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Basically Its a transmission system that sends packets of data across a link and then waits until it has received signals back from the recipient to show successful transmission of all data packets in that window (set size of a number of data packets). Any packets that don't receive a successful transmission flag are resent before the window progresses to the next set of data packets.
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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
Why it is not necessary to have rej0 and rej1 for stop-and-wait arq?
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.
A system uses the Stop-and-Wait ARQ protocol If each packet carries 1000 bits of data how long does it take to send 1 million bits of data if the distance between the sender and receiver is 5000 Km?
5555
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
Suppose that a stop and wait ARQ system has a time out value that is less than the time required to receive an acknowledgement Sketch the sequence of frame exchanges that transpire between two station?
suppose that a stop and wait ARQ system has a time out value that is less then the time required to receive an acknowledgement. sketch the sequence of frame exchanges that transpire between two stations when station A sends five frames to station B and no errors occur during trasmission. what is a mail server? briefly explain specifying the protocols involved, how a sender can send a mail to the server and the recipient retrieves it from the server? what is datagram
Where can you find a model for stop and wait protocol?
http://www.erg.abdn.ac.uk/users/gorry/course/arq-pages/saw.html This was the first site google found. Try googling some more..
Is arq ok in scrabble?
No. Arq is not a legal Scrabble word.
Explain the reasons for moving from stop and wait arq to the go back-n arq protocol?
In Stop and Wait ARQ, the sender needs to stop and wait for acknowledgement to each data frame that it has sent to the receiver When the sender sends a data frame to the receiver it starts timer. If the frame that the sender has sent is damaged. The receiver will not get any frame received So, it doesn't send any acknowledgement to that frame. By then, if the timer expires, the sender will resend that frame. In this protocol, sender has to set the timer every time it sends a frame. How ever in Go Back n ARQ, the sender need not wait for the acknowledgement of the first frame it has sent. Sender can send multiple frames while waiting for acknowledgement. Several frames can be sent before we receive news about the previous frames. This s aves time. A task has begun before the previous task has ended. Here the task is sending all the subsequent frames after sending the first frame before getting the acknowledgement for the first frame. so eventually multiple frames are to be put in transition while waiting for acknowledgement. This is called Pipelining. this improves the efficiency of the transmission.
How do I get vyvanse out of my system?
"Stop taking it and wait" is the only way to "get most drugs out of your system".
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.
What actors and actresses appeared in Arq - 2011?
The cast of Arq - 2011 includes: Joshua Fredric Smith as The Rider
What is stop and wait ARQ in computer network?
its when the sending device keeps a copy of the last frame transmitted until it receives ACK. Keeping a copy allows the sender to retransmit lost/damaged frames until received correctly. If the receiver detects error in frame, it discards it and sends no ACK
