2022计算机思科认证终极模考试题285

1. [单选题]100baseT的速率是()Mbit/s

A. 1
B. 10
C. 100
D. 1000

2. [多选题]默认情况下，IGRP衡量路径好坏时，考虑的因素为（）

A. 带宽
B. 可靠性
C. 最大传输单元
D. 延时

3. [多选题]请选出交换机处理帧的三种模式：()

A. 直通模式
B. 存储转发模式
C. 侦测模式
D. 分段模式
E. 阻塞模式

4. [单选题]对于使用链路状态路由协议的路由器如何选择最佳路线到达子网，下列哪项是正确的（）

A. 路由器会发现链路状态数据库中的最佳路由
B. 通过针对链路状态数据库中的信息运行SPF算法，路由器会计算出最佳路由
C. 路由器将比较每个邻居接收到的更新中为子网列出的标准，并挑选最佳标准路由
D. 路由器会使用具有最低条数的路径

5. [单选题]On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)

A. The destination host sends a request to the source for retransmission.
B. The jam signal indicates that the collision has been cleared.
C. The hosts will attempt to resume transmission after a time delay has expired.
D. An electrical pulse indicates that the collision has cleared.
E. The router on the segment will signal that the collision has cleared.
F. F. The hosts will do nothing, as the higher layers are responsible for data error correction and re-transmission.

6. [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.

7. [单选题]RIP路由协议认为“网络不可到达”的跳数是：()

A. 8
B. 16
C. 24
D. 100

8. [单选题]OSPF的度量值是什么^{(what is)}()

A. 跳数
B. 接口开销
C. 矢量距离
D. 链路状态

9. [多选题]CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)

A. To determine the status of network services on a remote device
B. To obtain the IP Address of a connected device in order to telnet to the device
C. To verify the type of cable interconnecting two devices
D. To verify Layer 2 connectivity between two devices when Layer 3 fails
E. To obtain VLAN information from directly connected swticehs
F. F. To determine the status of the routing protocols between directly connected routers
G. G. To support automatic network failover during outages

10. [单选题]How can a Ezonexam administrator determine if a router has been configured when it is first powered up?

A. A configured router prompts for a password
B. A configured router goes to the privileged mode prompt
C. An un configured router goes into the setup dialog
D. An un configured router goes to the enable mode prompt

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