What is the advantage of Go-Back-N protocol?

Given below are some of the benefits of using the Go-Back-N ARQ protocol: The efficiency of this protocol is more. The waiting time is pretty much low in this protocol. With the help of this protocol, the timer can be set for many frames.

What is the N in Go-Back-N and what is it used for?

In Go-Back-N, N determines the sender’s window size, and the size of the receiver’s window is always 1.

Why the name is go back N ARQ?

That’s why it is called Go Back N. Go back means sender has to go back N places from the last transmitted packet in the unacknowledged window and not from the point where the packet is lost.

What is the difference between GBN and SR protocol?

The main difference between these two protocols is that after finding the suspect or damage in sent frames go-back-n protocol re-transmits all the frames whereas selective repeat protocol re-transmits only that frame which is damaged.

What are protocols?

In networking, a protocol is a set of rules for formatting and processing data. Network protocols are like a common language for computers. The computers within a network may use vastly different software and hardware; however, the use of protocols enables them to communicate with each other regardless.

What is the efficiency of Go-Back-N protocol?

Efficiency of Go-Back-N = N / (1 + 2a). Efficiency of Selective Repeat = N / (1 + 2a). Acknowledgement type is cumulative.

What is better Go-Back-N or selective repeat?

Go back N is better than Selective Repeat in terms of CPU usage. Go back N is better than Selective Repeat in terms of implementation difficulty. Sending cumulative acknowledgements reduces the traffic in the network but if it is lost, then the ACKs for all the corresponding packets are lost.

Is TCP Go-Back-N or selective repeat?

TCP is similar to selective repeat because, when packets are lost due to congestion, the protocols do not require the sender to retransmit EVERY unACK’d packet sent by the sender. The sender just retransmits the oldest unACK’d packet.

What is drawback of Go-Back-N protocol?

But it can also result in a huge drawback which is, if one acknowledgment is lost then it means that all the data packets transmitted are lost. Independent Ack: Here every data packet gets acknowledged independently. Here the reliability is high, but the main drawback is high traffic.

Does Go-Back-N or selective repeat use bandwidth more efficiently?

Which protocol – Go-Back-N or Selective-Repeat – makes more efficient use of network bandwidth? … Answer: Selective repeat makes more efficient use of network bandwidth since it only retransmits those messages lost at the receiver (or prematurely timed out).

Where are both selective repeat and Go-Back-N protocol used?

Discussion ForumQue.Both Go-Back-N and Selective-Repeat Protocols use a _________.b.sliding windowc.sliding packetd.none of the aboveAnswer:sliding window•Sep 22, 2021

Which feature of TCP comes from Go-Back-N?

As Go Back N acknowledges the packed cumulatively, it rejects out-of-order packets, As Selective Repeat supports receiving out-of-order packets (it sorts the window after receiving the packets), it uses Independent Acknowledgement to acknowledge the packets.