CCNA考试模拟器（需JRE支持）

1. The accompanying graphic shows an extended IP access-list configuration. Router#show access-list Extended IP access list 105 deny tcp any 172.30.24.64 0. 0. 0.63 eq smtp deny tcp any any eq telnet Router#show ip interface eo Etherneto is up, line protoco1 is up Internet address is 172.18.9.60/24 Broadcast address is 255.255.255.255 Address determined by setup command Mtu is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Outgoing access list is 105 Inbound access list is not set Proxy arp is enabled Security level is default Split horizon is enabled _________________________________________ Rest of configuration omitted _________________________________________ What is the result of applying the access-list to Ethernet 0? A. Only e-mail and telnet access will be permitted out of Ethernet 0. B. All hosts on the 172.30.24.64 network will be permitted e-mail and telnet access. C. All TCP protocols will be permitted out of Ethernet 0 except e-mail and telnet. D. All IP traffic out of Ethernet 0 will be denied. E. The access-list is numbered incorrectly and will fail. Answer: D 2. Which of the following commands applies an access control list to a router interface? A. permit access-list 101 out B. ip access-group 101 out C. apply access-list 101 out D. access-class 101 out E. ip access-list e0 out Answer: B 3. Which command is used to display the placement and direction of an IP access control list on a router? A. show access-list B. show ip route 1 C. show ip interface D. show interface E. show interface list F. show ip interface brief Answer: C 4. Which command displays the configuration register setting? A. show register B. show flash C. show boot D. show version Answer: D 5. Which command successfully pings an individual IP address? A. Router> ping 192.5.5.0 B. Router# ping 192.5.5.30 C. Router> ping 192.5.5.256 D. Router# ping 192.5.5.255 Answer: B 6. Which command will provide you with information regarding the Layer 3 configuration of directly connected router interfaces? A. show ip interface B. show cdp neighbors C. show cdp neighbors detail D. show ip route E. show ip link status F. telnet Answer: C 7. Which command loads a new version of the Cisco IOS into a router? A. copy flash ftp B. copy ftp flash C. copy flash tftp D. copy tftp flash Answer: D 8. You are the network administrator of the Tasti-Treats Cereal Company. You receive a call from a user who is unable to reach a server at a remote site. After further review, you discover the following information: local PC 每 10.0.3.35/24 default gateway 每 10.0.3.1 remote server 每 10.0.5.250/24 You then conduct the following tests from the offending local PC: ping 127.0.0.1 每 successful ping 10.0.3.35 每 successful ping 10.0.3.1 每 successful ping 10.0.5.250 每 unsuccessful Which of the following problems would create the test results listed above? A. TCP/IP not correctly installed B. local physical layer problem C. local NIC not functioning. D. Remote physical layer problem Answer: D 9. RouterA(config)#router igrp 100 RouterA(config-router)#network 192.168.3.0 RouterA(config-router)#network 192.168.4.0 RouterA(config-router)#network 192.168.5.0 RouterA(config-router)#network 172.16.0.0 RouterB(config)#router igrp 101 RouterB(config-router)#network 192.168.3.0 RouterB(config-router)#network 192.168.6.0 RouterB(config-router)#network 192.168.7.0 Given the router configurations shown, which networks will be found in RouterB＊s routing table, assuming a properly configured network? A. 192.168.3.0 192.168.4.0 192.168.5.0 192.168.6.0 192.168.7.0 172.16.0.0 B. 192.168.3.0 192.168.6.0 192.168.7.0 C. 192.168.3.0 192.168.4.0 192.168.5.0 192.168.6.0 192.168.7.0 D. 172.16.0.0 E. 192.168.3.0 192.168.4.0 192.168.5.0 Answer: B 10. Your Ethernet network, 172.30.1.0, shuts down. Which update message is seen in your router＊s debug ip rip output regarding that network? A. subnet 172.30.1.0, metric 0 B. subnet 172.30.1.0, metric 1 C. subnet 172.30.1.0, metric 15 D. subnet 172.30.1.0, metric 16 Answer: D 11. Which of the following protocols utilizes features of both distance-vector and link-state routing? A. RIP B. OSPF C. EIGRP D. IGRP Answer: C 12. You telnet to a host on a remote network. Which MAC address will be present in the ARP table when you issue the show arp command? A. MAC address of the destination host Ethernet port B. MAC address of the local router Ethernet port C. MAC address of the destination router Serial port D. MAC address of the local router Serial port Answer: B 13. Which parameter must be supplied when initializing the IGRP routing process? A. connected network numbers B. IP address mask C. metric weights D. autonomous system number E. registered administrative id Answer: D 14. A routing table contains static, RIP, and IGRP routes for the same destination network. Which route would normally be used to forward data? A. The IGRP route B. The static route C. The RIP route D. All three will load balance Answer: B 15. Which method does a Cisco Catalyst switch use to identify the VLAN membership of a frame over trunked links? A. Frame filtering with VLAN ID B. Frame tagging with VLAN ID C. Frame tagging with trunk ID D. Frame filtering with trunk ID E. Frame filtering with VTP port ID Answer: B 16. Given the following routing table entry, which of the following are used by default in calculation of the number 1200?(Choose 2) 172.16.0.0[100/1200]via 192.168.16.3, 00:00:55, Ethernet 1 A. MTU B. Bandwidth C. Administrative distance D. Hop count E. Metric F. Delay Answer: B F 17. Which route will not be entered into the routing table of the receiving router? Router_B#show ip route Codes:C-connected,s-static,I-IGRP,R-RIP,M-mobile,B-BGP,D-EIGRP,EX-EIGRP external, O-OSPF,IA-OSPF inter area,EI-OSPF external type1,E2-OSPF external type2,E-EGP, I-IS_IS,L1-IS_IS LeveL-1,L2-IS_IS Level-2,*-candidate default,U-per-user static route Gateway of last resort is not set R 192.168.8.0/24[120/1] via 192.168.2.2, 00:00:10, Serial 0 C 192.168.9.0/24 is directly connected,Serial 1 R 192.168.10.0/24[120/7] via 192.168.9.1, 00:00:02, Serial 1 R 192.168.11.0/24[120/7] via 192.168.9.1, 00:00:03, Serial 1 C 192.168.1.0/24 is directly connected,Ethernet 0 C 192.168.2.0/24 is directly connected,Serial 0 R 192.168.3.0/24[120/1] via 192.168.2.2, 00:00:10, Serial 0 R 192.168.4.0/24[120/15] via 192.168.2.2, 00:00:10, Serial 0 R 192.168.5.0/24[120/15] via 192.168.2.2, 00:00:10, Serial 0 R 192.168.6.0/24[120/15] via 192.168.2.2, 00:00:10, Serial 0 R 192.168.7.0/24[120/1] via 192.168.2.2, 00:00:10, Serial 0 A. R 192.168.8.0/24[120/1]via 192.168.2.2,00:00:10,Serial 0 B. R 192.168.11.0/24[120/7]via 192.168.9.1,00:00:03,Serial 1 C. C 192.168.1.0/24[120/7] is directly connected, Ethernet0 D. R 192.168.5.0/24[120/15]via 192.168.2.2,00:00:10,Serial 0 Answer : D 18. Given the network 199.141.27.0 with a subnet mask of 255.255.255.240, identify the valid host addresses.( Choose three.) A. 199.141.27.33 B. 199.141.27.112 C. 199.141.27.119 D. 199.141.27.126 E. 199.141.27.175 F. 199.141.27.208 Answer: A C D 19. Users on network 192.168.69.0/28 are complaining that they can not access the corporate intranet server at www.inhouse.com. In troubleshooting this problem, you find that you are able to telnet from a workstation on this network to the internal webserver via its IP address. What is the most likely cause of this problem? A. TCP/IP failure B. DNS failure C. FTP failure D. SNMP failure Answer: B 20. IPX traffic using different encapsulation type can go over the same data link A. true B. false Answer: A 21. ICMP(reffered to in RFC 1700) is implemented by all TCP/IP hosts A. true B. false Answer: A 22. Cal