2014年思科认证考试：(Cisco)CCNA仿真试题1
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 is the correct order for the OSI model?
P=Presentation, S=Session, D=Datalink, Ph=Physical, T=Transport, A= Application,
N=Network
A. P S A PH D N T B. A P S T N D PH
C. PH D N T A S P D. P S A T N D PH
Answer B. It is crucial you not only memorize this and know what each layer does.
2 Which of the following is not a part of the Session layer?
A. Establishing a session
B. Ensuring error free segments
C. Ending a session
D. Keeping the sender and receiver from sending a message at the same time
Answer B. That is the job of the Transport layer.
3 What is encapsulation?
A. Putting the header on an incoming frame
B. Putting a header on an incoming segment
C. Putting a header on an outgoing frame
D. Putting a header on an outgoing bit
Answer C. This also includes trailers and can be put on segments, packets, and frames.
4 Which layer is most concerned with user applications?
A. Application
B. Presentation
C. Network
D. Physical
Answer A.
5 Which of the following is de-encapsulation?
A. Stripping the header from a frame
B. Putting a header on a segment
C. Putting a header on a frame
D. Stripping a frame from a link
Answer A.
This also includes trailers as in question 2.
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