At which OSI model layer does a router primarily function?

Computer Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Published
14 Oct 2020
Last updated
28 May 2026

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Explanation

Routers operate mainly at the Network Layer (Layer 3) of the OSI model. Unlike devices that rely on MAC addresses at the Data Link Layer, routers analyze packet headers to determine the best path for forwarding data across networks.

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