Cisco CCNA最新真题自测获奖结果及答案解析

第十五期的技术自测为 Cisco CCNA 认证考试最新真题体验 ,自测时间一周，截至到现在参与自测的回复量为93。

具体自测试题、操作方法及参与活动用户自测情况可参看：http://bbs.51cto.com/thread-451790-1-1.html

目前软考模拟自测时间一周结束，但为了大家更好的学习，自测试题还向大家开放进行测试，但是测试结果将不再有作为奖励的依据，以下为本次自测的获奖名单以及试题答案。

点击进入本周自测：边界网关安全防护自测

一、获奖名单

1.总分第一名ID号：（奖品为一本《超级网管员——网络管理》图书，请获得奖品的朋友尽快将自己详细信息提交至limian@51cto.com）：

第一名：feiying0703

2.总分为满分的ID号：（获得满分的均加50无忧币）

feiying0703  gnehsuil  venus  cnzqf  wuxi  ncrr   icefire  page  lstc  sunhu112  buaacj   haiyong   恋爱中的鱼  xyvan   redking   jordan_00001   njjim  patrriot   sea987 blacknet liuhuis1  liuhuilmzy  lijun0737 headboy  shengfu

二、有奖自测答案（欢迎大家参看答案进行学习与交流）：
1   The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command?

A. This command should be executed from the global configuration mode.
B. The IP address 10.121.16.8 is the local router port used to forward data.
C. 102 is the remote DLCI that will receive the information.
D. The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.

Answer: D

2   While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist?

A. the session layer
B. the network layer
C. the data link layer
D. the access layer

Answer: B

3  In order to allow the establishment of a Telnet session with a router, which set of commands must be configured?

A. router(config)# line console 0
router(config-line)# enable password cisco

B. router(config)# line console 0
router(config-line)# enable secret cisco
router(config-line)# login

C. router(config)# line console 0
router(config-line)# password cisco
router(config-line)# login

D. router(config)# line vty 0
router(config-line)# password cisco
router(config-line)# login

Answer: D
4.On point-to-point networks, OSPF hello packets are addressed to which address?

A. 127.0.0.1
B. 192.168.0.5
C. 224.0.0.5
D. 254.255.255.255

Answer:Ｃ

5.What should be part of a comprehensive network security plan?

A. Allow users to develop their own approach to network security.
B. Physically secure network equipment from potential access by unauthorized individuals.
C. Encourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten.
D. Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported.

Answer: B

6.During startup, the router displays the following error message:boot: cannot open "flash:" What will the router do next?

A. Because of damaged flash memory, the router will fail the POST.
B. It will attempt to locate the IOS from a TFTP server. If this fails, it will initiate the setup dialog.
C. It will attempt to locate the IOS from a TFTP server. If this fails, it will load a limited IOS from ROM.
D. It will attempt to locate the configuration file from a TFTP server. If this fails, it will initiate the setup dialog.

Answer: C

7.At which OSI layer is a logical path created between two host systems?

A. session
B. transport
C. network
Ｄ physical

Answer: C

8.A routing protocol is required that supports:
1) routing update authentication
2) an addressing scheme that conserves IP addresses
3) multiple vendors
4) a network with over 50 routers
Which routing protocol fulfills these requirements?

A. RIPv1
B. RIPv2
C. EIGRP
D. OSPF

Answer: D

9. When a new trunk is configured on a 2950 switch, which VLANs by default are  allowed over the trunk link?

A. no VLANs
B. all VLANs
C. only VLANs 1 - 64
D. only the VLANs that are specified when creating the trunk

Answer: B

10. Which protocol provides a method of sharing VLAN configuration information  between switches?

A. VTP
B. STP
C. ISL
D. 802.1Q

Answer: A