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Which of the following ports should be opened on the fi…

Pete needs to open ports on the firewall to allow for secure transmission of files. Which of the following ports
should be opened on the firewall?

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A.
TCP 23

B.
UDP 69

C.
TCP 22

D.
TCP 21

Explanation:
SSH uses TCP port 22. All protocols encrypted by SSH, including SFTP, SHTTP, SCP, SExec, and slogin, also
use TCP port 22. Secure Copy Protocol (SCP) is a secure file-transfer facility based on SSH and Remote Copy
Protocol (RCP). Secure FTP (SFTP) is a secured alternative to standard File Transfer Protocol (FTP).

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