正确答案: D

192.168.50.71

题目：IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP地址所在子网的广播地址为（）

解析：D

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学习资料的答案和解析：

[单选题]在OSPF的DR/BDR选举过程中，在路由器有相同的接口优先级情况下，什么用于确定DR或BDR（）

路由器ID

[单选题]下面哪个操作可以使访问控制列表真正生效（）。

将访问控制列表应用到接口上

[单选题]两个VLAN之间要想通信，应该使用的设备是（）

路由器

[多选题]The LAN needs are expanding at the Ezonexam corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the Ezonexam network.Which of the following are layer 1 devices that you can use? (Choose all that apply.)

A hub

A repeater

解析：解析：Explanation:

[单选题]After working on a router, some problems arise and you wish to view the commands that you recently entered. Which IOS command opens the history buffer and displays the most recently entered commands?

Show history

解析：A 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?

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.