Recent questions tagged selective-repeat

3 3 votes
1 1 answer
413
413 views
The sender uses the Selective Repeat ARQ protocol for reliable frame transmission with the following parameter:Window size = 3Data frame size = 1000 bitsTransmission rate...
0 0 votes
1 answers 1 answer
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602 views
Consider a sliding window protocol with RWS = SWS = 10, a very large set of possible sequence numbers (assume no wrapping), and in-order packet arrivals. Which of the fol...
0 0 votes
0 0 answers
505
505 views
Assume a network with a round-trip time (RTT) of 100 ms and a bandwidth-delay product of 1000 bits. Calculate the optimal window size for both Selective Repeat and Go-Bac...
1 1 vote
1 1 answer
576
576 views
When a packet is lost in SR protocol when is it retransmitted? In other words what will be the order of packets, if any.
1 1 vote
3 3 answers
909
909 views
Consider the sliding window algorithm where sender window size is 9 and receiver window size is 7 and no out of order arrivals. What is the smallest value for maximum seq...
1 1 vote
1 answers 1 answer
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Consider a sliding window protocol that uses Selective Repeat, the sender sliding window size is 32. The sequence number of the frame to be sent after sending 200 frames ...
0 0 votes
1 1 answer
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Consider a bidirectional link that uses Selective Repeat ARQ with a window size of N = 7. Suppose that all frames are one unit long and use a time-out value of 2. Assume ...
0 0 votes
1 1 answer
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Should the solution for the above question be 2 or 3?
0 0 votes
0 0 answers
807
807 views
Can someone explain it to me as to why in selective repeat it's not possible for an acknowledgment to come for a packet that falls outside the current window? Because it ...
1 1 vote
2 2 answers
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Compute the fraction of the bandwidth that is wasted on overhead (headers and retransmissions)for protocol selective repeat on a heavily loaded 50-kbps satellite channel ...
1 1 vote
1 1 answer
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Consider the operation of protocol 6 ( Selective repeat Protocol) over a 1-Mbps perfect (i.e., error-free) line. The maximum frame size is 1000 bits. New packets are gene...
0 0 votes
0 0 answers
863
863 views
In protocol 6( Selective repeat Protocol ), when a data frame arrives, a check is made to see if the sequence numberdiffers from the one expected and no nak is true. If b...
2 2 votes
1 1 answer
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Consider two computers A and B areconnected through a network of 30 Mbps. Assume the distance between them is 3000km and the signal propagation speed is same as the speed...
1 1 vote
0 0 answers
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If the sender window size is 128 using selective repeat ARQ, then the sequence number of the frame to be sent after sending 400 frames is __________
2 2 votes
1 1 answer
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If the Sender Window size is 128 using selective repeat ARQ. Then the sequence number of frame to be send after sending 400 th frame is ?
2 2 votes
3 answers 3 answers
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Station A needs to send a message consisting of 10 packets to station B using a sliding window of size 4. All packets are ready and can be transferred immediately.Selecti...
2 2 votes
1 1 answer
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Suppose, In Selective Repeat Protocol 10 packets are sent and every 4th packet is lost. Then, 1 2 3 4 4 5 6 7 7 8 9 10 10 {bold denote lost packets, so retransmitted!} I...
2 2 votes
2 2 answers
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1.1k views
Why sender and receiver window size are same in selective repeat?
1 1 vote
1 1 answer
872
872 views
I'm getting 81, but the answer given is 80. Please verify and explain.
2 2 votes
3 3 answers
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2.8k views
Consider a network connecting two systems located 4000 kilometers apart. The bandwidth of the network is 64 Mbps. The propagation speed of the media is 2/3 of the speed o...
7 7 votes
2 answers 2 answers
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.With the SR protocol, it is possible for the sender to receive an ACK for a packet that falls outside of its current window.??pleasee explain with example
7 7 votes
2 answers 2 answers
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Consider a network connecting two systems located $2000$ kilometers apart. The bandwidth of the network is $64 \text{ Mbps}$. The propagation speed of the media is $2/3$ ...
5 5 votes
1 answers 1 answer
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5.1k views
Consider a sliding window protocol that uses Selective Repeat , the sender sliding window size is 32 .The sequence number of the frame to be sent after sending 200 frames...
1 1 vote
1 answers 1 answer
967
967 views
A selective repeat ARQ uses a window size of $26$ to send the data. The number of bits needed to define the sequence number is _____.
6 6 votes
3 answers 3 answers
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A sliding window protocol uses Selective Repeat. The sender sliding window size is $32$. After receiving the first $100$ frames, the acknowledgement number that is piggyb...
8 8 votes
2 2 answers
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2.2k views
Consider a sliding window protocol that uses Selective Repeat, the sender sliding window size is $32$. The sequence number of the frame to be sent after sending $200$ fra...
2 2 votes
3 3 answers
3.1k
3.1k views
Consider a network connecting two systems located 4000 kilometers apart. The bandwidth of the network is 64 Mbps. The propagation speed of the media is 2/3 of the speed o...
9 9 votes
1 answers 1 answer
6.5k
6.5k views
In what protocols it is possible for sender to receive an ACK for a packet that falls outside of its window . Please justify ur answer .a)Stop and waitb)SRc) GBNd) allMy ...
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