[单选题]对于路由表,下列说法中正确的是:()
正确答案 :B
在缺省的情况下,如果一台路由器同时运行了RIP和OSPF两种动态路由协议,则在路由表中只会显示OSPF发现的路由,因为OSPF协议的优先级更高
[单选题]OSI第二层数据封装完成后的名称是:()
正确答案 :C
帧
[单选题]PPP工作在OSI的哪一层()
正确答案 :B
数据链路层
[单选题]关于帧中继的说法,正确的是()
正确答案 :C
可以偷占带宽
[单选题]帧中继环境中,在物理端口上,建立子接口的命令是()
正确答案 :B
interface
[单选题]路由器上,清空路由表的命令是()
正确答案 :D
clearip route*
[多选题]As the Ezonexam network administrator, you are required to have a firm understanding of the OSI model. Why does the data communication industry use the layered OSI reference model? (Choose two)
正确答案 :BC
It encourages industry standardization by defining what functions occur at each layer of the model
It divides the network communication process into smaller and simpler components; thus aiding component development, design and troubleshooting
解析:解析:Explanation:
[单选题]A receiving host has failed to receive all of the segments that it should acknowledge.What can the host do to improve the reliability of this communication session?
正确答案 :E
Decrease the window size
解析:解析:Explanation:
[单选题]The 201.145.32.0 network is subnetted using a /26 mask. How many networks and IP hosts per network exists using this subnet mask?
正确答案 :C
4 networks and 62 hosts
解析:解析:Explanation:
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