南昌商学院CCNA二课程期末考试试卷.doc

系别： 专业班级： 姓名： 学号： 装 订 线 南昌商学院CCNA二课程期末考试试卷(A卷)适用专业计科02级考试所需时间120试卷总分100考试日期6月16日开卷 / 闭卷闭卷成 绩一、选择题（共40题，每题2分）1、What will occur if the command service password-encryption is entered on a router? (Choose two). A、It will allow the user EXEC mode password to be encrypted.B、It will set an MD5 hashing algorithm on all unencrypted passwords.C、It will apply a weak encryption to all unencrypted passwords.D、It will set the enable secret password to be encrypted.E、It will apply an MD5 hashing algorithm to encrypt the console and telnet passwords.F、It will configure the user EXEC mode, telnet, and enable passwords as encrypted.2、The following access list has been correctly applied to a router interface:access-list 52 deny 2access-list 52 permit anyWhich of the following statements are true about this ACL? (Choose three.)A. This is an invalid ACL because the wildcard mask is missing from the command.B. A wildcard mask of is assumed for 2.C. This is an extended IP access list.D. All traffic from 1 will be permitted.E. This is a standard IP access list.3、Which router component stores the information that is displayed by the show ip route command? A. CPUB. FlashC. NVRAMD. RAM 4、A network administrator issues the erase startup-config command on a configured router with the configuration register set to 0x2102 and observes the following output:Erasing the nvram filesystem will remove all files! Continue? ConfirmOKErase of nvram: complete If the router unexpectedly loses power after this sequence, what will occur when power is restored?A. The router will enter ROM monitor mode upon completion of the power-on self test (POST).B. The router will load the last known valid configuration file.C. The router will enter Rx-boot mode.D. The router will prompt the user to enter setup mode or to continue without entering setup mode.5、What will occur when the following ACL is applied inbound to both FastEthernet interfaces of Router A in the graphic? access-list 125 permit tcp 55 55 eq 23access-list 125 permit tcp 55 55 eq 23access-list 125 permit tcp 55 any eq wwwA. Workstations A and B will be able to Telnet to each other. Workstation A will be allowed to access Web servers on the Internet, while Workstation B will be denied Internet Web access.B. Workstations A and B will be able to Telnet to each other. All other traffic will be denied.C. The ACL will have no effect because it should be applied in the outbound direction on the FastEthernet interfaces.D. The ACL will deny all traffic because of the implied deny ip any any statement at the end of the ACL.6、What are the results of setting the boot field bits in the configuration register to 0000? (Choose two.) A. The startup-config file will be ignored at bootup.B. The router will load the IOS from Flash.C. The router will enter ROM monitor mode upon reload.D. The router will enter boot ROM mode and have limited capabilities.E. The administrator can enter the b command to manually boot the IOS.7、Refer to the graphic. A network administrator has a console connection to Router A. Pings to Router B are successful, but pings to Routers C and D fail. What is the first step in troubleshooting the problem? A. Use the show cdp neighbors detail command from router A to gather information about all cisco routers in the network.B. Use the traceroute command to discover exactly which link in the network is down.C. Use an extended ping from router A to each router in the network.D. Use the show interfaces command from a Telnet session on router B to check the connection to router C.8、Which of the following describe Ethernet and serial interfaces of a router? (Choose two.) A. They are enabled by default.B. They may be administratively disabled by using the shutdown command. C. They must be configured with an IP address and subnet mask in order to forward packets.D. They must be configured with an IP address and a clockrate in order to forward packets.E. They may be administratively disabled by using the no shutdown command.9、A network administrator must configure a serial interface with an IP address. The configuration must also identify the remote site to which the interface is connected. Which set of commands will meet these requirements?A. Chicago(config)# description San Jose T1 Chicago(config)# interface serial0/0 Chicago(config-if)# ip address 52B. Chicago(config)# interface serial0/0 Chicago(config-if)# ip address 52 Chicago(config-if)# description San Jose T1C. Chicago(config)# interface serial0/0 Chicago(config-if)# ip address netmask 52 Chicago(config-if)# description San Jose T1D. Chicago(config)# interface serial0/0 Chicago(config-if)# ip address 52 Chicago(config-if)# remote site San Jose T1E. Chicago(config)# interface serial0/0 Chicago(config-if)# ip address 52 Chicago(config-if)# interface description San Jose T110、Which of the following are correct statements verified by the router output shown in the graphic? (Choose two.) A. Layer 3 connectivity exists between BigCity and the devices in the Device ID column.B. Layer 2 connectivity exists between BigCity and the devices in the Device ID column.C. All devices shown in the Device ID column use the TCP/IP protocol suite.D. All devices shown in the Device ID column can be pinged from BigCity.E. All devices listed in the Device ID column are directly connected to BigCity.11、A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A? A. A(config)# router ripA(config-router)# passive-interface S0/0B. B(config)# router ripB(config-router)# network 8B(config-router)# network 4C. A(config)# router ripA(config-router)# no network 2D. B(config)# router ripB(config-router)# passive-interface S0/0E. A(config)# no router rip12、What could a Cisco support technician learn from the IOS filename c2600-d-mz.121-3? (Choose three.) A. the format of the fileB. the RAM memory requirements of the fileC. the version number of the fileD. the size of the fileE. the device platform of the file13、A network administrator wishes to load a configuration file from a TFTP server into NVRAM on a router. Which of the following methods will create a startup-config file in NVRAM that matches the contents of the configuration file on the TFTP server? A. Copy the configuration file from a TFTP server using the command copy tftp startup-config.B. Copy the configuration file from a TFTP server using the command copy filename connect CHIB. ATL telnet CHIC. ATL# D. ATL# connect ATLE. CHI# telnet F. CHI# telnet ATL19、Which two steps describe how to create a functional physical connection between a router console and a terminal? (Choose two.) A. Use a crossover cable to connect the terminal serial port to the router console port.B. Use a rollover cable to connect the terminal NIC to the router console port.C. Use an RJ-45 to DB-9 adapter on the terminal serial port to connect to the cable going to the router console.D. Use a transceiver to connect a straight-through cable to the router console port.E. Use a straight-through cable to connect the router console port to the terminal NIC.F. Use a rollover cable to connect from a terminal serial port to the router console port.20、Router A is directly connected to the networks shown in the graphic and has a default route that points to Router B. All interfaces are active and properly addressed. However, when the workstation on network /24 sends a packet to destination address , it is discarded by Router A. What can be a reason for this result? A. The ip classless command is not enabled on Router A.B. Router B is in a different autonomous system than Router A.C. Routers A and B are using different routing protocols.D. Router A has no route in its routing table that includes the address .21、The following access list has been created to prevent traffic from host 6 from accessing the network.access-list 44 deny host 6access-list 44 permit anyRefer to the graphic. Which group of commands will properly place the access list so that the host is denied access only to network ?A. Rome(config)# interface fa0/0Rome(config-if)# ip access-group 44 inB. Rome(config)# interface s0/1Rome(config-if)# ip access-group 44 outC. Tokyo(config)# interface s0/0Tokyo(config-if)# ip access-group 44 inD. Tokyo(config)# interface fa0/0Tokyo(config-if)# ip access-group 44 out22、Which router components and operations are correctly described? (Choose two.) A. ROM - stores the backup configuration fileB. RAM - loads the operating systemC. NVRAM - stores the configuration file D. Flash - executes diagnostics at bootupE. POST - runs diagnostics on hardware modulesF. DRAM - loads the bootstrap23、 Refer to the graphic. Communication is needed between the LAN connected to the fa0/0 interface of the Kansas router and the fa0/0 interface of the Maine router. All hosts on those LANs also need connectivity to the Internet. Which commands will allow this communication? (Choose three). A. Kansas(config)# ip route B. Kansas(config)# ip route s0/1C. Kansas(config)# ip route s0/1D. Maine(config)# ip route E. Maine(config)# ip route s0/1F. Maine(config)# ip route 24、Which statements are true regarding setup mode? (Choose three.)A. Press Ctrl-z to terminate setup mode.B. Enter a question mark (?) for help at any point.C. Press Spacebar to accept the default settings.D. Use setup mode to enter complex protocol features.E. Press Enter to accept the default settings. F. Press Ctrl-c to abort configuration dialog.25、Due to a security violation, the router passwords must be changed. What information can be learned from the following configuration entries? (Choose two.) Router(config)# line vty 0 3Router(config-line)# password c13c0Router(config-line)# login A. The entries specify three Telnet lines for remote access.B. The entries specify four Telnet lines for remote access.C. The entries set the console and Telnet password to c13c0.D. Telnet access will be denied because the Telnet configuration is incomplete.E. Access will be permitted for Telnet using c13c0 as the password.26、 Refer to the network and routing table entries shown in the graphic. How much time will elapse before Router A expects to receive another update from Router B? A. 5 secondsB. 13 secondsC. 17 secondsD. 25 secondsE. 65 secondsF. 90 seconds27、While planning an IOS upgrade, the administrator issues the show version command. Based on the output in the graphic, what is the current IOS boot location? A. RAMB. NVRAMC. FlashD. ROM28、Which of the following are primary functions of a router? (Choose two.) A. packet switchingB. microsegmentationC. domain name resolutionD. path selectionE. flow control29、Based on this partial output of the show ip route command, which routing protocol is configured on the router?I /24 100/80135 via , 00:00:27, Serial0/0 A. RIP v1B. RIP v2C. IGRPD. EIGRPE. OSPFF. IGP30、Assuming the following ACL is correctly applied to a router interface, what can be concluded about this set of commands? (Choose two.)Router(config)# access-list 165 deny tcp 55 55 eq 23Router(config)# access-list 165 permit ip any any A. This is a standard IP access list that denies network Telnet access to the network.B. All Telnet traffic destined for from any network will be denied access.C. Network is denied Telnet access to the network.D. Network is denied Telnet access to the network.E. All FTP and HTTP traffic destined for will be permitted access.31、Router A and Router B have been correctly configured to use RIP as a dynamic routing protocol and all intefaces on Router A and Router B are reporting interface is up, line protocol is up status. RIP is then configured on Router C using the following commands:RouterC(config)# router ripRouterC(config-router)# network RouterC(config-router)# network If no additional routing is configured on Router A, Router B, and Router C, what will be the result? A. Networks /24, /24, and /16 will be unreachable from Router A.B. Router A will have no knowledge of network /24, but will have routes to networks /24 and /16.C. All networks shown in the graphic will be reachable by Router A, Router B, and Router C.D. Networks /24 and /16 will be unreachable from Router A and Router B.32、Which commands will show the status and IP address of all interfaces on a router? (Choose two.)A. show protocolsB. show ip protocolsC. show versionD. show interfacesE. show ip ports33、If a PC does not have network connectivity to a router, which router port can be used to establish communication? A. consoleB. EthernetC. serialD. VTY34、Which ACL can be applied in the outbound direction of Serial 0/0 on router B in the graphic to allow all IP traffic from LAN A to the Internet, allow Web traffic from LAN B to the Internet, and deny all other traffic to the Internet? A. access-list 98 permit 55 anyaccess-list 98 permit tcp 55 any eq wwwB. access-list 125 permit ip 55 anyaccess-list 125 permit tcp 55 any eq wwwC. access-list 132 permit ip 55 anyaccess-list 132 permit tcp 55 any eq wwwaccess-list 132 permit ip any anyD. access-list 156 permit ip 55 anyaccess-list 156 permit ip 55 any eq www35、What can a network administrator do to recover from a lost router password? A. perform a reload or resetB. telnet from another router and issue the show running-config command to view the passwordC. boot the router to ROM monitor mode and configure the router to ignore NVRAM when it initializesD. boot the router to bootROM mode and enter the b command to load the IOS manually36、In what order will the initial startup routine of a router locate and load the IOS if the config-register setting is 0x2102 and there are no boot system commands present in the startup-config file? A. Flash, ROM, TFTP serverB. RAM, Flash, NVRAMC. Flash, TFTP server, ROMD. ROM, TFTP server, FlashE. Flash, NVRAM, RAMF. ROM, Flash, TFTP server37、During initial router bootup the following line appears:NVRAM invalid, possibly due to write erase.What are two possible reasons for this result? (Choose two.) A. The startup-config file was not saved to RAM before reboot.B. The IOS has been erased.C. The router has not been configured.D. The startup-config file cannot be located.E. The router will not enter initial configuration dialog.38、 Refer to the graphic. Which series of commands will create static routes that will allow Router A and Router B to deliver packets destined for LAN A and LAN B, and direct all other traffic to the Internet