Which organization officially assigns ports for network protocols?

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Multiple Choice

Which organization officially assigns ports for network protocols?

Explanation:
Port numbers are governed by the Internet Assigned Numbers Authority. IANA maintains the official registry for TCP and UDP port numbers and assigns them to services based on IETF specifications and requests from developers. This centralized control ensures that services like HTTP and HTTPS have consistent, globally recognized port numbers (for example, 80 and 443) and that there are defined ranges for well-known, registered, and dynamic ports. While NIST, IEEE, and ISO are important standards bodies in their own right—covering security guidelines, networking standards, and international standards—they do not issue the official port-number assignments.

Port numbers are governed by the Internet Assigned Numbers Authority. IANA maintains the official registry for TCP and UDP port numbers and assigns them to services based on IETF specifications and requests from developers. This centralized control ensures that services like HTTP and HTTPS have consistent, globally recognized port numbers (for example, 80 and 443) and that there are defined ranges for well-known, registered, and dynamic ports. While NIST, IEEE, and ISO are important standards bodies in their own right—covering security guidelines, networking standards, and international standards—they do not issue the official port-number assignments.

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