正确答案: B

扩展的ACL核查数据包的源地址和目标地址和端口号

题目：扩展ACL和标准ACL的区别（）。

解析：B

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学习资料的答案和解析：

[单选题]下面对Cisco2621路由器和Cisco2501路由器描述中，错误的是（）

Cisco2501上提供一个100Mbit/s的快速以太网端口

[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.