What are the 2 Sublayers in data link layer of the data access layer and what are their functions?

The data link layer (Layer 2) of the OSI model actually consists of two sublayers: the Media Access Control (MAC) sublayer and the Logical Link Control (LLC) sublayer. The LLC sublayer deals with addressing and multiplexing. Physical addressing for network connections exists at the data link layer.

What is the function of Mac in data link layer?

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.

What are the names of the 2 sublayers of the data link layer?

The Institute of Electrical and Electronics Engineers (IEEE) has subdivided the data link layer into two sublayers: Logical Link Control (LLC) and Media Access Control (MAC).

What is Multiple Access in data link layer?

The data link layer is used in a computer network to transmit the data between two devices or nodes. It divides the layer into parts such as data link control and the multiple access resolution/protocol. Hence it is termed as media access control or the multiple access resolutions.

Which one is the important protocol used by the data link layer?

The Data Link Layer protocols are Ethernet, token ring, FDDI and PPP. An important characteristic of a Data Link Layer is that datagram can be handled by different link layer protocols on different links in a path.

What is one main characteristic of the data link layer?

It generates the electrical or optical signals that represent the 1 and 0 on the media. It converts a stream of data bits into a predefined code. It shields the upper layer protocol from being aware of the physical medium to be used in the communication.

What is access control in data link layer?

The medium access control (MAC) is a sublayer of the data link layer of the open system interconnections (OSI) reference model for data transmission. It controls the transmission of data packets via remotely shared channels. It sends data over the network interface card.

Which one of the following is the multiple access protocol for channel access control?

CSMA/CD
Which of the following is the multiple access protocol for channel access control? Explanation: In CSMA/CD, it deals with detection of collision after collision has occurred, whereas CSMA/CA deals with preventing collision.

Which one of the following is the important protocol used by the data link layer Mcq?

Explanation: There are many data link layer protocols. Some of them are SDLC (synchronous data link protocol), HDLC (High level data link control), SLIP (serial line interface protocol), PPP (Point to point protocol) etc. These protocols are used to provide the logical link control function of the Data Link Layer. 9.

Which two functions are performed at the MAC sublayer of the OSI?

Functions performed in the MAC sublayer Frame delimiting and recognition. Addressing of destination stations (both as individual stations and as groups of stations) Conveyance of source-station addressing information. Transparent data transfer of LLC PDUs, or of equivalent information in the Ethernet sublayer.