火速求助ccna题目解答

xiaopei233

我有几道问题 想求正确的答案啊 各位看看有什么见解啊

45. Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two.)

A. The transport layer divides a data stream into segments and may add reliability and flow control

information.

B. The data link layer adds physical source and destination addresses and an FCS to the segment.

C. Packets are created when the network layer encapsulates a frame with source and destination host

addresses and protocol-related control information.

D. Packets are created when the network layer adds Layer 3 addresses and control information to a

segment.

E. The presentation layer translates bits into voltages for transmission across the physical link.

Answer: AD

还是~~~~~AC？

121. Which command reveals the last method used to powercycle a router?

A. show reload

B. show boot

C. show running-config

D. show version

Answer: D

还是~~~~~~~~~~A？

126. When troubleshooting a Frame Relay connection, what is the first step when performing a loopback

test?

A. Set the encapsulation of the interface to HDLC.

B. Place the CSU/DSU in local-loop mode.

C. Enable local-loop mode on the DCE Frame Relay router.

D. Verify that the encapsulation is set to Frame Relay.

Answer: A

~还是~~~~~~~~D？

135. What two things will a router do when running a distance vector routing protocol? (Choose two.)

A. Send periodic updates regardless of topology changes.

B. Send entire routing table to all routers in the routing domain.

C. Use the shortest-path algorithm to the determine best path.

D. Update the routing table based on updates from their neighbors.

E. Maintain the topology of the entire network in its database.

Answer: AD
还是~~~~~~~~~~AB？


b 还是c？



还有
1.ccna实验题第一题
【A network associate is configuring a router for the weaver company to provide internet access. The ISP has
provided the company six public IP addresses of 198.18.184.105 198.18.184.110. The company has 14
hosts that need to access the internet simultaneously. The hosts in the company LAN have been assigned
private space addresses in the range of 192.168.100.17 - 192.168.100.30 .】
这个NAT题目的
accesslist中
答案中
Bomar(Config)#access-list 1 permit 192.168.16.33 0.0.0.15
的192.168.16.33是不是可以用192.168.16.0 代替啊？
其实 就是表明是在这一个子网的都允许通过啊？
谢谢解答。

2.rip  v2的题目中
题目中没有写clockrate 的话 要是自己是设定一个dce端 要不要自己随便写一个clockrate啊？ 求助  谢谢 各位老师解答

findalex

按照题库给的答案写

顶。。楼上

ygyxf6

126是D，其他都没问题，rip V2的时钟一定要加。