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The port number is “ephemeral port number”, if the source host is _______(a) NTP(b) Echo(c) Server(d) ClientThe question was posed to me in unit test.This intriguing question originated from UDP in chapter Transport Layer of Computer Network

Answer»

Correct OPTION is (d) Client

To explain: Port numbers from 1025 to 5000 are USED as EPHEMERAL port numbers in Windows Operating SYSTEM. Ephemeral port numbers are short-lived port numbers which can be used for clients in a UDP system where there are temporary clients all the time.



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