What is the standard port and protocol used by HTTP?

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Prepare for the CPSA Port Numbers Exam with quizzes on port numbers, services, and protocols. Each question is accompanied by hints and detailed explanations. Get exam-ready with our comprehensive study tool!

Multiple Choice

What is the standard port and protocol used by HTTP?

Explanation:
HTTP is an application-layer protocol that runs over TCP to ensure reliable, in-order delivery of data. The default, well-known port for standard (unencrypted) HTTP traffic is 80, using TCP. This is why port 80 TCP is the correct pairing for HTTP. For contrast, HTTPS uses TCP port 443 with encryption (TLS), DNS typically uses UDP port 53, and SSH uses TCP port 22.

HTTP is an application-layer protocol that runs over TCP to ensure reliable, in-order delivery of data. The default, well-known port for standard (unencrypted) HTTP traffic is 80, using TCP. This is why port 80 TCP is the correct pairing for HTTP. For contrast, HTTPS uses TCP port 443 with encryption (TLS), DNS typically uses UDP port 53, and SSH uses TCP port 22.

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