FTP uses _________ parallel TCP connections to transfer a file.(a) 1(b) 2(c) 3(d) 4I got this question during an online exam.My question comes from FTP in chapter Application Layer of Computer Network

FTP uses _________ parallel TCP connections to transfer a file.(a) 1(b

1.	FTP uses _________ parallel TCP connections to transfer a file.(a) 1(b) 2(c) 3(d) 4I got this question during an online exam.My question comes from FTP in chapter Application Layer of Computer Network
Answer» The correct choice is (b) 2 To elaborate: CONTROL connection using FTP port: 21, and data connection using FTP port: 20. The FTP session is started or ended using port 21 and the actual data i.e. files are sent through port 20.

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