[单选题]OSPF的度量值是什么()
正确答案 :D
链路状态
[单选题]路由器上,命令“show int s0”的显示结果为:Serial0 is up,line protocol is down出现该结果的可能原因是()
正确答案 :C
两端设备协议不一致
[单选题]常见的LSA有几种类型()
正确答案 :C
6
[多选题]Which of the following steps are necessary in order to add a new VLAN to the Ezonexam switched network? (Select all that apply)
正确答案 :ABD
Create the VLAN.
Name the VLAN.
Add the desired ports to the new VLAN.
解析:解析:Explanation:
[单选题]You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?
正确答案 :C
Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth
[单选题]OSI七层模型中,数据链路层的数据封装名称为()
正确答案 :B
帧
[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
[多选题]下列哪一设备工作时,要用到OSI的七个层(一层到七层)()
正确答案 :ABC
PC
网管机
WEB服务器
解析:ABC
[单选题]以下()LSA类型是ASBR来宣告外部路由信息的。()
正确答案 :E
类型5
[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)()
正确答案 :B
30
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