CCNA考试题库中英文翻译版及答案1

 1. What are two reasons that a network administrator would use access lists? (Choose two.)

　　1.出于哪两种理由，网络管理员会使用访问列表?

　　A. to control vty access into a router

　　A.控制通过VTY访问路由器

　　B. to control broadcast traffic through a router

　　B.控制广播流量穿越路由器

2.一个默认的帧中继WAN被分类为哪种物理网络类型?

　　A. point-to-point

　　A.点到点

　　B. broadcast multi-access

　　B.广播多路访问

　　C. nonbroadcast multi-access

　　C.非广播多路访问

        D. nonbroadcast multipoint

　　D.非广播多点

　　E. broadcast point-to-multipoint

　　E.广播点到多点

　　Answer: C

3. A single 802.11g access point has been configured and installed in the center of a squar

　　A few wireless users are experiencing slow performance and drops while most users are o

　　at peak efficiency. What are three likely causes of this problem? (Choose three.)

　　3.一个802.11接入点被部署在一个方形办公室的中央，当大多数用户在大流量传输数

　　一些无线用户发现无线网络变得缓慢和出现丢包

　　A. mismatched TKIP encryption

　　B. null SSID

　　C. cordless phones

　　D. mismatched SSID

　　E. metal file cabinets

　　F. antenna type or direction

　　Answer: CEF