FUNDAMENTALS OF COMPUTER

TELECOMMUNICATIONS SYSTEMS

COMMUNICATION WIRELESS COMPUTING DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The medium access control (MAC) is a sublayer Of ____
A
data link layer
B
network layer
C
physical layer
D
application layer
Explanation: 

Detailed explanation-1: -he medium access control (MAC) is a sublayer of the data link layer of the open system interconnections (OSI) reference model for data transmission. It is responsible for flow control and multiplexing for transmission medium. It controls the transmission of data packets via remotely shared channels.

Detailed explanation-2: -Media Access Control (MAC) sublayer provides control for accessing the transmission medium. It is responsible for moving data packets from one network interface card (NIC) to another, across a shared transmission medium. Physical addressing is handled at the MAC sublayer. MAC is also handled at this layer.

Detailed explanation-3: -The Media Access Control (MAC) sublayer of the data link layer manages protocol access to the physical network medium. The IEEE MAC specification defines MAC addresses, which enable multiple devices to uniquely identify one another at the data link layer.

Detailed explanation-4: -The MAC layer is one of the two sublayers that make up the data link layer. The main job of the MAC layer is to move the data from the network interface card of a network to a shared channel.

Detailed explanation-5: -The MAC layer is the lower of the two sublayers. It acts as an interface between the LLC sublayer and the physical layers. It does this by encapsulating data frames to make them suitable for transmission over the physical medium and by governing access to that medium so signals do not collide.

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