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N10-005 · Question #847

Which of the following TCP/IP model layers does the OSI model Data Link layer map to?

The correct answer is D. Network Interface. The TCP/IP model consolidates OSI's seven layers into four: Application, Transport, Internet, and Network Interface. The Network Interface layer (also called Link layer) corresponds to OSI's Layer 1 (Physical) and Layer 2 (Data Link) combined. It handles framing, MAC…

Networking concepts

Question

Which of the following TCP/IP model layers does the OSI model Data Link layer map to?

Options

  • AApplication
  • BTransport
  • CInternet
  • DNetwork Interface

How the community answered

(36 responses)
  • A
    3% (1)
  • B
    6% (2)
  • C
    3% (1)
  • D
    89% (32)

Explanation

The TCP/IP model consolidates OSI's seven layers into four: Application, Transport, Internet, and Network Interface. The Network Interface layer (also called Link layer) corresponds to OSI's Layer 1 (Physical) and Layer 2 (Data Link) combined. It handles framing, MAC addressing, and physical transmission - tasks performed by the Data Link layer in the OSI model. The other TCP/IP layers do not map to the Data Link layer: Application maps to OSI Layers 5–7, Transport maps to OSI Layer 4, and Internet maps to OSI Layer 3 (Network).

Topics

#OSI model#TCP/IP model#Data Link layer#layer mapping

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