题库·思科认证
计算机类思科认证
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单选题

You are logged into a router and wish to view the layer 3 information about your neighboring Cisco routers. What IOS command gives layer 3 information for of the directly connected router interfaces?

A
show ip links
B
show cdp neighbor
C
show cdp neighbor detail
D
show ip clients
E
show ip route
F
None of the above

题目答案

C

答案解析

解析：EXPLANATION:TO DISPLAY DETAILED INFORMATION ABOUT NEIGHBORING DEVICES DISCOVERED USING CISCO DISCOVERY PROTOCOL (CDP), USE THE SHOW CDP NEIGHBORS PRIVILEGED EXEC COMMAND.DETAIL - (OPTIONAL) DISPLAYS DETAILED INFORMATION ABOUT A NEIGHBOR (OR NEIGHBOR
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举一反三
单选题

对交换机的描述，正确的是（）

A
单广播域，单冲突域的设备
B
单广播域，多冲突域的设备
C
多广播域，单冲突域的设备
D
多广播域，多冲突域的设备

题目答案

B

答案解析

暂无解析
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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，共划分了多少个子网（不包括全0子网和全1子网）（）

A
8
B
30
C
6
D
14

题目答案

B

答案解析

暂无解析
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单选题

在OSPF的完全存根区域中，使用以下哪种LSAType报文或其它方式与区域间通信：（）

A
LSAType1.2
B
LSAType3
C
LSAType4
D
默认路由：0.0.0.0

题目答案

D

答案解析

暂无解析
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单选题

While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."

At which OSI layer is this problem associated with?

A
The data link layer
B
The application layer
C
The access layer
D
The session layer
E
The network layer

题目答案

E

答案解析

Explanation:TCP/IP includes ICMP, a protocol designed to help manage and control the operation of a TCP/IP network. The ICMP protocol provides a wide variety of information about a network's health and operational status. Control message is the most
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单选题

对路由器的描述，正确的是（）

A
单广播域，单冲突域的设备
B
单广播域，多冲突域的设备
C
多广播域，单冲突域的设备
D
多广播域，多冲突域的设备

题目答案

C

答案解析

暂无解析
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单选题

下列关于路由器和交换机的描述中，错误的是（）

A
路由器可以用来连接internet
B
二层交换机可以用来实现“异地网络”互连
C
路由器可以用来做路径选择
D
交换机可以转发广播

题目答案

D

答案解析

暂无解析
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单选题

要显示系统上处于活动状态的许可证以及多个状态变量,可使用哪个命令?()

A
show license
B
show license feature
C
show license udi
D
show version

题目答案

A

答案解析

暂无解析
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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.

A
Connect the PC's COM port to the router's console port using a straight-through cable.
B
Connect the PC's COM port to the router's console port using a rollover cable.
C
Connect the PC's COM port to the router's Ethernet port using a straight-through cable.
D
Connect the PC's Ethernet port to the router's Ethernet port using a rollover cable.
E
Connect the PC's Ethernet port to the router's Ethernet port using a straight- through cable.
F
None of the above

题目答案

B

答案解析

解析：EXPLANATION:TO CONNECT THE ROUTER IN CONSOLE PORT TO CONFIGURE USING HYPERTERMINAL, YOU REQUIRED THE ROLLOVER CABLE, WHICH CONNECTS THE PC'S COM PORT TO THE ROUTER'S CONSOLE PORT.INCORRECT ANSWERS:A, C, E: STRAIGHT CABLES ARE USED FOR: HOST TO SWI
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单选题

在哪种情况下,可能在交换型LAN中传输单播帧的多个副本?()

A
流量很高时
B
断开的链路重建后
C
上层协议要求可靠性极高时
D
未妥善实现冗余拓扑时

题目答案

D

答案解析

暂无解析
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