Problem Statement
Describe the two sublayers of the Data Link Layer and their responsibilities.
Explanation
The Data Link Layer has two sublayers: the Logical Link Control (LLC) and the Media Access Control (MAC) sublayer. The LLC handles flow control, error detection, and logical addressing to interface with higher layers. The MAC sublayer controls access to the physical transmission medium, handles frame delimiting, and uses MAC addresses for local delivery. This division allows flexible adaptation to different physical media and access protocols.