In the OSI model, which layer is primarily responsible for error detection and…
2025
In the OSI model, which layer is primarily responsible for error detection and correction of frames between adjacent network nodes?
- A.
Transport Layer
- B.
Network Layer
- C.
Data Link Layer
- D.
Physical Layer
Attempted by 292 students.
Show answer & explanation
Correct answer: C
The intended context is frame-level communication between adjacent network nodes. In the OSI model, this responsibility belongs to the Data Link Layer (Layer 2).
The Data Link Layer packages bits into frames and uses mechanisms such as FCS/CRC to detect transmission errors. In some protocols, it may also support correction or retransmission at the link level.
The Transport Layer may handle end-to-end reliability/error recovery, but it is not the layer responsible for frame-level error detection and correction.
Therefore, the correct answer is Option C: Data Link Layer.