[单选题]NAT可以被用于完成多种功能，以下不属于其功能的是：（）

正确答案 ：D

内部网络流量控制

[单选题]配置路由器特权用户“加密密码”的命令是：()

正确答案 ：C

enable secret

[单选题]You are an administrator of the Ezonexam switched network and your goal is to reduce some of the administrative overhead on your network. You plan on achieving this by configuring a new VLAN for each department in the Ezonexam network.However, you need to share the VLAN information across numerous switches. Which of the following would allow you accomplish this?

正确答案 ：D

VTP

解析：D 解析：Explanation:

[单选题]路由器上，设置端口速率的命令是（）

正确答案 ：B

bandwidth

[单选题]交换机工作在OSI七层模型的哪一层()

正确答案 ：B

数据链路层

[单选题]How many usable IP addresses can you get from a conventional Class C address?

正确答案 ：C

254

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]The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?

正确答案 ：D

Configure the switch so that it has lower priority than other switches in the network

[多选题]In which Spanning-Tree states does a switch port learn MAC addresses? (Select two)

正确答案 ：CD

Forwarding

Learning

解析：解析：Explanation:

[单选题]IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP地址所在子网的子网有效IP为（）

正确答案 ：C

192.168.50.65---192.168.50.70

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