2014年思科认证：CCNA认证考试高分必备能力提升试题及答案4
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
1. which of the following is an example of the network layer?
a.) sql b.) llc c.) tcp d.) ip e.) token ring
d most protocol suites have differnet osi layer protocols within them. at layer 3, ip is for tcp/ip. tcp is layer 4. ipx is for ipx/spx. spx is layer 4.ddp is for appletalk
2. given the following address: 157.89.8.64 255.255.0.0 which part represents the host portion of the address?
a.) 0.89.8.64 b.) 0.0.8.64 c.) 157.89.0.0 d.) 157.0.0.0 e.) 0.0.0.64
b using the subnet mask 255.255.0.0, the first 16 bits represent the network, the last 16 bits represent the host.
3. which isdn specification series deals with concepts and terminology?
a.) f-series
b.) i- series
c.) world series
d.) 911-series
e.) q-series
f.) j-series
b the 2 most important isdn specifications are q & i: q - call setup and teardown. i - concepts and terminology.
4. which command would change the cisco discovery protocol (cdp) update to 90 second intervals?
a.) cdp router 90 b.) router cdp 90 c.) cdp timer 1.5 d.) set timer cdp=1.5 e.) cdp timer 90 f.) timer cdp 1.5
e
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