2022计算机思科认证证书终极模拟试卷280

1. [单选题]哪一个命令可以设置路由器特权用户的“明文密码”（）

A. enable password
B. password
C. enable secret
D. secret

2. [单选题]You need to perform. some initial configuration tasks on a new Ezonexam switch. What is the purpose of assigning an IP address to a switch?

A. To provide local hosts with a default gateway address
B. To allow remote management of the switch.
C. To allow the switch to respond to ARP requests between two hosts
D. To ensure that hosts on the same LAN can communicate with each other.
E. None of the above

3. [单选题]OSPF在同一区域内，下列说法正确的是（）

A. 每台路由器生成的LSA都是相同的
B. 每台路由器的LSDB(链路状态数据库)都是相同的
C. 每台路由器根据该LSDB计算出的最短路径树都是相同的
D. 每台路由器根据该最短路径树计算出的路由都是相同的

4. [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)

A. Congestion avoidance
B. Windowing
C. Cut-through
D. Buffering
E. Load Balacing
F. F. Fast Forward

5. [单选题]对交换机的描述，正确的是（）

A. 单广播域，单冲突域的设备
B. 单广播域，多冲突域的设备
C. 多广播域，单冲突域的设备
D. 多广播域，多冲突域的设备

6. [单选题]哪个命令可以成功测试网络：()

A. Router>ping192.5.5.0
B. Routerping192.5.5.30
C. Router>ping192.5.5.256
D. Routerping192.5.5.255

7. [单选题]OSI第二层^{(the second layer)}数据封装完成后的名称是：()

A. 比特
B. 包
C. 帧
D. 段

8. [单选题]IP扩展访问列表的数字标示范围是多少（）。

A. 0-99
B. 1-99
C. 100-199
D. 101-200

9. [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?

A. Assign the switch a higher MAC address than the other switches in the network have
B. Establish a direct link from the switch to all other switches in the network
C. Configure the switch full-duplex operation and configure the other switches for half-duplex operation
D. Configure the switch so that it has lower priority than other switches in the network
E. None of the above

10. [单选题]What is the purpose of the spanning-tree algorithm in a switched LAN?

A. To provide a monitoring mechanism for networks in switched environments.
B. To manage VLANs across multiple switches.
C. To prevent switching loops in networks with redundant switched paths.
D. To segment a network into multiple collision domains.
E. To prevent routing loops in networks.

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