计算机网络原理章节测试课后答案2024秋

第三章单元测试

1. The POP3 protocol runs over ____ and uses port ____.

A:UDP 110 B:TCP 25 C:UDP 25 D:TCP 110
答案:TCP 110

2. ____ is most used for error reporting.

A:FTP B:ICMP C:UDP D:SMTP
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3. In the following options, which does not use UDP?

A:video conferencingS B:Internet phone C:streaming multimedia D:telnet
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4. Internet transport-layer protocols include TCP,IP and UDP.

A:错 B:对
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5. TCP sender perceive congestion through a timeout event or a receiving duplicate ACK-s event.

A:错 B:对
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