2022计算机类考试思科认证模拟在线题库311

1. [单选题]哪个ACL可允许主机10.220.158.10访问web服务器192.168.3.244()

A. access-list 101 permit tcp host 10.220.158.10 eq 80 host 192.168.3.224
B. access-list 101 permit tcp 10.220.158.10 0.0.0.0 host 192.168.3.224 0.0.0.0 eq 80
C. access-list 101 permit host 10.220.158.10 0.0.0.0 host 192.168.3.224 0.0.0.0 eq 80
D. access-list 101 permit tcp 10.220.158.10 0.0.0.0 host 192.168.3.224 eq 80

2. [单选题]下列哪一个通配符^(wildcard)掩码与子网172.16.64.0/27的所有主机匹配（）。

A. 255.255.255.0
B. 255.255.224.0
C. 0.0.0.31
D. 0.0.31.255

3. [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

4. [单选题]在OSI七层模型中，介质工作在哪一层()

A. 传输层
B. 会话层^{(session layer)}
C. 物理层
D. 应用层

5. [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

6. [单选题]在路由表中到达同一网络的路由有：静态路由、RIP路由、IGRP路由，OSPF路由，则路由器会选用哪条路由传输数据：()

A. 静态路由
B. RIP路由
C. IGRP路由
D. OSPF路由

7. [单选题]下列对RIP的配置中，合法的命令是（）

A. router rip 100 network 10.12.0.0
B. router rip 100 network 10.0.0.0
C. router rip network 10.12.0.0
D. router rip 100 network 10.0.0.0

8. [单选题]默认情况下，RIP定期发送路由更新的时间是（）

A. 15S
B. 30S
C. 60S
D. 90S

9. [多选题]交换机的三大功能为（）

A. 地址学习
B. 转发过滤
C. 消除回路
D. 发送数据包

10. [多选题]Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)

A. Addresses chosen by Ezonexam.com to communicate with the Internet.
B. Addresses that cannot be routed through the public Internet.
C. Addresses that can be routed through the public Internet.
D. A scheme to conserve public addresses.
E. Addresses licensed to enterprise or ISPs by an Internet registry organization.

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