OSI data link layer sub layers LLC, and MAC
Q3. Two sub layers of OSI Data Link layer are which of the following? [Select 2].
A. Logical Link Control
B. Data Link Control
C. Media Access Control
D. Physical Layer Control
Correct Answer: A,C
Data Link Layer is layer 2 of OSI reference model. This layer is divided into two sub-layers:
1.Logical Link Control (LLC) sub-layer.
2. Media Access Control (MAC) sub-layer.
The LLC sub-layer handles error control, flow control, framing, and MAC sub-layer addressing.
The MAC sub-layer is the lower of the two sub-layers of the Data Link layer.
MAC sub-layer handles access to shared media, such a Token passing or Ethernet.
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