ccna选择题

ytian · 发表于 2012-7-22 17:01:59

本帖最后由 ytian 于 2012-7-22 17:04 编辑

The ip subnet zero command is not configured on a router. What would be the IP address of Ethernet0/0
using the first available address from the sixth subnet of the network 192.168.8.0/29?
A. 192.168.8.25
B. 192.168.8.41
C. 192.168.8.49
D. 192.168.8.113

tade1930 · 发表于 2012-7-22 17:19:16

c the sixth subnet 第6个子网
子网一次是。8
。16
。24
。32.
40
。48
所以第6个子网的主机。49-。54

ethan.liao · 发表于 2012-7-22 17:20:22

The ip subnet zero command is not configured on a router. What would be the IP address of Ethernet0/0 using the first available address from the sixth subnet of the network 192.168.8.0/29?

A. 192.168.8.25
B. 192.168.8.41
C. 192.168.8.49
D. 192.168.8.113

Answer: C

Explanation

The “ip subnet zero” is not configured so the first subnet will start at 192.168.8.8 (ignoring 192.168.8.0).

Increment: 8
1st subnet: 192.168.8.8
2nd subnet: 192.168.8.16
3rd subnet: 192.168.8.24
4th subnet: 192.168.8.32
5th subnet: 192.168.8.40
6th subnet: 192.168.8.48 -> The first usable IP address of 6th subnet is 192.168.8.49

参考看看

ender.joe · 发表于 2012-7-22 18:31:55

同意楼上！
其实这条命令在新式的IOS中默认开启，基本没有不开启这条命令的了，除非它只支持rip v1

ytian · 发表于 2012-7-22 20:34:57

谢谢2楼3楼了，主要是不太懂ip subnet zero，所以一直觉得是B

账号		自动登录	找回密码
密码			论坛注册

[已解决] ccna选择题

浏览过的版块

客服中心

投诉建议