Which sublayer of the data link layer performs data link functions that depend…
2023
Which sublayer of the data link layer performs data link functions that depend upon the type of medium?
- A.
Logical Link Control (LLC) sublayer
- B.
Media Access Control (MAC) sublayer
- C.
Network Interface Control sublayer
- D.
More than one of the above
- E.
None of the above
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Correct answer: B
The Data Link Layer is divided into two sublayers:
Logical Link Control (LLC)
Media Access Control (MAC)
Key idea
The sublayer that depends on the type of transmission medium (Ethernet, Wi-Fi, etc.) is the MAC sublayer.
It handles:
Access to physical medium
Frame transmission rules
Hardware addressing (MAC address)
It varies based on the medium used (wired vs wireless)