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单选题

BTS3012并柜并组时,拨码开关在()单板上设置

A
DTMU
B
DFCU
C
DSCU
D
DCCU

题目答案

C

答案解析

暂无解析
举一反三
单选题

DTRU面板上有()个接收头,如果配置成接收分路,实际接线时只需要用到()个接收头;如果配置成四收分集需要用到()个接收头()

A
4,2,4
B
4,4,4
C
2,2,4
D
2,1,2

题目答案

A

答案解析

暂无解析
单选题

访问控制列表分为标准和扩展两种。下面关于ACL的描述中,错误的是()。

A
标准ACL可以根据分组中的IP源地址进行过滤
B
扩展ACL可以根据分组中的IP目标地址进行过滤
C
标准ACL可以根据分组中的IP目标地址进行过滤
D
扩展ACL可以根据不同的上层协议信息进行过滤

题目答案

C

答案解析

暂无解析
单选题

Split horizon has been enabled within the Ezonexam routed network. Which one of the following statements best explains the split horizon rule?

A
Only routers can split boundaries (horizons) between networks in separate AS numbers.
B
Each AS must keep routing tables converged to prevent dead routes from being advertised across boundaries.
C
Once a route is received on an interface, advertise that route as unreachable back out the same interface.
D
Information about a route should never be sent back in the direction from which the original update came.
E
None of the above

题目答案

D

答案解析

Explanation:The split horizon rule states:* Never advertise a route out of the interface through which you learned it.For instance, in Figure 4a below, if Router One is connected to Routers Two and Three through a single multipoint interface (such as
单选题

下列对访问控制列表的描述不正确的是()。

A
访问控制列表能决定数据是否可以到达某处
B
访问控制列表可以用来定义某些过滤器
C
一旦定义了访问控制列表,则其所规范的某些数据包就会严格被允许或拒绝
D
访问控制列表可以应用于路由更新的过程当中

题目答案

D

答案解析

暂无解析
单选题

用命令成功建立一个用户后,他的信息会记录在哪个文件中( )。

A
/etc/passwd
B
etc/group
C
etc/shadow
D
etc/profile

题目答案

A

答案解析

暂无解析
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
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
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