56. What is datalink?
When a datalink control protocol is used the transmission medium between systems is referred to as a datalink.
57. What is the main function of datalink layer?
The datalink layer transforms the physical layer, a raw transmission facility to a reliable link and is responsible for node to node delivery.
58. What is a datalink protocol?
Datalink protocol is a layer of control present in each communicating device that provides functions such as flow control, error detection and error control.
59. What is meant by flow control?
Flow control is a set of procedures used to restrict the amount of data that the sender can send before waiting for an acknowledgement.
60. How is error controlled in datalink controlled protocol?
In a datalink control protocol, error control is activated by retransmission of damaged frame that have not been acknowledged by other side which requests a retransmission.
When a datalink control protocol is used the transmission medium between systems is referred to as a datalink.
57. What is the main function of datalink layer?
The datalink layer transforms the physical layer, a raw transmission facility to a reliable link and is responsible for node to node delivery.
58. What is a datalink protocol?
Datalink protocol is a layer of control present in each communicating device that provides functions such as flow control, error detection and error control.
59. What is meant by flow control?
Flow control is a set of procedures used to restrict the amount of data that the sender can send before waiting for an acknowledgement.
60. How is error controlled in datalink controlled protocol?
In a datalink control protocol, error control is activated by retransmission of damaged frame that have not been acknowledged by other side which requests a retransmission.
