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通过正版windows验证的四种方法WINDOWS XP自动在线升级不能进行了，因为通不过正版windows验证。没办法，搜索网站，从这个网站发现了三种方法： １。教你通过windows的正版验证(不改一字,只打个勾) ２。由于现在微软开始实行“Windows 正版增值计划”，需要验证您的 Windows 软件是否为正版，否则不能下载更新及一些增值软件。（部分VOL大客户版也不行）到http://www.microsoft.com/resources/howtotell/zh-chs/windows/default.mspx网站进入验证，下载并安装正版验证补丁，进入验证。如果你验证通过就下载恭喜你不用继续以下部分了。否则打开C:\Documents and Settings\All Users\Application Data\Windows Genuine Advantage\data文件夹，删除原来的data.dat文件，再新建一个文本文件，内容任意（不写任何字也可以），将其保存为data.dat(注意扩展名）。并修改这个dat文件为只读属性（关键）。通过Update网站、正版特别提供网站及下载中心站点正版下载的检验，都PASS。 ３。如果上面两种方法都无效，那就利用这个CDKEY来通过验证！ 点击下载此文件 ４。更绝的办法就是从９down.com 那里得到的，全文如下： Instructions: 我亲自试过了，第一种方法没有通过。用的第二种方法通过的。不过，第三种方法绝对能通过。第四种方法大家可一试。天才想法！ 本文转自：http://www.paimm.com/blog/user1/1/archives/2006/824.shtml 作者：bioguider 发表于 2006-5-21 19:37:14 CCNA-4- Version 2 - ======================================================================================================== Refer to the exhibit. How many broadcast domains are shown? *Three ==================================================== When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network? *1 and 2; 3 and 6 ==================================================== Refer to the exhibit. A network administrator has configuredF a network after subnetting the network number 192.168.0.0/28. Workstation 1 is not able to communicate with Workstation 2. What is the cause of this loss in communications? *Workstation 1 is not on the same network that the Router 1 LAN interface is on. ==================================================== Refer to the exhibit. The hub and the switch are operating using factory default settings. Which hosts will receive the frame if host A transmits a broadcast frame? *Workstations B, C, D, E, and the router will receive the data. ==================================================== Refer to the exhibit. A network associate needs to establish an Ethernet connection between Host A and Host B. However, the distance between the two hosts is further than the cabling standards allow. Which two devices that operate at the physical layer of the OSI can be used to allow Host A and Host B to communicate? (Choose two.) *hub *repeater ==================================================== Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A? IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17 ==================================================== Which devices will create multiple collision domains in an Ethernet network? (Choose two.) *switch *router ==================================================== Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model? *bits, frames, packets, segments, data ==================================================== Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate LAN links? (Choose two.) *link A *link E ==================================================== Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1? *straight-through ==================================================== ｂａｓｅd on the graphic above, which of the following occurs as each host system comes on line in the topology? *The switch adds MAC address to the bridge table as each host sends a frame. ==================================================== How does a switch learn the addresses of hosts connected to its ports? *The switch reads the source MAC address on incoming frames and records it in CAM. ==================================================== Refer to the exhibit. Which diagram represents the network topology that an administrator would prefer, and why would the administrator prefer it? *Diagram A. It will better provide available bandwidth to the hosts. ==================================================== After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring? *physical ==================================================== A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections? *session ==================================================== Which technologies are considered to be LAN technologies? (Choose two.) *Token Ring *Ethernet ==================================================== A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong? *172.16.192.160 ==================================================== What is the correct number of usable subnetworks and hosts for the IP network address 192.168.35.0 subnetted with a /28 mask? *14 networks / 14 hosts ==================================================== In the exhibit, the connections between the devices are labeled A, B, C, D, and E. For each connection, what is the correct UTP cable to use? *A=rollover, B=straight, C=straight, D=crossover, E=crossover ==================================================== A network administrator has added a new switch to the network. The new switch connects to an existing switch that is already installed. Which UTP cable correctly connects the new switch to the existing switch? *crossover ==================================================== Refer to the exhibit. What must be configured on Host B to allow it to communicate with the file server? (Choose three.) *a unique host IP address *the subnet mask for the LAN *the default gateway address ==================================================== Refer to the exhibit. Host A pings Host B. What can be concluded about the source and destination addresses contained in the communication sent by Router R5 when it forwards the ping out the Ethernet interface to Host B? (Choose two.) *source MAC address: 5555.AAAA.6666 *destination IP address: 192.168.10.134 ==================================================== What is the decimal representation of the binary number 11111000? *248 ==================================================== A large company has a network that is constantly changing. The routing tables in the routers need to be adjusted to reflect the changes in the routing paths. What type of routing would the network administrator implement? *dynamic routing protocols ==================================================== Which network device creates the highest amount of latency? *router ==================================================== Why do vendors utilize the OSI model when designing networking products? *It ensures greater compatibility and interoperability with equipment from different vendors. ==================================================== Which type of address is 192.168.170.112/28? *subnetwork address ==================================================== A router determines the path to deliver a packet. What layer of the OSI model does this fact represent? *network ==================================================== What are important characteristics to consider when purchasing a network interface card? (Choose two.) *media used on the network *system bus used on the computer ==================================================== Which subnet masks could be used when subnetting a Class B IP address? (Choose two.) *255.255.255.240 *255.255.192.0 ==================================================== Refer to the exhibit. The network administrator wants to create a subnet for the point-to-point connection between the two routers. Which subnetwork mask would provide enough addresses for the point-to-point link with the least number of wasted addresses? *255.255.255.252 ==================================================== Which characteristics are common to both UDP and TCP? (Choose two.) *uses port numbers *classified as a transport layer protocol ==================================================== Two peer hosts are exchanging data using TFTP. During the current session, a devices fails to arrive at the destination. Which statement is true regarding the retransmission of the devices? *devices retransmission is controlled by the application. ==================================================== Which protocols are TCP/IP application layer protocols? (Choose two.) *TFTP *DNS ==================================================== Which of the following statements are correct about CSMA/CD? (Choose three.) *It is a media access method used in LANs. *When a device needs to transmit, it checks to see if the media is available. *Only one device can successfully transmit at a time. ==================================================== Consider the networks shown in the exhibit. Host A is sending packets to host B. Which layer of the OSI model is being used when the router is making the calculated decision to determine which interface to send the packet out? *network ==================================================== An Ethernet host receives a frame, calculates the FCS, and compares the calculated FCS to the FCS received in the frame. The host finds that the two FCS values do not match. What action will be taken by the host? *The host discards the frame. ==================================================== A computer technician is asked to make a network cable. One end of the cable is pinned as a 568A and the other as a 568B. For what purhuhus can this cable be used? (Choose two.) *to connect a switch to a switch *to connect a hub to a switch ==================================================== Why would a company install a switch instead of a hub when building or expanding a corporate network? *A switch provides more bandwidth by sending frames only out the port to which the destination device is attached. A hub sends the frame out all ports except the source port. ==================================================== Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables? *The cable in Graphic A will produce more crosstalk. ==================================================== Refer to the exhibit. What kind of Ethernet cable is represented? *straight-through cable ==================================================== Which cable diagram displays the end to end pinout for a crossover cable used with Cisco devices? *Cable C ==================================================== Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication? *00-08-A3-B6-CE-02 ==================================================== A technician is testing connectivity between the devices using the ping command. Pings between Host B and Host A were successful. The technician could not ping the R3 address 172.16.3.2 from Host A. The technician issued ipconfig from Host A and saw the information displayed in the exhibit. What is the most likely problem? *The default gateway of Host A is incorrect. ==================================================== Refer to the exhibit. The physical documentation shows a portion of the internetwork of the ABC Company. Which segments will be free of collisions? *segments 3, 4, and 5 ==================================================== The ping command can be used to test connectivity between hosts. Which OSI model layers are verified by this test? *Layers 1, 2 and 3 ==================================================== Which physical network topology is easy to monitor and troubleshoot, easy to add new devices to as the network expands, but subject to complete failure when a central hub or switch ceases to work? *star ==================================================== A network administrator has installed a 24 port switch and connected 10 computers with 10/100 NICs. If the NICs are operating at 100 Mbps, how much bandwidth is available for each computer to receive data? *100 Mbps ==================================================== How many collision domains are shown in the diagram? *seven - Version 3 -
======================================================================================================== Refer to the exhibit. How many broadcast domains are shown? *Three ==================================================== When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network? *1 and 2; 3 and 6 ==================================================== Refer to the exhibit. A network administrator has configured a network after subnetting the network number 192.168.0.0/28. Workstation 1 is not able to communicate with Workstation 2. What is the cause of this loss in communications? *Workstation 1 is not on the same network that the Router 1 LAN interface is on. ==================================================== Refer to the exhibit. The hub and the switch are operating using factory default settings. Which hosts will receive the frame if host A transmits a broadcast frame? *Workstations B, C, D, E, and the router will receive the data. ================================================== Refer to the exhibit. A network associate needs to establish an Ethernet connection between Host A and Host B. However, the distance between the two hosts is further than the cabling standards allow. Which two devices that operate at the physical layer of the OSI can be used to allow Host A and Host B to communicate? (Choose two.) *hub*********** *repeater*********** ==================================================== Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A? IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17 ==================================================== Which devices will create multiple collision domains in an Ethernet network? (Choose two.) *switch
*router ==================================================== Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model? *bits, frames, packets, segments, data ==================================================== Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate LAN links? (Choose two.) *link A *link E
==================================================== Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1? *straight-through ==================================================== A wireless workstation must scan to find an available access point. What are two characteristics of a wireless workstation in passive scanning mode? (Choose two.) *The wireless node listens for beacons from an access point advertising an SSID and then attempts to join the network
*The wireless node listens for a beacon from an access point with the same WEP key and is allowed to authenticate to the WLAN.
==================================================== ｂａｓｅd on the graphic above, which of the following occurs as each host system comes on line in the topology? *The switch adds MAC address to the bridge table as each host sends a frame. ==================================================== How does a switch learn the addresses of hosts connected to its ports? *The switch reads the source MAC address on incoming frames and records it in CAM. ==================================================== Refer to the exhibit. Which diagram represents the network topology that an administrator would prefer, and why would the administrator prefer it? *Diagram A. It will better provide available bandwidth to the hosts. ==================================================== After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring? *physical ==================================================== A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections? *session ==================================================== Which technologies are considered to be LAN technologies? (Choose two.) *Token Ring
*Ethernet ==================================================== A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong? *172.16.192.160 ==================================================== What is the correct number of usable subnetworks and hosts for the IP network address 192.168.35.0 subnetted with a /28 mask? *14 networks / 14 hosts ==================================================== In the exhibit, the connections between the devices are labeled A, B, C, D, and E. For each connection, what is the correct UTP cable to use? A=rollover, B=straight, C=straight, D=crossover, E=crossover ==================================================== A network administrator has added a new switch to the network. The new switch connects to an existing switch that is already installed. Which UTP cable correctly connects the new switch to the existing switch? *crossover ==================================================== How many collision domains are shown in the diagram? *three ==================================================== Refer to the exhibit. What must be configured on Host B to allow it to communicate with the file server? (Choose three.) *a unique host IP address
*the subnet mask for the LAN *the default gateway address ==================================================== Refer to the exhibit. Host A pings Host B. What can be concluded about the source and destination addresses contained in the communication sent by Router R5 when it forwards the ping out the Ethernet interface to Host B? (Choose two.) *source MAC address: 5555.AAAA.6666 *destination IP address: 192.168.10.134 ==================================================== What is the decimal representation of the binary number 11111000? *248 ==================================================== 26 A large company has a network that is constantly changing. The routing tables in the routers need to be adjusted to reflect the changes in the routing paths. What type of routing would the network administrator implement? *dynamic routing protocols CCNA-3- Version 5 - ======================================================================================================== Refer to the exhibit. How many broadcast domains are shown? *Three ==================================================== When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network? *1 and 2; 3 and 6 ==================================================== Refer to the exhibit. A network administrator has configured a network after subnetting the network number 192.168.0.0/28. Workstation 1 is not able to communicate with Workstation 2. What is the cause of this loss in communications? *Workstation 1 is not on the same network that the Router 1 LAN interface is on. ==================================================== Refer to the exhibit. The hub and the switch are operating using factory default settings. Which hosts will receive the frame if host A transmits a broadcast frame? *Workstations B, C, D, E, and the router will receive the data. ==================================================== Refer to the exhibit. A network associate needs to establish an Ethernet connection between Host A and Host B. However, the distance between the two hosts is further than the cabling standards allow. Which two devices that operate at the physical layer of the OSI can be used to allow Host A and Host B to communicate? (Choose two.) *hub *repeater ==================================================== Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A? *IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17 ==================================================== Which devices will create multiple collision domains in an Ethernet network? (Choose two.) *switch *router ==================================================== Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model? *bits, frames, packets, segments, data ==================================================== Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate LAN links? (Choose two.) *link A *link E ==================================================== Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1? *straight-through ==================================================== A wireless workstation must scan to find an available access point. What are two characteristics of a wireless workstation in passive scanning mode? (Choose two.) *The wireless node listens for beacons from an access point advertising an SSID and then attempts to join the network. *The wireless node listens for a beacon from an access point with the same WEP key and is allowed to authenticate to the WLAN. ==================================================== ｂａｓｅd on the graphic above, which of the following occurs as each host system comes on line in the topology? *The switch adds MAC address to the bridge table as each host sends a frame. ==================================================== How does a switch learn the addresses of hosts connected to its ports? *The switch reads the source MAC address on incoming frames and records it in CAM. ==================================================== Refer to the exhibit. Which diagram represents the network topology that an administrator would prefer, and why would the administrator prefer it? *Diagram A. It will better provide available bandwidth to the hosts. ==================================================== After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring? *physical ==================================================== A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections? *session ==================================================== Which technologies are considered to be LAN technologies? (Choose two.) *Token Ring *Ethernet ==================================================== A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong? *172.16.192.160 ==================================================== What is the correct number of usable subnetworks and hosts for the IP network address 192.168.35.0 subnetted with a /28 mask? *14 networks / 14 hosts ==================================================== In the exhibit, the connections between the devices are labeled A, B, C, D, and E. For each connection, what is the correct UTP cable to use? *A=rollover, B=straight, C=straight, D=crossover, E=crossover ==================================================== A network administrator has added a new switch to the network. The new switch connects to an existing switch that is already installed. Which UTP cable correctly connects the new switch to the existing switch? *crossover ==================================================== How many collision domains are shown in the diagram? *seven ==================================================== Refer to the exhibit. What must be configured on Host B to allow it to communicate with the file server? (Choose three.) *a unique host IP address *the subnet mask for the LAN *the default gateway address ==================================================== Refer to the exhibit. Host A pings Host B. What can be concluded about the source and destination addresses contained in the communication sent by Router R5 when it forwards the ping out the Ethernet interface to Host B? (Choose two.) *source MAC address: 5555.AAAA.6666 *destination IP address: 192.168.10.134 ==================================================== What is the decimal representation of the binary number 11111000? *248 ==================================================== A large company has a network that is constantly changing. The routing tables in the routers need to be adjusted to reflect the changes in the routing paths. What type of routing would the network administrator implement? *dynamic routing protocols ==================================================== Which network device creates the highest amount of latency? *router ==================================================== Why do vendors utilize the OSI model when designing networking products? *It ensures greater compatibility and interoperability with equipment from different vendors. ==================================================== Which type of address is 192.168.170.112/28? *subnetwork address ==================================================== A router determines the path to deliver a packet. What layer of the OSI model does this fact represent? *network ==================================================== What are important characteristics to consider when purchasing a network interface card? (Choose two.) *media used on the network *system bus used on the computer ==================================================== Which subnet masks could be used when subnetting a Class B IP address? (Choose two.) *255.255.255.240 *255.255.192.0 ==================================================== Refer to the exhibit. The network administrator wants to create a subnet for the point-to-point connection between the two routers. Which subnetwork mask would provide enough addresses for the point-to-point link with the least number of wasted addresses? *255.255.255.252 ==================================================== Which characteristics are common to both UDP and TCP? (Choose two.) *uses port numbers *classified as a transport layer protocol ==================================================== Refer to the diagram. Which statements describe the transfer of data between Host A and the HTTP server? (Choose three.) *Host A uses UDP and creates a three-way handshake to synchronize sequence numbers. Window sizes are the same at the source and destination. The number of acknowledgments sent is less than or equal to the number of data segments received. *Host A uses TCP and creates segments of data. Destination port numbers are assigned dynamically and the source port number will be fixed to 80. *The transport layer is responsible for information flow control as well as establishing, maintaining, and terminating virtual connections between the client and server. ==================================================== Two peer hosts are exchanging data using TFTP. During the current session, a Cisco devices fails to arrive at the destination. Which statement is true regarding the retransmission of the Cisco devices? *Cisco devices retransmission is controlled by the application. ==================================================== Which protocols are TCP/IP application layer protocols? (Choose two.) *TFTP *DNS ==================================================== Which of the following statements are correct about CSMA/CD? (Choose three.) *It is a media access method used in LANs. *When a device needs to transmit, it checks to see if the media is available. * Only one device can successfully transmit at a time. ==================================================== Consider the networks shown in the exhibit. Host A is sending packets to host B. Which layer of the OSI model is being used when the router is making the calculated decision to determine which interface to send the packet out? *network ==================================================== An Ethernet host receives a frame, calculates the FCS, and compares the calculated FCS to the FCS received in the frame. The host finds that the two FCS values do not match. What action will be taken by the host? *The host discards the frame. ==================================================== A computer technician is asked to make a network cable. One end of the cable is pinned as a 568A and the other as a 568B. For what purhuhus can this cable be used? (Choose two.) *to connect a switch to a switch *to connect a hub to a switch ==================================================== Why would a company install a switch instead of a hub when building or expanding a corporate network? *A switch provides more bandwidth by sending frames only out the port to which the destination device is attached. A hub sends the frame out all ports except the source port. ==================================================== Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables? *The cable in Graphic A will produce more crosstalk. ==================================================== Refer to the topology in the graphic. Which characteristic does this type of topology possess? *Communication continues in the event of a break in any one connection. ==================================================== Refer to the exhibit. What kind of Ethernet cable is represented? *straight-through cable ==================================================== Which cable diagram displays the end to end pinout for a crossover cable used with Cisco devices? *Cable C ==================================================== Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication? *00-08-A3-B6-CE-02 ==================================================== A technician is testing connectivity between the devices using the ping command. Pings between Host B and Host A were successful. The technician could not ping the R3 address 172.16.3.2 from Host A. The technician issued ipconfig from Host A and saw the information displayed in the exhibit. What is the most likely problem? *The default gateway of Host A is incorrect. ==================================================== Refer to the exhibit. The physical documentation shows a portion of the internetwork of the ABC Company. Which segments will be free of collisions? *segments 3, 4, and 5 ==================================================== The ping command can be used to test connectivity between hosts. Which OSI model layers are verified by this test? *Layers 1, 2 and 3 ==================================================== Which physical network topology is easy to monitor and troubleshoot, easy to add new devices to as the network expands, but subject to complete failure when a central hub or switch ceases to work? *star ==================================================== A network administrator has installed a 24 port switch and connected 10 computers with 10/100 NICs. If the NICs are operating at 100 Mbps, how much bandwidth is available for each computer to receive data? *100 Mbps CCNA-2- Version 4 - ======================================================================================================== Which cable diagram displays the end to end pinout for a console cable used with Cisco devices? *Cable B ==================================================== How many broadcast domains are shown in the diagram? *three ==================================================== Refer to the exhibit. How many collision domains are present in the topology? *6 ==================================================== What can be verified by successfully pinging the reserved loopback address on a host? *The TCP/IP stack of the local host is installed correctly. ==================================================== When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network? *1 and 2; 3 and 6 ==================================================== A collision has occurred on an Ethernet network. Which three statements explain the CSMA/CD process? (Choose three.) *After the jam signal, all transmission stops for a random period.
*When the backoff period expires, each host checks to see whether the networking media is idle and then attempts to transmit. *When the collision is detected, the hosts continue to transmit using a jam pattern for a short time to ensure that all hosts detect the collision. ==================================================== A workstation is browsing a web server. What will be the partial contents of the segment sent from the workstation to the web server? *source port 1026, destination port 80, sequence number 1, ack number 0 ==================================================== Which protocols are TCP/IP application layer protocols? (Choose two.) *FTP
*SMTP ==================================================== A company has the following addressing scheme requirements: -currently has 25 subnets -uses a Class B IP address -has a maximum of 300 computers on any network segment -needs to leave the fewest unused addresses in each subnet What subnet mask is appropriate to use in this company? *255.255.254.0 ==================================================== Refer to the exhibit. Host A has been added to the network. However, host A cannot communicate with the server B or the Internet. All cables have been tested and are functioning to standards. At which layer of the OSI model is this problem occurring? *Layer 3 ==================================================== Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication? *00-08-A3-B6-CE-02 ==================================================== When the receiving workstation detects an error in the data it has received, it does not acknowledge receipt of the data. The source workstation retransmits the unacknowledged data. Which layer of the OSI model supports this process of retransmission? *transport ==================================================== Which subnet masks would be valid for a subnetted Class B address? (Choose two.) *255.255.252.0
*255.255.255.192 ==================================================== A network user is using the FTP protocol to transfer data from the local host to an FTP server. The local host is also using the SNMP protocol to report the system status to the network management system. Which statement describes the communication from the host? *FTP uses TCP to establish a session before any data is transferred. ================================================== A NIC of a computer has been assigned an IP address of 172.31.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong? *172.31.192.160 ==================================================== Which devices segment collision domains? (Choose two.) *router
*switch ==================================================== Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B? *crossover cable ==================================================== Refer to the exhibit. In an attempt to use a uniform subnet mask, the administrator selects the mask 255.255.255.240 for the exhibited networks. What is a possible problem with this addressing scheme? *Too many addresses will be reserved for hosts on the Ethernet networks.
==================================================== Refer to the exhibit. What must be configured on Host B to allow it to communicate with the Host C? (Choose three.) *a unique host IP address
*the default gateway address *the subnet mask for the LAN ==================================================== Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate WAN links? (Choose three.) *link B *link C *link D ==================================================== Refer to the exhibit. Which type of UTP cable should be used to connect Switch1 to Switch2? *crossover ==================================================== A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections? *session ==================================================== Which layer of the OSI model defines the process of adding the source and destination IP address to a data packet? *network ==================================================== Refer to the exhibit. What is the purpose of the highlighted address? *It allows the NIC to communicate with other devices on the same network. ==================================================== What is the correct number of usable subnetworks and hosts for the IP network address 192.168.99.0 subnetted with a /29 mask? *30 networks / 6 hosts ==================================================== Refer to the exhibit. Which type of cabling should be used at each of the connection points shown? *A-straight-through B-crossover C-straight-through D-fiber E-straight-through ==================================================== Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255? *172.16.128.0 255.255.224.0 ==================================================== Which binary number is a representation of the decimal number 248? *11111000 ==================================================== What are three characteristics of the TCP protocol? (Choose three.) *forces the retransmission of unacknowledged packets
*creates a virtual session between end-user applications *is responsible for breaking messages into segments and reassembling them at their destination ==================================================== Refer to the exhibit. A company needs to attach workstation E at a point 150 meters from an existing hub. What device should be placed at location D to allow the new host to connect to the network with the least amount of latency? *repeater ==================================================== Refer to the exhibit. An instructor in the network class has given the students the network diagram and asks the students to select the appropriate network devices. The goals are to provide a collision-free LAN environment and to provide Internet connectivity. What is the correct design? *Replace Box 1 with a Layer 2 switch and Box 2 with a router. ==================================================== A simplified CAM table for Switch1 is shown in the exhibit. If host A sends a frame with a destination MAC address of 66C, how does the switch process this frame? *The switch sends the frame out ports 2, 3, and 4. ==================================================== Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables? *The cable in Graphic A will produce more crosstalk. ==================================================== Which of the following increases the potential for a collision to occur? * an increase in the number of devices attached to the hub ==================================================== Which type of address is 223.168.17.167/29? *multicast address ==================================================== Refer to the exhibit. The internetwork in the exhibit has been assigned the IP address 172.20.0.0. What would be the appropriate subnet mask to maximize the number of networks available for future growth? *255.255.240.0 ==================================================== Workstation A sends data to workstation B. What will have to be altered as the data passes through the router? (Choose two.) *Layer 1 bit pattern
*Layer 2 frames ==================================================== What should a network administrator consider when migrating to Gigabit Ethernet architecture from Fast Ethernet? (Choose three.) *Existing NICs might need to be upgraded.
*Existing switches might need to be upgraded. *Existing UTP must be tested for CAT 5e compatibility. ==================================================== What type of routing is it when the network administrator manually configures a route? *static ==================================================== Refer to the exhibit. A network administrator attempts to increase the available bandwidth for workstation A by setting the NIC to full-duplex mode. After the configuration is changed, there are increased collisions and errors occurring. Why is this occurring in the network? *The hub will be continually producing a jam signal. ==================================================== Refer to the received frame in the exhibit. In what two ways is the information from the received frame used by a switch? (Choose two.) *192.168.10.11 is left intact as the frame is forwarded.
*To make the forwarding decision, the switch looks in its switch table for address aaaa.bbbb.cccc. ==================================================== An IT administrator desires to install a Gigabit Ethernet link between the two buildings shown in the exhibit. Conflicting suggestions have been given to the administrator from a variety of sources. Which suggestion should the administrator adopt to ensure the success of this project? *A combination of UTP, repeaters, and multimode optical fiber will reach 900 meters with Gigabit Ethernet. ==================================================== Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model? *data, segments, packets, frames, bits ==================================================== Which technologies are considered to be WAN technologies? (Choose two.) *DSL *Frame Relay ==================================================== Which statement describes a star topology? *Each host is connected to a hub or switch, either of which acts as a central point for all network connections. ==================================================== Refer to the exhibit. A network administrator is testing a connectivity issue in the network. The administrator discovers that host A cannot communicate with host B, host C, or RouterA. A ping command on host A to 127.0.0.1 succeeds. The NIC link indicator on host A is illuminated. Temporarily, the administrator removes the cable from host A and uses the LAN cable from host B to connect from host A to port 1 on the switch. While using the substitute cable, host A can communicate with host C and RouterA. At which layer of the OSI model was the problem occurring? *physical ==================================================== Refer to the exhibit. What type of cable connects the two routers together without any intermediary device? *crossover ==================================================== Refer to the exhibit. What is an advantage of using this type of topology? *Network communication continues in the event of a break.
==================================================== Refer to the exhibit. Host A is being manually configured for connectivity to the LAN. Which two addressing scheme combinations are possible configurations that can be applied to the host for connectivity? (Choose two.) *Address - 192.168.1.14 *Gateway - 192.168.1.33 CCNA-1==================================================== Which network device creates the highest amount of latency? *router ==================================================== Why do vendors utilize the OSI model when designing networking products? *It ensures greater compatibility and interoperability with equipment from different vendors. ==================================================== Which type of address is 192.168.170.112/28? *subnetwork address ==================================================== A router determines the path to deliver a packet. What layer of the OSI model does this fact represent? network ==================================================== What are important characteristics to consider when purchasing a network interface card? (Choose two.) *media used on the network
*system bus used on the computer ==================================================== Which subnet masks could be used when subnetting a Class B IP address? (Choose two.) *255.255.255.240
*255.255.192.0 ==================================================== Refer to the exhibit. The network administrator wants to create a subnet for the point-to-point connection between the two routers. Which subnetwork mask would provide enough addresses for the point-to-point link with the least number of wasted addresses? *255.255.255.252 ==================================================== Which characteristics are common to both UDP and TCP? (Choose two.) *uses port numbers
*classified as a transport layer protocol ==================================================== Refer to the diagram. Which statements describe the transfer of data between Host A and the HTTP server? (Choose three.) Host A uses UDP and creates a three-way handshake to synchronize sequence numbers. Window sizes are the same at the source and destination. The number of acknowledgments sent is less than or equal to the number of data segments received.
*Host A uses TCP and creates segments of data. Destination port numbers are assigned dynamically and the source port number will be fixed to 80. *The transport layer is responsible for information flow control as well as establishing, maintaining, and terminating virtual connections between the client and server. ==================================================== Two peer hosts are exchanging data using TFTP. During the current session, a Cisco devices fails to arrive at the destination. Which statement is true regarding the retransmission of the Cisco devices? *Cisco devices retransmission is controlled by the application. ==================================================== Which protocols are TCP/IP application layer protocols? (Choose two.) *TFTP
*DNS ==================================================== Which of the following statements are correct about CSMA/CD? (Choose three.) *It is a media access method used in LANs.
*When a device needs to transmit, it checks to see if the media is available. *Only one device can successfully transmit at a time. ==================================================== Consider the networks shown in the exhibit. Host A is sending packets to host B. Which layer of the OSI model is being used when the router is making the calculated decision to determine which interface to send the packet out? *network ==================================================== An Ethernet host receives a frame, calculates the FCS, and compares the calculated FCS to the FCS received in the frame. The host finds that the two FCS values do not match. What action will be taken by the host? * The host discards the frame. ==================================================== A computer technician is asked to make a network cable. One end of the cable is pinned as a 568A and the other as a 568B. For what purhuhus can this cable be used? (Choose two.) *to connect a switch to a switch *to connect a hub to a switch ==================================================== Why would a company install a switch instead of a hub when building or expanding a corporate network? *A switch provides more bandwidth by sending frames only out the port to which the destination device is attached. A hub sends the frame out all ports except the source port. ==================================================== Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables? *The cable in Graphic A will produce more crosstalk. ==================================================== Refer to the topology in the graphic. Which characteristic does this type of topology possess? *Communication continues in the event of a break in any one connection ==================================================== Refer to the exhibit. What kind of Ethernet cable is represented? *straight-through cable ==================================================== Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication? *00-08-A3-B6-CE-02 ==================================================== A technician is testing connectivity between the devices using the ping command. Pings between Host B and Host A were successful. The technician could not ping the R3 address 172.16.3.2 from Host A. The technician issued ipconfig from Host A and saw the information displayed in the exhibit. What is the most likely problem? *The default gateway of Host A is incorrect. ==================================================== Refer to the exhibit. The physical documentation shows a portion of the internetwork of the ABC Company. Which segments will be free of collisions? *segments 3, 4, and 5 ==================================================== The ping command can be used to test connectivity between hosts. Which OSI model layers are verified by this test? *Layers 1, 2 and 3*********** ==================================================== Which physical network topology is easy to monitor and troubleshoot, easy to add new devices to as the network expands, but subject to complete failure when a central hub or switch ceases to work? *star ==================================================== A network administrator has installed a 24 port switch and connected 10 computers with 10/100 NICs. If the NICs are operating at 100 Mbps, how much bandwidth is available for each computer to receive data? *100 Mbps ==================================================== CCNAWhich cable diagram displays the end to end pinout for a console cable used with Cisco devices? *Cable B ==================================================== How many broadcast domains are shown in the diagram? *three ==================================================== Refer to the exhibit. What device does Device X represent in the graphic to allow PC1 to ping PC4? *router ==================================================== Refer to the exhibit. How many collision domains are present in the topology? *6 ==================================================== What can be verified by successfully pinging the reserved loopback address on a host? *The TCP/IP stack of the local host is installed correctly. ==================================================== When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network? *1 and 2; 3 and 6 ==================================================== A collision has occurred on an Ethernet network. Which three statements explain the CSMA/CD process? (Choose three.) *After the jam signal, all transmission stops for a random period. *When the backoff period expires, each host checks to see whether the networking media is idle and then attempts to transmit. *When the collision is detected, the hosts continue to transmit using a jam pattern for a short time to ensure that all hosts detect the collision. ==================================================== A workstation is browsing a web server. What will be the partial contents of the segment sent from the workstation to the web server? *source port 1026, destination port 80, sequence number 1, ack number 0 ==================================================== Which protocols are TCP/IP application layer protocols? (Choose two.) *FTP *SMTP ==================================================== A company has the following addressing scheme requirements: -currently has 25 subnets-uses a Class B IP address-has a maximum of 300 computers on any network segment-needs to leave the fewest unused addresses in each subnet What subnet mask is appropriate to use in this company? *255.255.254.0 ==================================================== Refer to the exhibit. Host A has been added to the network. However, host A cannot communicate with the server B or the Internet. All cables have been tested and are functioning to standards. At which layer of the OSI model is this problem occurring? *Layer 3 ==================================================== Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication? *00-08-A3-B6-CE-02 ==================================================== When the receiving workstation detects an error in the data it has received, it does not acknowledge receipt of the data. The source workstation retransmits the unacknowledged data. Which layer of the OSI model supports this process of retransmission? *transport ==================================================== Which subnet masks would be valid for a subnetted Class B address? (Choose two.) *255.255.252.0 *255.255.255.192 ==================================================== A network user is using the FTP protocol to transfer data from the local host to an FTP server. The local host is also using the SNMP protocol to report the system status to the network management system. Which statement describes the communication from the host? *FTP uses TCP to establish a session before any data is transferred. ==================================================== A NIC of a computer has been assigned an IP address of 172.31.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong? *172.31.192.160 ==================================================== Which devices segment collision domains? (Choose two.) *switch ==================================================== Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B? *crossover cable ==================================================== Refer to the exhibit. What must be configured on Host B to allow it to communicate with the Host C? (Choose three.) *a unique host IP address *the default gateway address *the subnet mask for the LAN ==================================================== Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate WAN links? (Choose three.) *link B *link C *link D ==================================================== Refer to the exhibit. Which type of UTP cable should be used to connect Switch1 to Switch2? *crossover ==================================================== A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections? *session ==================================================== Which layer of the OSI model defines the process of adding the source and destination IP address to a data packet? *network ==================================================== Refer to the exhibit. What is the purpose of the highlighted address? *It allows the NIC to communicate with other devices on the same network. ==================================================== What is the correct number of usable subnetworks and hosts for the IP network address 192.168.99.0 subnetted with a /29 mask? *30 networks / 6 hosts ==================================================== Refer to the exhibit. Which type of cabling should be used at each of the connection points shown? *A-straight-through B-crossover C-straight-through D-fiber E-straight-through ==================================================== Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255? *172.16.128.0 255.255.224.0 ==================================================== Which binary number is a representation of the decimal number 248? *11111000 ==================================================== What are three characteristics of the TCP protocol? (Choose three.) *forces the retransmission of unacknowledged packets *creates a virtual session between end-user applications *is responsible for breaking messages into segments and reassembling them at their destination ==================================================== Refer to the exhibit. A company needs to attach workstation E at a point 150 meters from an existing hub. What device should be placed at location D to allow the new host to connect to the network with the least amount of latency? *repeater ==================================================== Refer to the exhibit. An instructor in the network class has given the students the network diagram and asks the students to select the appropriate network devices. The goals are to provide a collision-free LAN environment and to provide Internet connectivity. What is the correct design? *Replace Box 1 with a Layer 2 switch and Box 2 with a router. ==================================================== A simplified CAM table for Switch1 is shown in the exhibit. If host A sends a frame with a destination MAC address of 66C, how does the switch process this frame? *The switch sends the frame out ports 2, 3, and 4. ==================================================== Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables? *The cable in Graphic A will produce more crosstalk. ==================================================== Which of the following increases the potential for a collision to occur? * an increase in the number of devices attached to the hub ==================================================== Which type of address is 223.168.17.167/29? *multicast address ==================================================== Refer to the exhibit. The internetwork in the exhibit has been assigned the IP address 172.20.0.0. What would be the appropriate subnet mask to maximize the number of networks available for future growth? *255.255.252.0 ==================================================== Workstation A sends data to workstation B. What will have to be altered as the data passes through the router? (Choose two.) *Layer 1 bit pattern *Layer 2 frames ==================================================== What should a network administrator consider when migrating to Gigabit Ethernet architecture from Fast Ethernet? (Choose three.) *Existing NICs might need to be upgraded. *Existing switches might need to be upgraded. *Existing UTP must be tested for CAT 5e compatibility. ==================================================== What type of routing is it when the network administrator manually configures a route? *static ==================================================== Refer to the exhibit. A network administrator attempts to increase the available bandwidth for workstation A by setting the NIC to full-duplex mode. After the configuration is changed, there are increased collisions and errors occurring. Why is this occurring in the network? *The hub will be continually producing a jam signal. ==================================================== Refer to the received frame in the exhibit. In what two ways is the information from the received frame used by a switch? (Choose two.) *192.168.10.11 is left intact as the frame is forwarded. *To make the forwarding decision, the switch looks in its switch table for address aaaa.bbbb.cccc. ==================================================== An IT administrator desires to install a Gigabit Ethernet link between the two buildings shown in the exhibit. Conflicting suggestions have been given to the administrator from a variety of sources. Which suggestion should the administrator adopt to ensure the success of this project? *A combination of UTP, repeaters, and multimode optical fiber will reach 900 meters with Gigabit Ethernet. ==================================================== Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model? *data, segments, packets, frames, bits ==================================================== Which technologies are considered to be WAN technologies? (Choose two.) *DSL *Frame Relay =================================================== Which statement describes a star topology? *Each host is connected to a hub or switch, either of which acts as a central point for all network connections. ==================================================== Refer to the exhibit. A network administrator is testing a connectivity issue in the network. The administrator discovers that host A cannot communicate with host B, host C, or RouterA. A ping command on host A to 127.0.0.1 succeeds. The NIC link indicator on host A is illuminated. Temporarily, the administrator removes the cable from host A and uses the LAN cable from host B to connect from host A to port 1 on the switch. While using the substitute cable, host A can communicate with host C and RouterA. At which layer of the OSI model was the problem occurring? *physical ==================================================== Refer to the exhibit. What type of cable connects the two routers together without any intermediary device? *crossover ==================================================== Refer to the exhibit. What is an advantage of using this type of topology? *Network communication continues in the event of a break. ==================================================== Refer to the exhibit. Host A is being manually configured for connectivity to the LAN. Which two addressing scheme combinations are possible configurations that can be applied to the host for connectivity? (Choose two.) *Address - 192.168.1.82 Gateway - 192.168.1.65 *Address - 192.168.1.70 Gateway - 192.168.1.65 ==================================================== Which of the following devices extend a collision domain? (Choose two.) *hub *bridge-(check) *repeater ==================================================== A technician needs to connect a FastEthernet port from a router to a FastEthernet port on a switch. The graphic shows the RJ-45 cable ends for a patch cable. What result can be expected if this cable is used for the link? *The cable will be able to pass traffic between the devices. ==================================================== CCNA answer Final1 Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.
85
90 * BA A1 B3 1C 2 Convert the Hexadecimal number A2 into its Base 10 equivalent. Select the correct answer from the list below.
156
158 160 * 162 164 166 3 Select the necessary information that is required to compute the estimated time it would take to transfer data from one location to another. (Choose two.)
* file size
data format network in use type of medium * bandwidth of the link 4 Using the data transfer calculation T=S/BW, how long would it take a 4MB file to be sent over a 1.5Mbps connection?
52.2 seconds
* 21.3 seconds 6.4 seconds 2 seconds 0.075 seconds 0.0375 seconds 5 What are features of the TCP/IP Transport layer? (Choose two.)
path determination
handles representation, encoding and dialog control * uses TCP and UDP protocols packet switching * reliability, flow control and error correction 6 Which combinations of charges will be repelled by electric force? (Choose two.)
neutral and neutral
neutral and positive neutral and negative * positive and positive positive and negative * negative and negative 7 Which of the following are considered the best electrical conductors for use in data network communications? (Choose three.)
glass fibers
* copper * gold plastic silicon * silver 8 During cable testing, which of the following are used to calculate the information carrying capacity of a data cable? (Choose two.)
bit speed
* attenuation wire map saturation limit * analog bandwidth 9 The highest capacity Ethernet technologies should be implemented in which areas of a network? (Choose three.)
between workstation and backbone switch
between individual workstations * between backbone switches * between enterprise server and switch * on aggregate access links 10 What device must be used between an AUI port of a networking device and the media to which it is being connected?
a transducer
a transmitter * a transceiver a transponder a port replicator 11 An ISDN Basic Rate Interface (BRI) is composed of how many signaling channels?
* 1
2 3 4 12 Which of the following items are common to all 100BASE technologies? (Choose three.)
* frame format
media connectors * timing * multi-part encoding 13 Which of the following does 1000BASE-T use to accomplish gigabit speeds on Cat 5e cable?
the use of four conductors in full-duplex mode
the use of two multiplexed pairs of wires, simultaneously the use of three pairs of wires for data and the fourth for stabilization and forward error correction * the use of all four pairs of wires in full-duplex mode, simultaneously 14 For which of the following is Ethernet considered the standard? (Choose three.)
* inter-building connection
mid-length voice video conferencing * vertical wiring * horizontal wiring diagonal wiring 15 John has been hired as the network administrator of a local company and has decided to add more hubs to the company's existing network. Which of the following has been caused by John's inexperience?
* collision domain extended
an increased number of collision domains increased network performance increased bandwidth extended bandwidth 16 "CompA" is trying to locate a new computer named "CompB" on the network. Which of the following does "CompA" broadcast to find the MAC address of "CompB"?
MAC request
* ARP request ping Telnet proxy ARP 17 Which of the following is a term associated with replacing hubs with switches to increase the number of collision domains?
encapsulation
latency * segmentation layered model broadcast domain extended 18 The accumulation of traffic from which of the following can cause a network condition called broadcast radiation? (Choose three.)
anonymous FTP servers
telnet sessions * video over IP applications NAS services * ARP requests * RIP updates 19 Which of the following describes the use of Spanning Tree Protocol (STP)?
resolve routing loops
eliminate Split Horizon errors limit collisions * resolve switching loops 20 Which term describes an ARP response by a router on behalf of a requesting host?
ARP
RARP * Proxy ARP Proxy RARP 21 Which OSI layer encapsulates data into packets?
session
transport * network data link 22 Which OSI layer defines the functions of a router?
physical
data link * network transport session 23 Which of the following are Cisco proprietary routing protocols? (Choose two.)
RIPv2
* IGRP OSPF BGP RIPv1 * EIGRP 24 A company with a Class B license needs to have a minimum of 1,000 subnets with each subnet capable of accommodating 50 hosts. Which mask below is the appropriate one?
255.255.0.0
255.255.240.0 255.255.255.0 * 255.255.255.192 255.255.255.224 25 A small company has a class C network license and needs to create five usable subnets, each subnet capable of accommodating at least 20 hosts. Which of the following is the appropriate subnet mask?
255.255.255.0
255.255.255.192 * 255.255.255.224 255.255.255.240 26 When a network administrator applies the subnet mask 255.255.255.248 to a Class A address, for any given subnet, how many IP addresses are available to be assigned to devices?
1022
510 254 126 30 * 6 27 If a network administrator needed to download files from a remote server, which protocols could the administrator use to remotely access those files? (Choose two.)
NFS
ASCII * TFTP IMAP * FTP UDP 28 What is established during a connection-oriented file transfer between computers? (Choose two.) a temporary connection to establish authentication of hosts
* a connection used for ASCII or binary mode data transfer a connection used to provide the tunnel through which file headers are transported a command connection which allows the transfer of multiple commands directly to the remote server system * a control connection between the client and server 29 Which of the following protocols are used for e-mail transfer between clients and servers? (Choose three.)
TFTP
SNMP * POP3 * SMTP * IMAP4 postoffice 30 What type of wiring problem is depicted in this sample of a cable tester?
a fault
a short * an open a split a good map 31 Which layer of the OSI model covers physical media?
* Layer 1
Layer 2 Layer 3 Layer 4 Layer 5 Layer 6 32 What type of network cable is used between a terminal and a console port?
cross-over
straight-through * rollover patch cable 33 What does the "10" in 10Base2 indicate about this version of Ethernet?
The version uses Base10 numbering within the frames.
* The version operates at a transmission rate of 10 Mbps. Frames can travel 10 meters unrepeated. The maximum frame length is 10 octets. 34 How is a MAC address represented? four groups of eight binary digits separated by a decimal point
four Base10 digits separated by a decimal point six hexadecimal digits * twelve hexadecimal digits twenty-four Base10 digits 35 To make sure timing limitations are not violated when implementing a 10 Mbps Ethernet network involving hubs or repeaters, a technician should adhere to which rule?
the 4-5-3 rule
the 6-4-2 rule the 3-4-5 rule * the 5-4-3 rule 36 Which of the following wireless standards increased transmission capabilities to 11 Mbps?
802.11a
* 802.11b 802.11c 802.11d 37 Which protocol functions at the internet layer of the TCP/IP protocol suite?
File Transfer Protocol (FTP)
Trivial File Transfer Protocol (TFTP) Transmission Control Protocol (TCP) * Internet Protocol (IP) User Datagram Protocol (UDP) Simple Mail Transport Protocol (SMTP) 38 Which of these workstation installation and setup tasks are concerned with network access layer functions? (Choose two.)
configuring the e-mail client
* installing NIC drivers configuring IP network settings * connecting the network cable using FTP to download application software updates 39 Which part of an IP address identifies a specific device on a network?
first two octets
third and fourth octets network portion * host portion only the fourth octet 40 Which of the following are features of the Internet Protocol (IP)? (Choose two.)
* It is the most widely implemented global addressing scheme.
It allows two hosts to share a single address on a local area network. * It is a hierarchical addressing scheme allowing addresses to be grouped. It is only locally significant, used primarily on local area networks. 41 In a new network installation, the network administrator has decided to use a medium that is not affected by electrical noise. Which cable type will best meet this standard?
coaxial
screened twisted pair shielded twisted pair unshielded twisted pair * fiber optic 42 What is the recommended maximum number of workstations configured on a peer-to-peer network?
25
15 * 10 5 2 43 What is the maximum distance that 10BASE-T will transmit data before signal attenuation affects the data delivery?
* 100 meters
185 meters 300 meters 500 meters 44 Which type of institution does the domain suffix .org represent?
government
education network * non-profit 45 Which of the following services is used to translate a web address into an IP address?
* DNS
WINS DHCP Telnet 46 Which part of the URL http://www.awsb.ca/teacher gives the name of the domain?
www
http:// /teacher * awsb.ca 47 Which of the following will test the internal loopback of a node?
ping 10.10.10.1
ping 192.168.1.1 * ping 127.0.0.1 ping 223.223.223.223 ping 255.255.255.255 48 Which of the following is the Layer 4 PDU?
bit
frame packet * segment 49 Which of the following are small, discrete components found within a personal computer? (Choose three.)
* transistor
microprocessor power supply * capacitor * light emitting diode hard disk 50 What is important to remember about the data link layer of the OSI model when considering Peer to Peer communication? (Choose three.)
It links data to the transport layer.
It encapsulates frames into packets. * It provides a service to the network layer. * It encapsulates the network layer information into a frame. * Its header contains a physical address which is required to complete the data link functions. It encodes the data link frame into a pattern of 1s and 0s (bits) for transmission on the medium. 51 Which of the following are useable Class A IP addresses with a default subnet mask? (Choose three.)
127.0.39.1
* 111.9.28.30 * 123.1.2.132 128.50.38.2 * 105.1.34.1 0.23.92.3 -------------------------------------------------------------------------
1 Which of the following OSI layers offers reliable, connection-oriented data communication services? application
presentation
session
*transport
network
-------------------------------------------------------------------- 2 Router interface Ethernet 0 has been assigned the IP address 10.172.192.168 255.255.255.240. What is the network IP address of this interface? 10.0.0.0
10.172.0.0
10.172.192.0
*10.172.192.160
10.172.192.168
10.172.192.175
-------------------------------------------------------------------- 3 Examine the graphic with current configurations. The New York Offices of ABC Company recently upgraded the computers in the administrative office. Shortly after the upgrade, Host A in the clerical office failed and was replaced with one of the retired administrative office computers. However, the computer can not access the company network in the new location. What is the likely cause of this network access issue for Host A? MAC address incorrectly entered
*default gateway incorrectly entered
subnet mask incorrectly entered
IP address incorrectly entered
4
Which of the following increases the potential for a collision to occur? the use of an active hub instead of an intelligent hub
the use of an intelligent hub instead of an active hub
a reduction in the number of devices attached to the hub
*an increase in the number of devices attached to the hub *
-------------------------------------------------------------------- 5 What is attenuation? opposition to the flow of current
measurement of electrical signals relative to time
*degradation of a signal as it travels along the medium
amount or volume of traffic that is flowing on the medium
-------------------------------------------------------------------- 6 Two peer hosts are running applications that exchange data using UDP. During the current session, a datagram fails to arrive at the destination. What is true concerning the retransmission of the datagram? Datagram retransmission occurs when the retransmission timer expires in the source host.
Datagram retransmission occurs when the retransmission timer expires in the destination host.
*Datagram retransmission is controlled by the application layer protocol.
Datagram retransmission involves only the data with sequence numbers equal to or higher than the sequence number of the current datagram.
-------------------------------------------------------------------- 7 What is significant about the ping 127.0.0.1 command? *It verifies the operation of the TCP/IP protocol stack on a host and is called an internal loopback test.
It verifies connection to the remote host with the IP address 127.0.0.1.
It verifies whether the router that connects the local network to other networks can be reached.
It verifies the route packets take between the local host and the host with the IP address 127.0.0.1.
8
Which LAN switching mode has the highest latency? fast forward
fragment-free
latency forwarding *store-and-forward -------------------------------------------------------------------- 9 Which of the following application layer protocols use UDP segments? (Choose two.) *DNS
FTP
Telnet
*TFTP
SMTP
-------------------------------------------------------------------- 10 Which cable specifications are indicated by 100BASE-T? 100-Mbps transmission speed, baseband signal, coaxial cable
100-Mbps transmission speed, broadband signal, twisted-pair cable
*100-Mbps transmission speed, baseband signal, twisted-pair cable
Equal to 10-Gbps transmission speed, baseband signal, twisted-pair cable
-------------------------------------------------------------------- 11 When is a crossover cable used in a network? when connecting a host to the router console port
when connecting a host to a switch
*when connecting a host to a host
when connecting a switch to a router
12
Refer to the graphic. What must be configured on Host A to allow it communicate with the e-mail server? (Choose three.) IP address *
subnet mask *
default gateway *
router name
switch name
NetBIOS name address
-------------------------------------------------------------------- 13 Which cable diagram displays the end to end pinout for a crossover cable used with Cisco devices? Cable A
Cable B
*Cable C
Cable D
-------------------------------------------------------------------- 14 Which type of address is 192.168.17.134/29? *host address
network address
broadcast address
multicast address
15
How many collision domains are shown in the diagram? three
four
five
six
*seven
eight
-------------------------------------------------------------------- 16 When is a straight-through cable used in a network? when connecting a router through the console port
when connecting one switch to another switch
*when connecting a host to a switch
when connecting a router to another router
-------------------------------------------------------------------- 17 How does network cable length affect attenuation? Category 5 cable that is run in metal conduit has the highest attenuation in the shortest distance.
Shorter cable lengths have greater signal attenuation.
*Longer cable lengths have greater signal attenuation.
The length of the cable has no effect on signal attenuation.
18
Which of the following statements are correct about CSMA/CD? (Choose three.) It is a media access method used in LANs. *
It is a media access method used in FDDI WANs.
When a device needs to transmit, it checks to see if the media is available. *
A device sends data without checking media availability because all devices have equal access. Multiple devices can successfully transmit simultaneously.
*Only one device can successfully transmit at a time.
-------------------------------------------------------------------- 19 Which of the following must be present for current to flow? (Choose three.) *closed loop
bit-generating device
insulating material
*source of voltage
*load
switch
-------------------------------------------------------------------- 20 If Host A pings Host B through a newly installed switch with no entries in the MAC address table, which stations will receive the ping packet? B only
A and B
B and switch
A, B, and switch
B, C, D, and switch *
A, B, C, D, and switch
21 Which devices shown in the graphic must have a MAC address? only PC
only router
PC and router
PC, hub, and router
*PC, printer, and router
-------------------------------------------------------------------- 22 What kind of connection is represented in the graphic? *console connection
Ethernet connection
ISDN connection
leased line connection
-------------------------------------------------------------------- 23 Which of the following is the decimal representation of the binary number 11010011? 203
204
*211
212
-------------------------------------------------------------------- 24 Which type of cable is required to make a connection between a router console port and a PC COM port? straight-through cable
crossover cable
*rollover cable
DB-9 cable
coaxial cable
25
Determine the number of useable networks and hosts for the IP address 192.168.50.0/27 4 networks / 62 hosts
6 networks / 64 hosts
32 networks / 8 hosts
*6 networks / 30 hosts
8 networks / 32 hosts
2 networks / 8 hosts
-------------------------------------------------------------------- 26 A network administrator is placing an older router back in to service. The administrator discovered that the IOS and configuration files need to be updated to meet the LAN specifications. Which application layer protocol is used to transfer the new configuration files into the router memory? SNMP
SMTP
HTTP
*TFTP
-------------------------------------------------------------------- 27 Which of the following best describes Spanning Tree Protocol? It enables a network to span across multiple physical segments.
*It enables a switch to eliminate switching loops.
It enables a switch to dynamically choose the best switch mode.
It enables a switch to perform as a router.
-------------------------------------------------------------------- 28 Which of the following subnet masks could be used when subnetting a Class B IP address? (Choose two.) 255.0.0.0
*255.255.0.0
255.192.255.0
255.224.0.0
*255.255.252.0
255.255.255.128
-------------------------------------------------------------------- 29 How is data encapsulated as it is moved down the OSI model? data, segments, frames, packets, bits
data, packets, segments, frames, bits
*data, segments, packets, frames, bits
data, packets, frames, segments, bits
-------------------------------------------------------------------- 30 Which of the following describes latency? the noise generated from outside a cable
the degradation of a signal as it travels along the media
the time required for a NIC to place a frame on the network media
*the delay between the time a frame leaves its source device and reaches its destination
-------------------------------------------------------------------- 31 Which of the following is the binary representation of the decimal number 111? *01101111
01111101
11110111
11101101
-------------------------------------------------------------------- 32 Which LAN switching mode begins switching after reading only the first 64 bytes of the frame? fast forward
*fragment-free
latency forwarding
store-and-forward
33
When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network? 1 and 2; 4 and 5
1 and 2; 3 and 6 *
3 and 6; 7 and 8
4 and 5; 7 and 8
-------------------------------------------------------------------- 34 Which of the following commands could be used on a Windows-based computer to view the current IP configuration of the system? (Choose two.) configip
ifconfig
*ipconfig
*winipcfg
winipconfig
-------------------------------------------------------------------- 35 Which type of address is 192.168.17.111/28? host address
network address
*broadcast address
multicast address
36
Which of the following networking devices increase the number of collision domains? (Choose three.) *switch
hub *router repeater *bridge -------------------------------------------------------------------- 37 What information can be determined from the MAC addresses of PC1, PC2, and PC3, as shown in the graphic? (Choose two.) PC1 and PC2 NICs need to be replaced because they have the same OUI identifier.
PC2 and PC3 NICs need to be replaced because they have different OUI identifiers.
*PC1 and PC2 NICs are from the same vendor.
PC1 and PC3 NICs need to be replaced because they have the same vendor-assigned address.
*PC2 and PC3 NICs are from different vendors.
PC2 and PC3 NICs are from the same vendor.
-------------------------------------------------------------------- 38 Which of the following are considered WAN technologies? (Choose two.) *DSL
Ethernet
Wireless Ethernet
*T1-Carrier
Token Ring
39 which one of the router connectors shown in the graphic would be used for a LAN connection? Connector A
Connector B
*Connector C
Connector D
-------------------------------------------------------------------- 40 How is full-duplex capability typically achieved in fiber-optic cable? *Two fibers are encased in separate sheaths.
Light is bounced at different rates in opposite directions.
Transmit speeds are so high that half-duplex is acceptable.
Colors of the light spectrum are separated into transmit and receive streams.
-------------------------------------------------------------------- 41 Which of the following are characteristics of IP? (Choose three.) connection-oriented protocol
connectionless protocol*
reliable protocol
unreliable protocol *
routed protocol *
routing protocol
-------------------------------------------------------------------- 42 Which of the following describe the token-passing logical topology? (Choose two.) *FDDI is an example of a token-passing network.
Token-passing logical topologies must also be physical ring topologies.
One of the disadvantages of the token-passing logical topology is the high collision rate.
Computers transmit data after "listening" to the wire to detect other traffic.
*Computers are allowed to transmit data only when they possess a token.
43 What is the maximum length of a media segment used for 100BASE-TX? *100 meters
185 meters
400 meters
500 meters
-------------------------------------------------------------------- 44 which of the following networking devices divide a network into separate collision domains? (Choose two.) repeater
*bridge
*switch
AUI
hub
-------------------------------------------------------------------- 45 Which of the following are characteristics of UTP cable? (Choose three.) *Each wire is covered by insulating material.
It is not affected by EMI or RFI.
*It is a four-pair wire medium.*
It is difficult to terminate the cable.
*It relies on the cancellation effect produced by the twisted wire pairs.
It is more expensive than any other type of LAN cabling.
46
Examine the graphic with current configurations. Host A in the Clerical offices failed and was replaced. Although a ping to 127.0.0.1 was successful, the replacement computer can not access the company network. What is the likely cause of the problem? IP address incorrectly entered
network cables unplugged
*subnet mask incorrectly entered
network card failure
-------------------------------------------------------------------- 47 Which of the following describes a physical full-mesh topology? It requires termination at both ends of the cable.
It uses a hub or a switch as a central point to connect all wires.
*It provides maximum connectivity between all network systems.
It links all computers to a main computer that controls all traffic on the network.
-------------------------------------------------------------------- 48 Which two statements describe the TFTP protocol? (Choose two.) uses authenticated file transfer procedure
provides connection-oriented service
*provides connectionless service
provides more features that FTP
*lacks most of the features of FTP
-------------------------------------------------------------------- 49 Which of the following are transport layer protocols of the TCP/IP model? (Choose two.) FTP
*UDP SMTP TFTP *TCP 50
Which type of UTP network cable connects two Cisco switches? straight-through
*crossover
rollover
patch
-------------------------------------------------------------------- 51 How will the MAIN router dynamically learn a route to the 10.16.10.48/28 subnetwork in the diagram? with a routed protocol
*with a routing protocol
with a static route
with a directly connected route
-------------------------------------------------------------------- 52 Which of the following describes the RIP version 1 routing protocol? Cisco proprietary hybrid protocol
*distance vector protocol that uses hop count as the only metric *
link state protocol supporting multiple routed protocols
distance vector protocol that uses delay, bandwidth, load, and reliability metrics
-------------------------------------------------------------------- 53 How many broadcast domains are shown in the diagram? *three
four
five
six
seven
eight
54 Which of the following are advantages of UTP cable? (Choose three.) *less expensive than fiber optic
*flexible and easy to run in a building
distance between signal boosts is longer than it is for coaxial
*transmits data at a faster rate than any copper-based media
receives less RMF and EMI interference than other types -------------------------------------------------------------------- Which of the following devices extend a collision domain? (choose 2) *-hub *-repeater |
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