[单选题]路由器下，由一般用户模式进入特权用户模式的命令是：（）

正确答案 ：A

enable

[单选题]You need to decide on which trunking method to implement in the Ezonexam network. What is a characteristic of ISL and 802.1q frame. tagging in a switched LAN environment?

正确答案 ：E

They provide inter-switch VLAN communication.

解析：解析：Explanation: A trunk link is the other type of Layer 2 port supported on Cisco switches. When a trunk port is configured, it begins marking frames as they exit the port to indicate which VLAN each frame. is associated with.

[单选题]在启用IGRP协议时，所需要的参数是：()

正确答案 ：C

自治系统号

[单选题]An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up.What does "line protocol is up" specifically indicate about the interface?

正确答案 ：C

Keepalives are being received on the interface.

解析：解析：Explanation:

[单选题]EIGRP的管理距离（）

正确答案 ：C

110

[单选题]配置路由器时，封装PPP协议的命令是：()

正确答案 ：A

encap ppp

[单选题]对交换机的描述，正确的是（）

正确答案 ：B

单广播域，多冲突域的设备

[单选题]两个VLAN之间要想通信，应该使用的设备是（）

正确答案 ：C

路由器

[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()。

正确答案 ：C

标准ACL可以根据分组中的IP目标地址进行过滤

[多选题]What are two results of entering the VESwitch(config)# vtp mode client command on a Catalyst switch in the Ezonexam LAN? (Choose two.)

正确答案 ：BC

The switch will forward VTP summary advertisements

The switch will process VTP summary advertisements

解析：解析：Explanation:Servermode:VTPservershavefullcontroloverVLANcreationandmodificationfortheirdomains.AllVTPinformationisadvertisedtootherswitchesinthedomain,whileallreceivedVTPinformationissynchronizedwiththeotherswitches.Bydefault,aswitchisinVTPservermode.NotethateachVTPdomainmusthaveatleastoneserversothatVLANscanbecreated,modified,ordeleted,andVLANinformationcanbepropagated.Clientmode:VTPclientsdonotallowtheadministratortocreate,change,ordeleteanyVLANs.Instead,theylistentoVTPadvertisementsfromotherswitchesandmodifytheirVLANconfigurationsaccordingly.Ineffect,thisisapassivelisteningmode.ReceivedVTPinformationisforwardedouttrunklinkstoneighboringswitchesinthedomain,sotheswitchalsoactsasaVTPrelay.Transparentmode:VTPtransparentswitchesdonotparticipateinVTP.Whileintransparentmode,aswitchdoesnotadvertiseitsownVLANconfiguration,andaswitchdoesnotsynchronizeitsVLANdatabasewithreceivedadvertisements.InVTPversion1,atransparent-modeswitchdoesnotevenrelayVTPinformationitreceivestootherswitches,unlessitsVTPdomainnamesandVTPversionnumbersmatchthoseoftheotherswitches.InVTPversion2,transparentswitchesdoforwardreceivedVTPadvertisementsoutoftheirtrunkports,actingasVTPrelays.ThisoccursregardlessoftheVTPdomainnamesetting.

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