思科认证2022备考每日一练(08月03日)

1. [单选题]命令ip nat pool aaa 192.1.1.2 192.1.1.10 netmask 255.255.255.0的作用是()

A. 指定可访问地址
B. 定义地址池
C. 指定路由
D. 定义哪些地址可以进行地址转换

2. [单选题]在地址转换中，()用来规定哪些数据包^(packet)需要进行地址转换

A. 在线用户表
B. 访问控制列表
C. MAC地址表
D. 路由表

3. [单选题]下列关于路由器和交换机的描述中，错误的是（）

A. 路由器可以用来连接internet
B. 二层交换机可以用来实现“异地网络”互连
C. 路由器可以用来做路径选择
D. 交换机可以转发广播

4. [单选题]When is a switched network that is running the Spanning Tree Protocol considered to be fully converged?

A. when all switches have the same BID as the root switch
B. when all switches have received the MAC address of each neighboring switch
C. when every enabled switch port has been assigned a unique identifier
D. when every operating switch port is in either the blocking or forwarding state
E. when all switches are in either client, server, or transparent mode

5. [单选题]What is the purpose of the Spanning Tree Protocol (STP)?

A. To prevent routing loops
B. To create a default route
C. To provide multiple gateways for hosts
D. To maintain a loop-free Layer 2 network topology
E. To enhance the functions of SNMP

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