思科考试是随报随考，在复习的过程中中还是不够全面，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 class address is 193.1.3.4 ?

a.) c b.) b c.) multi-cast d.) broadcast e.) a f.) d

a

2. on an isdn bri interface, the control channel is the ’d’ channel. what is the rate of this channel?

a.) 1.544 mbps b.) 2.048 mbps c.) 128 kbps d.) 16 kbps e.) 64 kbps

d

3which commands are valid to turn off all debugging? ( 2 answers)

a.) clear logging b.) no debug c.) no logging d.) clear debug e.) undebug all f.) no debug all

e f

4. the command ’show running-config’ displays the configuration script in ram, but what other command could you use to show information about objects stored in ram?

a.) show startup-config b.) show all c.) show config d.) debug ram e.) show buffers f.) show start

e packets are stored in memory locations called buffers during periods when the router BEComes over-loaded with other requests.

编辑推荐：

思科认证：CCNA认证考前精选模拟试题汇总三

思科认证：CCNA认证考前精选模拟试题汇总四