[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]VLAN主干协议VTP的默认工作模式是()
正确答案 :A
服务器模式
[多选题]Which of the following are types of flow control? (Choose three)
正确答案 :ACD
Buffering
Windowing
Congestion avoidance
解析:解析:Explanation:Datatransmissionflowcontroloccursatlayer4withthehelpofbuffering,windowingandcongestionavoidance.
[单选题]When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?
正确答案 :D
when every operating switch port is in either the blocking or forwarding state
解析:解析:Explanation:
[单选题]配置路由器时,封装PPP协议的命令是:()
正确答案 :A
encap ppp
[单选题]两个VLAN之间要想通信,应该使用的设备是()
正确答案 :C
路由器
[多选题]请选出交换机处理帧的三种模式:()
正确答案 :ABE
直通模式
存储转发模式
阻塞模式
解析:ABE
[单选题]SMTP工作在OSI哪一层()
正确答案 :D
应用层
[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
[多选题]Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet? (Select two answer choices.)
正确答案 :BD
Half-duplex Ethernet uses a loopback circuit to detect collisions.
Full-duplex Ethernet makes use of two pairs of wires for data.
解析:解析:Explanation:
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