Question

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 connection

This question was addressed to me during an internship interview.

My doubt is from FTP in division Application Layer of Computer Network

Answer 1

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.