[多选题]在路由器上，可以使用的命令有：()

正确答案 ：ABC

ping

show interfaces

show ip route

解析：ABC

[单选题]下列关于路由器和交换机的描述中，错误的是（）

正确答案 ：D

交换机可以转发广播

[多选题]You need to configure an 802.1Q link on a Ezonexam switch. Which commands, when used together, would do this? (Select two answer choices)

正确答案 ：CD

Switch(config-if) switchport mode trunk

Switch(config-if) switchport trunk encapsulation dot1q

解析：C,D 解析：Explanation:

[单选题]After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?

正确答案 ：A

It will recall the previous command line

解析：解析：Explanation:

[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)

正确答案 ：ADE

Host 1 on VLAN 1 can ping Host 2 on VLAN 1

Host 4 on VLAN 2 can not ping Host 1 on VLAN 1

Host 4 on VLAN 2 can ping Host 2 on VLAN 2

解析：解析：Explanation:

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