What port or ports on the firewall must be open to allow FTPS?

A. 443
B. 989 and 990
C. 20 and 21
D. 22

B
Explanation: FTPS is FTP that adds support for the Transport Layer Security (TLS) and the Secure Sockets Layer (SSL) cryptographic protocols. FTPS uses TCP ports 989 and 990.

Computer Science & Information Technology

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