您所在的位置:读书频道 > 考试认证 > 思科 > Cisco CCNA 640-802试题(81-85)

Cisco CCNA 640-802试题(81-85)

2007-12-24 11:17 佚名 51CTO.com 字号:T | T
一键收藏,随时查看,分享好友!

本文内容为Cisco CCNA认证考试640-802(81-85)试题及答案。

AD:

81. Refer to the exhibit. Hosts on the same VLAN can communicate with each other but are unable to communicate with hosts on different VLANs. What is needed to allow communication between VLANs?

A. a switch with a trunk link that is configured between the switches
B. a router with an IP address on the physical interface that is connected to the switch
C. a switch with an access link that is configured between the switches
D. a router with subinterfaces configured on the physical interface that is connected to the switch

Answer: D

82. Why would a network administrator configure port security on a switch?

A. to prevent unauthorized Telnet access to a switch port
B. to limit the number of Layer 2 broadcasts on a particular switch port
C. to prevent unauthorized hosts from accessing the LAN
D. to protect the IP and MAC address of the switch and associated ports
E. to block unauthorized access to the switch management interfaces over common TCP ports

Answer: C 

83. The show interfaces serial 0/0 command resulted in the output shown in the graphic. What are possible causes for this interface status? (Choose three.)

A. The interface is shut down.
B. No keepalive messages are received.
C. The clockrate is not set.
D. No loopback address is set.
E. No cable is attached to the interface.
F. There is a mismatch in the encapsulation type.

Answer: BCF

84. Refer to the output of the two show commands in the exhibit. If an administrator tries to ping host 10.1.8.5 from host 10.1.6.100, how will the ICMP packets be processed by Router A?


A. The packets will be discarded.
B. The packets will be routed out the S0/0 interface.
C. The packets will be routed out the S0/1 interface.
D. The packets will be routed out the Fa0/0 interface.

Answer: C

85. On which types of network will OSPF elect a backup designated router?

A. point-to-point and multiaccess
B. point-to-multipoint and multiaccess
C. point-to-point and point-to-multipoint
D. nonbroadcast and broadcast multipoint
E. nonbroadcast and broadcast multiaccess

Answer: E

【责任编辑:雪花 TEL:(010)68476606】

回书目   上一节   下一节

分享到:

关于CCNA  认证考试  640-802的更多文章

  1. Linux服务器配置全程实录
  2. 揭秘--优秀PPT这样制作

热点职位

更多>>

热点专题

更多>>

读书

计算机病毒分析与防治简明教程
本书全面翔实地介绍了各种病毒的原理,以操作系统的发展为主线,结合病毒的发展过程来综合分析病毒。在分析工具上,较多地利用了

51CTO旗下网站

领先的IT技术网站 51CTO 中国首个CIO网站 CIOage 中国首家数字医疗网站 HC3i 51CTO学院 区块链第一聚合媒体 zhijiapro