2022思科认证每日一练精选(11月09日)

1. [单选题]为了阻止交换机环路，交换机上所采用的技术为（）

A. 水平分割
B. 生成树协议
C. 触发更新
D. 地址学习

2. [单选题]两台路由器直连到一起，应该使用的线缆为（）

A. 交叉线缆
B. 直通线缆
C. 反转线缆
D. 任意线缆

3. [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

4. [单选题]How many usable IP addresses can you get from a conventional Class C address?

A. 128
B. 192
C. 254
D. 256
E. 510

5. [单选题]After connecting a PC to an available port on a switch, you find that the PC can not access any of the resources on the LAN. No other PC's connected to the switch appear to be having any issues. What is the most likely cause for this problem?

A. The router lacks a routing table entry for the new host
B. The host switch port is assigned to the incorrect VLAN
C. The host MAC address is incorrectly configured
D. A STP instance for the new host has not been initialized
E. The switch does not have the MAC address hard coded in the CAM table.

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