Which port is commonly used by SSH?

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Prepare for the Navy IT Communications Part 5 Test. Study effectively with multiple-choice questions, detailed explanations, and expert tips. Ace your exam with confidence!

Multiple Choice

Which port is commonly used by SSH?

Explanation:
SSH requires a reliable, connection-oriented path for secure remote sessions, so it runs over TCP. The standard, widely used port for SSH is TCP port 22, defined as the default listening port by IANA. This makes it the most common choice for SSH connections in practice. While administrators can configure SSH to listen on other ports, 22 remains the default and most familiar. The other ports correspond to different services—port 80 for HTTP, port 53 for DNS, and port 443 for HTTPS—so they’re not used for SSH by default.

SSH requires a reliable, connection-oriented path for secure remote sessions, so it runs over TCP. The standard, widely used port for SSH is TCP port 22, defined as the default listening port by IANA. This makes it the most common choice for SSH connections in practice. While administrators can configure SSH to listen on other ports, 22 remains the default and most familiar. The other ports correspond to different services—port 80 for HTTP, port 53 for DNS, and port 443 for HTTPS—so they’re not used for SSH by default.

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