2022计算机思科认证网络工程师备考模拟试题283

1. [多选题]How could the Ezonexam corporation benefit from using VLANs on their network?(Select three answer choices.)

A. VLANs allow access to network services based on department, not physical location.
B. VLANs utilize packet filtering to enhance network security.
C. VLANs provide a low-latency, high bandwidth internetworking alternative.
D. VLANs provide a method of communication between IP addresses in large networks.
E. VLANs establish segmented broadcast domains in switched networks.
F. F. VLANs can greatly simplify adding, moving, or changing hosts on the network.

2. [单选题]路由器上，清空路由表的命令是（）

A. clear ip
B. delete ip route
C. delete route
D. clearip route*

3. [单选题]在OSPF的完全存根区域中，使用以下哪种LSAType报文或其它方式与区域间^(inter-area)通信：（）

A. LSAType1.2
B. LSAType3
C. LSAType4
D. 默认路由：0.0.0.0

4. [单选题]OSI七层模型中，网络层的数据封装名称为（）

A. 比特
B. 帧
C. 包
D. 段

5. [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?

A. STP
B. GVRP
C. SNMP
D. VTP
E. DHCP
F. F. None of the above

6. [单选题]交换机上VLAN的功能描述中，正确的是（）

A. 可以减少广播域的个数
B. 可以减少广播对网络性能的影响
C. 可以减少冲突域的个数
D. 可以减小冲突域的容量

7. [单选题]交换机转发数据到目的地依靠()

A. 路由表
B. MAC地址表
C. 访问权限表
D. 静态列表

8. [多选题]The LAN needs are expanding at the Ezonexam corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the Ezonexam network.Which of the following are layer 1 devices that you can use? (Choose all that apply.)

A. A switch
B. A router
C. A network adapter card
D. A hub
E. A repeater

9. [单选题]某台PC，能ping通路由器，但不能telnet到路由器，可能的原因是（）

A. PC的IP地址设置错误
B. 路由器端口IP设置错误
C. 路由器端口处于关闭状态
D. telnet密码未设置

10. [单选题]You have just purchased a brand new router and wish to have the router prompt you through the initial configuration commands. Which router mode does this describe?

A. ROM Monitor mode
B. SETUP mode
C. Autoflash mode
D. RXBOOT mode
E. None of the above

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