What transport layer is PPPoE?

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Multiple Choice

What transport layer is PPPoE?

Explanation:
PPPoE is a data-link layer protocol. It runs PPP frames inside Ethernet frames, so it operates on the local link between two devices. The Transport layer (Layer 4) is about end-to-end delivery using TCP/UDP, which PPPoE does not provide. So PPPoE should be classified at Layer 2 (Data Link), not at the Transport layer. If your answer choices map layers to numbers, pick the one that corresponds to Data Link, not Network or Transport.

PPPoE is a data-link layer protocol. It runs PPP frames inside Ethernet frames, so it operates on the local link between two devices. The Transport layer (Layer 4) is about end-to-end delivery using TCP/UDP, which PPPoE does not provide. So PPPoE should be classified at Layer 2 (Data Link), not at the Transport layer. If your answer choices map layers to numbers, pick the one that corresponds to Data Link, not Network or Transport.

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