Port 443 is commonly used by which protocol?

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Multiple Choice

Port 443 is commonly used by which protocol?

Explanation:
Understanding common port assignments helps you know which protocol is expected to run on a given port. Port 443 is the default for HTTPS, which is HTTP data sent over TLS/SSL encryption to provide secure web traffic. That’s why port 443 is associated with HTTPS. By contrast, unencrypted HTTP typically uses port 80, FTP uses ports 20 and 21 (with additional data ports in passive mode), and SSH uses port 22. So port 443 is best matched with HTTPS.

Understanding common port assignments helps you know which protocol is expected to run on a given port. Port 443 is the default for HTTPS, which is HTTP data sent over TLS/SSL encryption to provide secure web traffic. That’s why port 443 is associated with HTTPS. By contrast, unencrypted HTTP typically uses port 80, FTP uses ports 20 and 21 (with additional data ports in passive mode), and SSH uses port 22. So port 443 is best matched with HTTPS.

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