[多选题]You need to configure an 802.1Q link on a Ezonexam switch. Which commands, when used together, would do this? (Select two answer choices)

正确答案 ：CD

Switch(config-if) switchport mode trunk

Switch(config-if) switchport trunk encapsulation dot1q

解析：C,D 解析：Explanation:

[单选题]关于PPP和HDLC的说法中，错误的是（）

正确答案 ：D

在配置ISDN时，广域网协议不能封装成PPP，但可以封装成HDLC

[单选题]OSI七层模型中，物理层的数据封装名称为（）

正确答案 ：A

比特

[单选题]为了使配置私有IP的设备能够访问互联网，应采用的技术是()

正确答案 ：A

NAT

[单选题]OSPF骨干区的区域编号为（）

正确答案 ：C

0.0.0.0

[单选题]You have a class C network, and you need to design it for 5 usable subnets with each subnet handling a minimum of 18 hosts each. Which of the following network masks should you use?

正确答案 ：D

255.255.255.224

解析：解析：Explanation:ThedefaultsubnetmaskforclassCnetworkis255.255.255.0.Ifonehastocreate5subnets,then3bitsarerequired.With3bitswecancreate8subnets.Theremaining5bitsareusedforHosts.Onecancreate30hostsusing5bitsinhostfield.Thismatcheswiththerequirement.IncorrectAnswers:A,B:ThisisanillegalsubnetmaskforaclassCnetwork,asthethirdoctetcannotbedividedwhenusingaclassCnetwork.C:ThisisthedefaultsubnetmaskforaclassCnetwork.Itprovidesforonenetwork,with254usablehostIPaddresses.E:Thissubnetmaskwillprovidefor14separatenetworkswith14hostseach.Thisdoesnotmeettherequirementofaminimumof18hosts.

[单选题]路由器上，清空路由表的命令是（）

正确答案 ：D

clearip route*

[单选题]扩展IP访问权限表的表号范围是：()

正确答案 ：C

100-199

[单选题]After connecting a PC to an available port on a switch, you find that the PC can not access any of the resources on the LAN. No other PC's connected to the switch appear to be having any issues. What is the most likely cause for this problem?

正确答案 ：B

The host switch port is assigned to the incorrect VLAN

解析：解析：Explanation:VirtualLANsbreakupbroadcastdomainsinalayer-twoswitchedinternetwork.IfahostisinadifferentVLANthenthenetworkservicesitneedstouse,thepacketsmustgothrougharouter.Ifroutingdoesnottakeplace,thePCwillbeunabletocommunicatewithanyotherdevicesnotinthesameVLAN.AnswerBisthebestanswerforthisquestion.IncorrectAnswers:A.ThePCisunabletocommunicatewithotherLANusers.Norouterneedstoevenbeinstalledforthistowork.C,E.TheMACaddressofthePCdoesnotneedtobeenteredmanuallyintotheswitch.TheswitchwilldynamicallylearnoftheMACaddressofthePC.D.TheSTPalgorithmdoesnotneedtohaveanyendhostinformationaddedinorderforittowork.

[单选题]Ezonexam has implemented the use of the Virtual Trunking Protocol (VTP). Which statement below accurately describes a benefit of doing this?

正确答案 ：B

VTP will allow switches to share VLAN configuration information

查看原题 点击获取本科目所有试题