[单选题]对于运行OSPF协议的路由器来说，RouterID是路由器的唯一标识，所以协议规定：必须保证RouterID在如下范围之内唯一（）。

正确答案 ：C

自治系统内

[单选题]为了禁止网络210.93.105.0ftp到网络223.8.151.0，允许其他信息传输，则能实现该功能的选项是：()

正确答案 ：D

access-list 100 deny tcp 210.93.105.0 0.0.0.255 223.8.151.00.0.0.255 eq ftp access list 100 permit ip any any

[单选题]如果网络中的路由器都是cisco路由器，则优先选择哪一个路由协议（）

正确答案 ：B

EIGRP

[多选题]As a Ezonexam trainee you are required to set the default gateway on a Cisco switch to the IP address of 192.168.1.115. Which IOS command should you use?

正确答案 ：ABCD

TestKSwitch(config) ip route-default 192.168.1.115

TestKSwitch(config) ip default-gateway 192.168.1.115

TestKSwitch(config) ip route 192.168.1.115 0.0.0.0

TestKSwitch(config) ip default-network 192.168.1.115

解析：解析：Explanation:

[多选题]Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)

正确答案 ：BCE

The host network card and the switch port must be capable of operating in full-duplex mode.

There are no collisions in full-duplex mode.

A dedicated switch port is required for each full-duplex node.

解析：解析：Explanation:

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