为了帮助广大考生系统全面的复习好《思科认证：CCNA认证学科》，我们考吧网整理了思科认证模拟试题，本次汇编的模拟试题希望对你的考试有所帮助，预祝你考试顺利。

1. What are features of the TCP/IP Transport layer? (Choose two.) (3，5)

1) path determination

2) handles representation, encoding and dialog control

3) uses TCP and UDP protocols

4) packet switching

5) reliability, flow control and error correction

2. When troubleshooting a network, the output of the command show interfaces indicates a large number of runts. What is a runt?

A. the number of packets that are discarded because they exceed the maximum packet size of the medium

B. errors created when the CRC generated by the originating LAN station or far-end device does not match the checksum calculated from the data received.

C. the number of packets that are discarded because they are smaller than the minimum packet size of the medium

D. the number of received packets that were ignored by the interface because the interface hardware ran low on internal buffers E. the number of times that the interface requested another interface within the router to slow down

Answer: C

3. Which two of these elements need to be configured prior to enabling SSH? (Choose two.)

A. hostname

B. loopback address

C. default gateway

D. domain name

E. SSH peer address

Answer: AD

4. Which of the following is the Layer 4 PDU? (4)

1) bit

2) frame

3) packet

4) Segment

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思科认证：CCNA认证考前精选模拟试题汇总二  

思科认证：CCNA认证考前精选模拟试题汇总三