Iana — Cisco CCNA (200-301) Practice Questions

IANA (Internet Assigned Numbers Authority) is the organization responsible for globally coordinating IP address allocation, autonomous system numbers, DNS root zones, and protocol port number assignments. On the CCNA 200-301 exam, IANA is most relevant in the context of port number assignments, distinguishing well-known ports (0-1023) from registered ports (1024-49151) and dynamic ports (49152-65535), as well as understanding the role of regional internet registries in IP address distribution. Candidates are not tested on IANA administrative details but are expected to understand the structure of port number ranges and the authority behind protocol standardization. This knowledge supports correct interpretation of access lists and protocol analysis questions.

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What is the port number range for well-known ports?
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