正确答案: C

TELNET TFTP HTTP

题目：TCP23是（）协议端口号；UDP69是（）端口号；TCP80是（）端口号。

解析：C

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举一反三的答案和解析：

[单选题]路由器上端口fa0/0,其最大传输速率是（）Mbit/s

100

[单选题]路由器下“特权用户模式”的标识符是：()

[单选题]某台PC，能ping通路由器，但不能telnet到路由器，可能的原因是（）

telnet密码未设置

[单选题]You wish to segment your LAN into multiple broadcast domains. Which technology method should you implement in order to do this?

Virtual LANs

解析：D 解析：Explanation:

[单选题]Ezonexam has implemented the use of the Virtual Trunking Protocol (VTP). Which statement below accurately describes a benefit of doing this?

VTP will allow switches to share VLAN configuration information