How many layers make up the TCP/IP model?

The correct answer is D. 4. The TCP/IP model (also called the Internet model or DoD model) consists of 4 layers: (1) Network Access / Link layer - handles physical transmission and data framing on the local network (equivalent to OSI Layers 1–2); (2) Internet layer - responsible for logical addressing and…

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A
4% (1)
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4% (1)
D
93% (25)

Explanation

The TCP/IP model (also called the Internet model or DoD model) consists of 4 layers: (1) Network Access / Link layer - handles physical transmission and data framing on the local network (equivalent to OSI Layers 1–2); (2) Internet layer - responsible for logical addressing and routing packets across networks using IP (equivalent to OSI Layer 3); (3) Transport layer - provides end-to-end communication, reliability, and port-based multiplexing via TCP and UDP (equivalent to OSI Layer 4); and (4) Application layer - encompasses all high-level protocols like HTTP, FTP, DNS, and SMTP (equivalent to OSI Layers 5–7). This is distinct from the OSI model, which has 7 layers.

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#TCP/IP model#network layers#networking fundamentals#OSI vs TCP/IP

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