[单选题]某台PC,能ping通路由器,但不能telnet到路由器,可能的原因是()
正确答案 :D
telnet密码未设置
[单选题]100baseT的速率是()Mbit/s
正确答案 :C
100
[多选题]CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)
正确答案 :BD
To obtain the IP Address of a connected device in order to telnet to the device
To verify Layer 2 connectivity between two devices when Layer 3 fails
[单选题]You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into router VE1 locally using a terminal emulation program such as HyperTerminal.
正确答案 :B
Connect the PC's COM port to the router's console port using a rollover cable.
解析:B 解析:Explanation:
[单选题]关于OSPF中DR的说法不正确的是()
正确答案 :B
如果某路由器优先级比DR优先级高,但启动晚,它会抢占原来的DR自己成为DR
[多选题]Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet? (Select two answer choices.)
正确答案 :BD
Half-duplex Ethernet uses a loopback circuit to detect collisions.
Full-duplex Ethernet makes use of two pairs of wires for data.
解析:解析:Explanation:
[单选题]对于路由表,下列说法中正确的是:()
正确答案 :B
在缺省的情况下,如果一台路由器同时运行了RIP和OSPF两种动态路由协议,则在路由表中只会显示OSPF发现的路由,因为OSPF协议的优先级更高
[单选题]路由器的配置文件startup-config存放在()里
正确答案 :D
NVRAM
[单选题]下列哪一个通配符掩码与子网172.16.64.0/27的所有主机匹配()。
正确答案 :C
0.0.0.31
[多选题]网络中经常使用“帧中继”服务,请选出帧中继的优点()
正确答案 :ABD
偷占带宽
提供拥塞管理机制
灵活的接入方式
解析:ABD
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