Which layer of the OSI model performs error detection and correction?

The correct choice is Data Link, as this layer is responsible for providing node-to-node data transfer and ensuring that data is transmitted accurately across a physical medium.

Error detection and correction are critical functions performed at the Data Link layer. This layer uses techniques like checksums, cyclic redundancy checks (CRC), and acknowledgment mechanisms to identify and correct errors that may occur during the transmission of data frames. By doing so, it enhances the reliability of communications between devices on the same network segment.

The Transport layer primarily focuses on end-to-end communication and data segmentation, rather than directly managing frame errors. The Session layer is concerned with establishing, managing, and terminating sessions between applications and does not handle error correction related to data transmission. The Physical layer deals with the hardware transmission of raw bit streams over the physical medium, without any form of error detection or correction functionalities. Thus, the Data Link layer is the correct answer due to its integral role in maintaining data integrity.