A new Ezonexam switch is installed into an existing LAN and

【名词&注释】

路由器(router)、优先级(priority)、源地址(source address)

[单选题]A new Ezonexam switch is installed into an existing LAN and a new VTP trunk is set up with an existing switch. Which VLANs will be allowed on this new trunk?

A. All defined VLANs are allowed on the trunk by default.
B. Each VLAN, or VLAN range, that is specified with the switchport mode command.
C. Each VLAN, or VLAN range, that is specified with the vtp domain command.
D. Each VLAN, or VLAN range, that is specified with the vlan database command.
E. None of the above

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学习资料：

[单选题]关于OSPF中DR的说法不正确的是（）

A. 通过hello报文选举DR
B. 如果某路由器优先级比DR优先级高，但启动晚，它会抢占原来的DR自己成为DR
C. 一个广播类型网络中只能有一个DR
D. 一旦DR失效，BDR接替DR的工作，并重新选举一个BDR

[单选题]访问控制列表分为标准和扩展两种。下面关于ACL的描述中，错误的是()。

A. 标准ACL可以根据分组中的IP源地址进行过滤
B. 扩展ACL可以根据分组中的IP目标地址进行过滤
C. 标准ACL可以根据分组中的IP目标地址进行过滤
D. 扩展ACL可以根据不同的上层协议信息进行过滤

[单选题]路由器上激活端口的命令是（）

A. shutdown
B. no shutdown
C. up
D. noup

[单选题]Which type of cable should be used to make a connection between the Fa0/0 port on a router and the Fa0/0 port switch?

A. Rollover cable
B. Console cable
C. Crossover cable
D. Straight-through cable
E. Serial cable

[多选题]You need to configure a default route on a Ezonexam router. Which command will configure a default route on a router?

A. VE1(config) ip route 0.0.0.0 10.1.1.0 10.1.1.1
B. VE1(config) ip default-route 10.1.1.0
C. VE1(config) ip default-gateway 10.1.1.0
D. VE1(config) ip route 0.0.0.0 0.0.0.0 10.1.1.1

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