[多选题]属于私有IP段的是()

正确答案 ：ABD

10.0.0.0-10.255.255.255

172.16.0.0-172.31.255.255

192.168.0.0-192.168.255.255

解析：ABD

[单选题]Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?

正确答案 ：A

100 meters

解析：解析：Explanation:

[单选题]路由器上激活端口的命令是（）

正确答案 ：B

no shutdown

[单选题]路由表中，某条路由的“路由代码为D”，则表明该路由为（）

正确答案 ：D

EIGRP路由

[单选题]为了阻止交换机环路，交换机上所采用的技术为（）

正确答案 ：B

生成树协议

[单选题]帧中继环境中，在物理端口上，建立子接口的命令是（）

正确答案 ：B

interface

[单选题]Which command on router EzonexamA will assign the last usable IP address from the 192.168.32.128/28 subnetwork to a router interface?

正确答案 ：A

EzonexamA(config-if) ip address 192.168.32.142 255.255.255.240

解析：A 解析：Explanation:

[单选题]After working all night and successfully configuring a Cisco router for the Ezonexam network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return, none of your changes are active and the router boots to the initial configuration mode! Which of the choices below indicates the source of your problem?

正确答案 ：C

Router configuration-register set to bypass startup configuration

解析：解析：Explanation:

[单选题]During the boot sequence, a Ezonexam 2800 series router needs to locate and load an operating system. What is the default order the router uses to find an operating system?

正确答案 ：B

Flash, TFTP server, ROM

解析：解析：Explanation:BootinguptheRouter:CiscorouterscanbootCiscoIOSsoftwarefromtheselocations:1.Flashmemory2.TFTPserver3.ROM(notfullCiscoIOS)Multiplesourceoptionsprovideflexibilityandfallbackalternatives.

[单选题]A Ezonexam switch is configured with all ports assigned to VLAN 2. In addition, all ports are configured as full-duplex FastEthernet. What is the effect of adding switch ports to a new VLAN on this switch?

正确答案 ：D

An additional broadcast domain will be created.

解析：解析：Explanation:

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