正确答案: C
254
题目:How many usable IP addresses can you get from a conventional Class C address?
解析:解析:Explanation:
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举一反三的答案和解析:
[单选题]访问控制列表分为标准和扩展两种。下面关于ACL的描述中,错误的是()。
标准ACL可以根据分组中的IP目标地址进行过滤
[单选题]交换机转发数据到目的地依靠()
MAC地址表
[单选题]混合型协议既具有“距离矢量路由协议”的特性,又具有“链路状态路由协议”的特性,下列协议中属于混合型协议的是:()
EIGRP
[单选题]路由器的配置文件startup-config存放在()里
NVRAM
[单选题]下列路由协议中,属于链路状态路由协议的是()
OSPF
[单选题]关于帧中继的说法,正确的是()
可以偷占带宽
[单选题]Study the Exhibit below carefully:London#show vtp
Forwards information about VTP configuration.
解析:解析:Explanation:FromtheoutputthisswitchisoperatingmerelyasVTPclient,soitbasicallydoesastheVTPserversays,andpassesoninformationaboutVTPconfigurationtothenextswitchinline.IncorrectAnswers:A.Thisisincorrectbecausethefunctionisredundant.B.ThisincorrectbecausetheswitchmustbeinserverortransparentmodetocreateandchangeVLANs.D.ThisisincorrectbecauseifVTPwouldbedisabled,itwouldn'tappearonthecommandoutput.E.Ifthisweretrue,theVTPconfigurationinformationwouldnotbedisplayedafterbeingpoweredon.