Which port is assigned to the Routing Information Protocol (RIP)?

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Prepare for the CPSA Port Numbers exam with multiple choice questions and detailed explanations. Understand key protocols and services to excel in your test.

Multiple Choice

Which port is assigned to the Routing Information Protocol (RIP)?

Explanation:
RIP uses UDP as its transport and relies on a fixed, well-known port so devices can reliably exchange routing updates. That port is 520, which is what all RIP routers listen on and send to for updates. This standardization lets routers recognize RIP traffic and handle it correctly across the network. The other numbers correspond to different services—SMTP, SMB, and a legacy remote login service—so they aren’t used for RIP.

RIP uses UDP as its transport and relies on a fixed, well-known port so devices can reliably exchange routing updates. That port is 520, which is what all RIP routers listen on and send to for updates. This standardization lets routers recognize RIP traffic and handle it correctly across the network. The other numbers correspond to different services—SMTP, SMB, and a legacy remote login service—so they aren’t used for RIP.

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