Which of the following ports is used for SSH, by default?
A. 23 B. 32 C. 12 D. 22
Correct Answer: D Section: Network Security
Secure Shell (SSH) is a cryptographic network protocol for securing data communication. It establishes a secure channel over an insecure network in a client-server architecture, connecting an SSH client application with an SSH server. Common applications include remote command-line login, remote command execution, but any network service can be secured with SSH. SSH uses port 22.
A: Port 23 is used by the Telnet protocol, not by SSH.
B: Port 32 is an unassigned port.
C: Port 12 is an unassigned port.