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Recent questions tagged selective-repeat
1
vote
1
answer
1
Selective Repeat
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 ___________
amitarp818
asked
in
Computer Networks
Sep 18, 2023
by
amitarp818
484
views
selective-repeat
sliding-window
computer-networks
0
votes
1
answer
2
Computer Networks - Andrew Tanenbaum - The Data Link Layer
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 that the one-way propagation delay is 0.5 time unit, the ... A sends 8 frame in a row, starting at t = 0. All frames are received correctly, except frame 3 is lost.
suenolivia
asked
in
Computer Networks
Feb 27, 2023
by
suenolivia
998
views
data-link-layer
selective-repeat
2
votes
1
answer
3
Solution is 2 or 3?
Should the solution for the above question be 2 or 3?
h4kr
asked
in
Computer Networks
Dec 9, 2022
by
h4kr
483
views
computer-networks
sliding-window
go-back-n
selective-repeat
0
votes
0
answers
4
Test series question(Aceacademy)
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 may be possible that there is some delayed acknowledgment. It's possible ... I feel is not possible because here we are talking about cumulative ack not independent. So how is this reason valid?
Ananya Nayak
asked
in
Computer Networks
Dec 25, 2021
by
Ananya Nayak
458
views
computer-networks
flow-control-methods
selective-repeat
1
vote
2
answers
5
Andrew S. Tanenbaum Edition 5th Exercise 3 Question 33 (Page No. 254)
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 with data frames consisting of 40 header and 3960 data bits. ... frames is 1%, and the error rate for NAK frames is negligible. The sequence numbers are 8 bits.
ajaysoni1924
asked
in
Computer Networks
Mar 16, 2019
by
ajaysoni1924
860
views
computer-networks
tanenbaum
data-link-layer
sliding-window
selective-repeat
1
vote
1
answer
6
Andrew S. Tanenbaum Edition 5th Exercise 3 Question 30 (Page No. 253)
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 generated 1 second apart. ... acknowledgement timer were eliminated, unnecessary timeouts would occur. How many times would the average message be transmitted?
ajaysoni1924
asked
in
Computer Networks
Mar 16, 2019
by
ajaysoni1924
1.1k
views
computer-networks
tanenbaum
data-link-layer
sliding-window
selective-repeat
0
votes
0
answers
7
Andrew S. Tanenbaum Edition 5th Exercise 3 Question 25 (Page No. 253)
In protocol 6( Selective repeat Protocol ), when a data frame arrives, a check is made to see if the sequence number differs from the one expected and no nak is true. If both conditions hold, a NAK is ... auxiliary timer is started. Suppose that the else clause were omitted. Would this change affect the protocol's correctness?
ajaysoni1924
asked
in
Computer Networks
Mar 16, 2019
by
ajaysoni1924
565
views
computer-networks
data-link-layer
selective-repeat
tanenbaum
2
votes
1
answer
8
Made easy test series computer network gbn Sr sliding window protocol
Consider two computers A and B are connected through a network of 30 Mbps. Assume the distance between them is 3000km and the signal propagation speed is same as the speed of light and the packet size is 12 KB. What is the minimum number of bits ... -N and selective repeat protocol? A . 5 and 6 B. 6 and 7 C. 6 and 6 D. 7 and 8
Ram Swaroop
asked
in
Computer Networks
Jan 22, 2019
by
Ram Swaroop
1.6k
views
sliding-window
computer-networks
selective-repeat
go-back-n
1
vote
0
answers
9
Selective Repeat ARQ
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 __________
Sambhrant Maurya
asked
in
Computer Networks
Sep 23, 2018
by
Sambhrant Maurya
1.2k
views
computer-networks
sliding-window
selective-repeat
2
votes
1
answer
10
Selective Repeat
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 ?
Na462
asked
in
Computer Networks
Sep 15, 2018
by
Na462
7.3k
views
computer-networks
selective-repeat
sliding-window
2
votes
3
answers
11
Sliding window protocol
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.Selective repeat and GBN are used at 2 different times and every 5th packet get lost for ... of transmissions that A has to make in selective repeat and GBN respectively to ensure safe delivery to B. Then x+y= ?
Sumit Singh Chauhan
asked
in
Computer Networks
Aug 2, 2018
by
Sumit Singh Chauhan
6.1k
views
computer-networks
sliding-window
go-back-n
selective-repeat
1
vote
1
answer
12
Transmission Protocol
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!} Is this the right order of transmission of packet no.??
Naveen Kumar 3
asked
in
Computer Networks
May 8, 2018
by
Naveen Kumar 3
1.3k
views
computer-networks
sliding-window
selective-repeat
2
votes
2
answers
13
Sliding window protocol
Why sender and receiver window size are same in selective repeat?
JAYKISHAN
asked
in
Computer Networks
May 4, 2018
by
JAYKISHAN
712
views
selective-repeat
sliding-window
computer-networks
2
votes
1
answer
14
MadeEasy Test Series: Computer Networks - Network Flow
MIRIYALA JEEVAN KUMA
asked
in
Computer Networks
Jan 2, 2018
by
MIRIYALA JEEVAN KUMA
312
views
made-easy-test-series
computer-networks
network-flow
sr-arq
go-back-n
stop-and-wait
selective-repeat
1
vote
1
answer
15
MadeEasy Test Series: Computer Networks - Sliding Window
I'm getting 81, but the answer given is 80. Please verify and explain.
charul
asked
in
Computer Networks
Dec 22, 2017
by
charul
497
views
made-easy-test-series
computer-networks
sliding-window
go-back-n
selective-repeat
2
votes
2
answers
16
Selective Repeat
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 of light in vacuum. It is needed to design selective repeat sliding window protocol ... processing delays at nodes are negligible. Then, the minimum size in bits of the sequence number field has to be _________.
Shubham Kumar Gupta
asked
in
Computer Networks
Dec 17, 2017
by
Shubham Kumar Gupta
1.6k
views
computer-networks
selective-repeat
sliding-window
6
votes
2
answers
17
selective repeat || ACK falling outside of sender's window
.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
Akriti sood
asked
in
Computer Networks
Jan 3, 2017
by
Akriti sood
4.2k
views
selective-repeat
computer-networks
7
votes
2
answers
18
NW-Sliding Window Protocol No of Sequence number bit
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 $2/3$ of the speed of light in vacuum. It is needed to ... processing delays at nodes are negligible. Then, the minimum size in bits of the sequence number field has to be __________.
KISHALAY DAS
asked
in
Computer Networks
Dec 11, 2016
by
KISHALAY DAS
1.3k
views
computer-networks
sliding-window
selective-repeat
5
votes
1
answer
19
Acknowledgement Number in Selective Repeat protocol.
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 ______ After receiving first 100 frames the acknowledgement number that is piggybacked by the receiver along with data frame is _______
biranchi
asked
in
Computer Networks
Nov 27, 2016
by
biranchi
3.0k
views
computer-networks
selective-repeat
2
votes
3
answers
20
MadeEasy Test Series 2017: Computer Networks - Flow Control Methods
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 of light in vacuum. It is needed to design selective ... at nodes are negligible. Then, the minimum size in bits of the sequence number field has to be _________.
Pankaj Joshi
asked
in
Computer Networks
Sep 8, 2016
by
Pankaj Joshi
2.0k
views
made-easy-test-series
computer-networks
flow-control-methods
sliding-window
selective-repeat
9
votes
1
answer
21
Question 3) Sliding Window Protocol
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 wait b)SR c) GBN d) all My approach Ws = 3 t=0 sends packets 1,2,3 t=1 reveiver ACK 1,2,3 ... t=3 This is outside window The above is true for GBN and SR . What about Stop and Wait ? Answer is given as Stop and wait
pC
asked
in
Computer Networks
Jul 8, 2016
by
pC
4.5k
views
sliding-window
computer-networks
stop-and-wait
selective-repeat
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