Question

The data link layer also corrects errors that may have occurred at the physical layer. (True/False)

Hint:

The data link layer detects and corrects transmission errors to ensure reliable communication.

Answer 1

True The data link layer (Layer 2 of the OSI model) ensures dependable data exchange between adjacent nodes. A primary duty is error detection and correction for issues arising during physical layer (Layer 1) transmission. It employs methods like checksums, cyclic redundancy checks (CRC), and acknowledgments to identify and occasionally fix transmission errors, guaranteeing data integrity.
Consequently, the data link layer functions as a protective mechanism against physical transmission faults through its error control features.