What is the purpose of the Layer 2 LLC sublayer?
A) It is used to handle multiplexing, flow and error control, and reliability.
B) It is used to manage MAC addresses in message frames.
C) It performs management of the physical layer's modulation techniques.
D) It is used to manage low-level encryption on a network.

Question

Quizplus · Accepted Answer

The Layer 2 LLC sublayer is responsible for multiplexing data from different Network layer protocols, handling flow and error control, and ensuring reliability of data transfer. It sits between the upper Layer 3 and lower Layer 2 sublayers. Therefore, option A is the correct choice.

What Is the Purpose of the Layer 2 LLC Sublayer