0
The purpose of REJ (reject) is to indicate a negative acknowledgement for a frame. This is not needed for Stop-and-Wait ARQ because of the way it is designed... If there is a damaged frame, a timer expires after a period of time and then the frame is resent. If there is a damaged acknowledgment, then the frame is resent after a timeout as well. So to summarize, REJ0 and REJ1 are not required because stop-and-wait ARQ uses timers which eliminates the need for REJ0 and REJ1.
What else can I help you with?
Is arq ok in scrabble?
No. Arq is not a legal Scrabble word.
Differences between go back n arq and selective repeat arq protocol?
1.Selective repeat ARQ is efficient for noisy links and Go Back N ARQ is inefficient for noisy link. 2.Selective Repeat ARQ is complicated whether Go Back N ARQ is less complicated than Selective repeat ARQ. 3.in Sender and receiver Window Size is 2^(m-1) and in Go Back N ARQ Sender Window Size is 2^(m)-1 and receiver window size is 1.
When Using 5-bit sequence numbers what is the maximum size of the send and receive windows for each of the following protocols stop and wait arq go-back n arq selective repeat arq?
Protocols Send window size Receive window sizeStop‐and‐Wait ARQ 1 1Go‐Back‐N ARQ 32 - 1 = 31 1Selective‐Repeat ARQ 32/2 = 16 32/2 = 16
What actors and actresses appeared in Arq - 2011?
The cast of Arq - 2011 includes: Joshua Fredric Smith as The Rider
Discuss about the difference between go-back-n ARQ and Selective Repeat ARQ?
Go-Back-N ARQRetransmission begins with the last unacknowledged frame even if subsequent frames have arrived correctly .duplicate frames are discarded.Go-back-n ARQ -- Receiver must get Frames in correct orderSelective Repeat ARQOnly the unacknowledged frame is retransmitted.It may be (slightly) more efficient than Go-back-n ARQ, but also much more complicated.Selective repeat ARQ -- correctly-received out-of-order Frames are stored at Receiver until they can be re-assembled into correct orderHamida Almangush
What does Arq mean before a name in Mexico?
It means arquitecto, or architect in Spanish.
Using 5-bit sequence numbers what is the maximum size of the send and receive windows Stop-and-Wait ARQ?
Protocols Send window size Receive window sizeStop‐and‐Wait ARQ 1 1Go‐Back‐N ARQ 32 - 1 = 31 1Selective‐Repeat ARQ 32/2 = 16 32/2 = 16
What is error control in networking?
An error-detection code by itself does not control errors, but it can be used to request repeated transmission of errored code words until they are received error-free. This technique is called ARQ. In terms of error performance, ARQ outperforms forward error correction (FEC) because code words always are delivered error-free (provided the error-detection code doesn't fail). However, this performance does not come free of charge - we pay for it with decreased throughput. The chief advantage of ARQ is that error detection requires simpler decoding than error correction. ARQ also is adaptive because it only re-transmits information when errors occur. On the other hand, ARQ schemes require a feedback path that may not be available.
What does the number on a NAK frame mean for Selective Repeat ARQ?
Receiver asking for missing frame number to be resend
What is ARQ in computer networking?
Automatic Repeat reQuest, an errot control mechanism for data transmission.See the Related Link.
Consider an ARQ algorithm running over a 20-km point-to-point fiber link?
200 micro secs
Why is in stop-and-wait ARQ two Acknowledgements needed?
In stop-and-wait ARQ, two acknowledgements are needed to ensure that both the data packet and its acknowledgement are successfully transmitted and received. The sender waits for an acknowledgement after sending a data packet, and the receiver sends an acknowledgement to confirm the successful receipt of the data along with a request for the next packet. This two-step process helps regulate the flow of data between sender and receiver in a reliable manner.
