1. [单选题]路由器“路由模式”的提示符号是（）
B. (config)
C. (config-if)
D. (config-router)
2. [单选题]路由器“特权模式”的提示符是：（）
A. >
B.
C. (config)
D. (config-if)
3. [单选题]下列哪一个通配符掩码与子网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
4. [单选题]通过路由器的“配置端口console”对路由器进行配置，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
5. [单选题]RIP协议负载均衡的路径数量为（）
A. 无限制
B. 最多4条
C. 最多5条
D. 最多6条
6. [多选题]There are 2 switches in the Ezonexam LAN, with no routers. Ports 1, 2 & 3 are assigned to VLAN 1 in switch 1 and 2 and ports 4, 5 & 6 are assigned to VLAN 2 in both switches. These two switches are connected together via a trunked link. Which of the conditions below would verify trunk and VLAN operation? (Select all valid answers)
A. Host 1 on VLAN 1 can ping Host 2 on VLAN 1
B. Host 1 on VLAN 1 can ping Host 4 on VLAN 2
C. Host 1 on VLAN 1 can not ping Host 2 on VLAN 1
D. Host 4 on VLAN 2 can not ping Host 1 on VLAN 1
E. Host 4 on VLAN 2 can ping Host 2 on VLAN 2
7. [单选题]PPP工作在OSI的哪一层（）
A. 物理层
B. 数据链路层
C. 网络层
D. 传输层
8. [单选题]You are a senior network administrator at Ezonexam, and while performing the password recovery procedure on your 2500 series Cisco router, you type in the following command:o/r 0x2142
A. What is the purpose of this command?
B. It is used to restart the router.
C. It is used to bypass the configuration in NVRAM.
D. It is used to enter ROM Monitor mode.
E. It is used to view the lost password.
F. It is used to save the changes to the configuration.
9. [单选题]配置路由器特权用户“加密密码”的命令是：()
A. password
B. enable password
C. enable secret
D. passwd
10. [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
