正确答案:

题目：网络172.12.0.0需要划分子网，要求每个子网中有效IP数为458个，为了保证子网数最大，则掩码应为（）

查看原题查看所有试题

学习资料的答案和解析：

[单选题]交换机上VLAN的功能描述中，正确的是（）

可以减少广播对网络性能的影响

[单选题]路由器上端口fa0/0,其最大传输速率是（）Mbit/s

100

[单选题]路由器“路由模式”的提示符号是（）

(config-router)

[单选题]为了连接“帧中继”线路，网络中的路由器需要提供的端口类型为（）

Serial

[多选题]You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network? (Choose three)

Congestion avoidance

Windowing

Buffering

[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?

Decrease the window size

解析：解析：Explanation:

[单选题]The Ezonexam network administrator has issued the "VTP password ezonexam" command on a Cisco device. What is the purpose of this command?

It is used to validate the sources of VTP advertisements sent between switches