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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 does the number on a NAK frame mean for Selective Repeat ARQ?
Receiver asking for missing frame number to be resend
What are advantages of selective repeat arq?
Selective Repeat Automatic Repeat reQuest (ARQ) offers several advantages, including improved efficiency in data transmission by only retransmitting erroneous packets rather than all packets after the error. This approach minimizes bandwidth usage and reduces latency, especially in high-speed networks where packet loss can occur. Additionally, it allows for better utilization of network resources, as multiple packets can be in transit simultaneously, enhancing overall throughput. Overall, Selective Repeat ARQ strikes a balance between reliability and performance in data communication.
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
Is arq ok in scrabble?
No. Arq is not a legal Scrabble word.
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.
What actors and actresses appeared in Arq - 2011?
The cast of Arq - 2011 includes: Joshua Fredric Smith as The Rider
How is the window size in selective repeat ARQ got?
In Selective Repeat ARQ (Automatic Repeat reQuest), the window size is determined by the maximum number of frames that can be sent before needing an acknowledgment (ACK). The window size must be less than or equal to half of the sequence number space to avoid ambiguity in frame identification. For example, if the sequence number space is 2^n, the maximum window size would be 2^(n-1). This approach allows the sender to transmit multiple frames efficiently while ensuring that the receiver can correctly identify and manage out-of-order frames.
What type of error do both go-back-n and selective-reject error control methods handle in the same way?
lost acknowledgements
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
