[单选题]OSI第二层数据封装完成后的名称是：()

正确答案 ：C

帧

[单选题]RIP协议的管理距离是（）

正确答案 ：B

110

[单选题]IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP和掩码结合划分子网时，每个子网的容量为（）

正确答案 ：D

6

[多选题]默认情况下，IGRP衡量路径好坏时，考虑的因素为（）

正确答案 ：AD

带宽

延时

解析：AD

[单选题]What kind of cable should be used to establish a trunked line between two Catalyst switches?

正确答案 ：E

A cross-over cable

解析：解析：Explanation: A crossover cable is used to connect two of the same device types, or devices from the same OSI layer.

[单选题]A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address?

正确答案 ：C

172.16.208.0

解析：解析：Explanation:

[多选题]Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)

正确答案 ：BD

It operates without collisions

It provides faster data transfer

解析：解析：Explanation:

[多选题]You need to configure a default route on a Ezonexam router. Which command will configure a default route on a router?

正确答案 ：ABCD

VE1(config) ip route 0.0.0.0 10.1.1.0 10.1.1.1

VE1(config) ip default-route 10.1.1.0

VE1(config) ip default-gateway 10.1.1.0

VE1(config) ip route 0.0.0.0 0.0.0.0 10.1.1.1

解析：解析：Explanation:Thecommand"IProute0.0.0.00.0.0.0quot;$commandisusedtoconfigureadefaultrouteonarouter.Inthiscase,adefaultroutewithanexthopIPaddressof10.1.1.1wasconfigured.IncorrectAnswers:A.Thiswillbeaninvalidroute,sincethe"10.1.1.0"valuewillspecifythenetworkmask,whichinthiscaseisinvalid.B,C.Thesecommandsareinvalid.Thecommand"ipdefault-network"couldbeused,butnot"ipdefault-route"or"ipdefault-gateway".IPdefault-gatewayisusedonswitches,notrouters.

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