为了帮助考生们复习好《思科认证：CCNA认证学科》，我们考吧网整理了一些关于思科认证：CCNA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

1What OSI reference model layer do sockets function at (套接字在O S I参考模型的哪层运作)?

A. Application

B. Presentation

C. Session

D. Transport

E. Network

F. Data link

G. Physical

2 What function do sockets perform (套接字的功能是什么)?

A. They make remote functions appear local, transparent to the user

B. They transfer files to and from remote nodes

C. They make the transport layer independent

D. They allow multiple applications to share the same connection to the network

3.You are a technician at ABC. You receive a report from several ABC users whocomplain that they get slow responses when sending and receiving email, especiallywhen browsing the Internet. You investigate the complaint by checking the outputof a ping command issued from her computer and find that it indicates intermittedsuccess and failures messages, when attempting to contact the email server. Atracert to the corporate Internet gateway router shows high latency and occasionaltime out messages.What would be the most effective troubleshooting approach if you are to determine

the cause of the slow response time?

A. Bottom-up approach

B. Random access approach

C. Divide and conquer approach

D. Top-down approach

E. Top-down rule-out approach

4 What does TLI do (TLI的作用是什么)?

A. It makes remote functions appear local, transparent to the user

B. It transfers files to and from remote nodes

C. It makes the transport layer independent

D. It allows multiple applications to share the same connection to the network

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