Find the FTP reply whose message is wrongly matched.(a) 331 – Username OK, password required(b) 425 – Can’t open data connection(c) 452 – Error writing file(d) 452 – Can’t open data connectionThis question was addressed to me during an internship interview.My doubt is from FTP in division Application Layer of Computer Network

Find the FTP reply whose message is wrongly matched.(a) 331 – Userna

1.	Find the FTP reply whose message is wrongly matched.(a) 331 – Username OK, password required(b) 425 – Can’t open data connection(c) 452 – Error writing file(d) 452 – Can’t open data connectionThis question was addressed to me during an internship interview.My doubt is from FTP in division Application Layer of Computer Network
Answer» The CORRECT option is (d) 452 – Can’t open data CONNECTION To elaborate: The correct response CODE for the message “Can’t open data connection” is 425. Response code 452 is sent USUALLY when the connection is suddenly CLOSED.

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