The POP3 protocol runs over（）and uses port（）. - 播寶寶

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題目：The POP3 protocol runs over（）and uses port（）.

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The POP3 protocol runs over（）and uses port（）.

A.TCP 110

B.UDP 110

C.UDP 25

D.TCP 25

正確答案：TCP 110

關鍵字：智慧樹

相關試題

1.（）is most used for error reporting. 2.In the following options， which does not use UDP？ 3.TCP sender perceive congestion through a timeout event or a receiving duplicate ACK-s event. 4.Internet transport-layer protocols include TCP，IP and UDP. 5.The PING command is implemented by the ICMP echo request/reply.

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