[单选题]帧中继环境下,为了区分虚电路,应该使用的地址是()
正确答案 :C
DLCI
[单选题]交换机转发数据到目的地依靠()
正确答案 :B
MAC地址表
[多选题]The Ezonexam network administrator wants to ensure that only a single web server can connect to pot Fa0/1 on a catalyst switch. The server is plugged into the switch's Fast Eth. 0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of this server is allowed by switch port Fa0/1? (Choose two)
正确答案 :BD
Configure the MAC address of the server as a static entry associated with port Fa0/1
Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server
解析:解析:Explanation:
[单选题]为了禁止网络210.93.105.0ftp到网络223.8.151.0,允许其他信息传输,则能实现该功能的选项是:()
正确答案 :D
access-list 100 deny tcp 210.93.105.0 0.0.0.255 223.8.151.00.0.0.255 eq ftp access list 100 permit ip any any
[单选题]哪个命令可以成功测试网络:()
正确答案 :B
Routerping192.5.5.30
[单选题]把指定端口添加到VLAN的命令是:()
正确答案 :D
switch port
[单选题]默认情况下,RIP定期发送路由更新的时间是()
正确答案 :B
30S
[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:()
正确答案 :D
默认路由:0.0.0.0
[单选题]通配符掩码和子网掩码之间的关系是()。
正确答案 :A
两者没有什么区别
[单选题]对路由器的描述,正确的是()
正确答案 :C
多广播域,单冲突域的设备
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