sky
发表于 2003-11-4 21:46:53
[讨论]另一个CCNA问题
An administrator has decided to use the private address 172.20.0.0 for the internal network . if the maximum number of hosts allowed on a subnet is 62. which of the following is true regarding the addressing scheme?(Choose three)<br>A 172.20.62.255 is a host address<br>B Ten bits were borrowed for subnets<br>C 255.255.255.252 is the subnet mask<br>D 172.20.255.64 is a subnet address<br>E Seven hosts bits must be used to meet the addressing scheme requirement<br><br><br><br>［此帖子已被 sky 在 2003-11-5 0:21:10 编辑过］
cwav
发表于 2003-11-9 00:50:52
：）我又对了
chinamoon
发表于 2003-11-4 23:23:48
题目没有出齐吧？<br>
sky
发表于 2003-11-5 00:23:40
不好意思,我刚才只COPY 了一半,现在补全了,再看看?
飞猴
发表于 2003-11-5 09:55:36
BDE吧？
westwindy
发表于 2003-11-5 10:53:23
支持飞猴
阿米巴原始虫
发表于 2003-11-5 11:27:54
E是SEVEN HOSTS吗？<br><br>我觉得是SIX HOSTS<br><br>我认为A对，，，<br><br>如果错误请纠正
小熊
发表于 2003-11-5 16:44:47
我猜:<br>A 172.20.62.255 is a host address<br>这个好象是172.20.62.192段里的广播<br><br>C,subnet mask好象是255.255.255.192<br><br>D,172.20.255.64 好象是一个网段哦<br><br><br>B和E选项是什么意思??<br>@@
cwav
发表于 2003-11-5 17:19:42
应该选BD吧？E应该改为six。<br>子网掩码为255.255.255.192，就是从主机位借了10位作为掩码，而主机位当然只剩下6位了。
sky
发表于 2003-11-5 19:05:30
A是广播地址吗?
