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Recent questions tagged go-back-n
4
votes
1
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1
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 12
Consider the sender's view of the sequence numbers in Go-Back-N protocol. Suppose the first sequence number in the sender's window is $k$, and the last sequence number in the sender's window is $k+3$. Let a packet with sequence ... must have been sent. If $p_{k+2}$ is not sent, then $p_{k+1}$ must not have been sent.
Consider the sender's view of the sequence numbers in Go-Back-N protocol. Suppose the first sequence number in the sender's window is $k$, and the last sequence number in...
GO Classes
389
views
GO Classes
asked
Feb 5
Computer Networks
goclasses2024-mockgate-14
computer-networks
go-back-n
1-mark
+
–
0
votes
0
answers
2
In Go-Back-N protocol (with an ACK/NAK response time within three frame transmissions) there are constantly new frames to be transmitted. The frames are numbered with 3 bits and all numbers 0, 1, . . , 7 are used. The length of the transmission window is 2 (and the length of the receive window is 1 due to Go-Back-N). The first frame has the number 0. Errors occur in the 3rd and 9th transmission. Give the transmission window and receive window for the first 18 frames, and the numbering of the frames.
PranayKumar
433
views
PranayKumar
asked
Jun 27, 2023
Computer Networks
computer-networks
go-back-n
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–
0
votes
1
answer
3
Go-Back-N
In Go-Back-N protocol (with an ACK/NAK response time within three frame transmissions) there are constantly new frames to be transmitted. The frames are numbered with 3 bits and all numbers 0, 1, . . , 7 are used. The length of the transmission ... the 3rd and 9th transmission. Give the transmission window and receive window for the first 18 frames, and the numbering of the frames.
In Go-Back-N protocol (with an ACK/NAK response time within three frame transmissions) there are constantly new frames to be transmitted. The frames are numbered with 3 b...
Georgerene
514
views
Georgerene
asked
Jun 12, 2023
Computer Networks
go-back-n
computer-networks
sliding-window
+
–
1
votes
1
answer
4
GB-N
In GB-3, if every 4th packet that is being transmitted is lost and if we have to send 10 packet then how many total transmissions are required?
In GB-3, if every 4th packet that is being transmitted is lost and if we have to send 10 packet then how many total transmissions are required?
shahidcs
1.3k
views
shahidcs
asked
Apr 16, 2023
Computer Networks
go-back-n
+
–
0
votes
0
answers
5
Gate Test series
Q: Consider the Transmission of a 10000 bit frame on 10 Mbps channel with a propagation delay of 250 ms. The sender window size is 7 and probability of error in single frame is 0.001 then the channel utilization for go-back-N protocol (in percentage) is _________.
Q: Consider the Transmission of a 10000 bit frame on 10 Mbps channel with a propagation delay of 250 ms. The sender window size is 7 and probability of error in single fr...
MonuKhan
421
views
MonuKhan
asked
Jan 16, 2023
Computer Networks
computer-networks
probability
go-back-n
test-series
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1
votes
1
answer
6
MADE EASY test series | Computer Networks
Can someone please suggest weather to go for 20.5 or 21 in these kind of problems in GATE? As logically 21 is correct, but mathematically 20.5 is correct. Both the answers can be reasoned correct and wrong, feels like “Umpire’s call” in DRS, cricket.
Can someone please suggest weather to go for 20.5 or 21 in these kind of problems in GATE? As logically 21 is correct, but mathematically 20.5 is correct.Both the answers...
Souvik33
429
views
Souvik33
asked
Jan 3, 2023
Computer Networks
made-easy-test-series
computer-networks
go-back-n
sliding-window
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–
0
votes
1
answer
7
unacademy AIMT 2
In go back 5, if every 7th packet that is being transmitted is lost and if we have to send 10 packets, then how many transmissions are required____. I’m getting 15 but the given answer is 14
In go back 5, if every 7th packet that is being transmitted is lost and if we have to send 10 packets, then how many transmissions are required____.I’m getting 15 but t...
TusharKumar
569
views
TusharKumar
asked
Dec 22, 2022
Computer Networks
computer-networks
go-back-n
+
–
2
votes
1
answer
8
Solution is 2 or 3?
Should the solution for the above question be 2 or 3?
Should the solution for the above question be 2 or 3?
h4kr
515
views
h4kr
asked
Dec 9, 2022
Computer Networks
computer-networks
sliding-window
go-back-n
selective-repeat
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–
0
votes
2
answers
9
Sliding window, Go-Back-N protocol, All ack lost case
I understood that receiver will correctly discard the frames in GBN all ack lost case. But its given that its positive ack and hence receiver wont send ack for discarded frames.Wont the sender be sending the same frames again and again ... timeout as receiver will never send ack again? So how will the sender slide the window to the next frames?
I understood that receiver will correctly discard the frames in GBN all ack lost case. But its given that its positive ack and hence receiver wont send ack for discarded ...
fred20978
1.1k
views
fred20978
asked
Nov 8, 2022
Computer Networks
computer-networks
go-back-n
sliding-window
+
–
0
votes
2
answers
10
GATE CS Applied Course Test Series
In the GO back N ARQ sender is sending the 15 packets to the destination with a window size of 5.Assume every sixth packet while transmission is lost. How many transmissions will there be?
In the GO back N ARQ sender is sending the 15 packets to the destination with a window size of 5.Assume every sixth packet while transmission is lost. How many transmiss...
rsansiya111
1.2k
views
rsansiya111
asked
Nov 2, 2022
Computer Networks
computer-networks
applied-gate-test-series
go-back-n
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–
0
votes
1
answer
11
In Go-back-N protocol with m=6, the sending machine is in the ready state with Sf=10 and Sn=15, An ACK with ACKNo =13 arrives, what are the next values of Sf, Sn and Rn?
nandini96686
1.3k
views
nandini96686
asked
Sep 15, 2022
Computer Networks
go-back-n
+
–
0
votes
2
answers
12
Applied Test Series
A link has a transmission speed of 500 × 10^6 bpsec. Assume acknowledgment has negligible transmission delay, and it's one way propagation delay is 2 sec. Also assumes that the processing delays at nodes are also negligible. If data packet size is 107 bits, then the efficiency of Go-Back-7 protocol is _______ (in %) [Correct upto two places of decimals].
A link has a transmission speed of 500 × 10^6 bpsec. Assume acknowledgment has negligible transmission delay, and it's one way propagation delay is 2 sec. Also assumes t...
LRU
702
views
LRU
asked
Oct 13, 2021
Computer Networks
test-series
computer-networks
data-link-layer
go-back-n
+
–
0
votes
2
answers
13
Applied Test Series
In the GO back N ARQ sender is sending the 20 packets to the destination with a window size of 4. Every sixth packet is lost and after a packet loss sender is sending one dummy packet outside the window for ensuring everything is correct [ dummy packet is an outside packet not the part of the window]. How many number of transmissions will be there?
In the GO back N ARQ sender is sending the 20 packets to the destination with a window size of 4. Every sixth packet is lost and after a packet loss sender is sending one...
LRU
1.1k
views
LRU
asked
Oct 13, 2021
Computer Networks
test-series
computer-networks
stop-and-wait
data-link-layer
go-back-n
+
–
0
votes
1
answer
14
Kurose and Ross Edition 6 Exercise 3 Question R12 (Page No 286)
Visit the Go-Back-N Java applet at the companion Web site. Have the source send five packets, and then pause the animation before any of the five packets reach the destination. Then kill the first packet and ... destination and kill the first acknowledgment. Describe again what happens. Finally, try sending six packets. What happens?
Visit the Go-Back-N Java applet at the companion Web site.Have the source send five packets, and then pause the animation before any of the five packets reach the destina...
ajaysoni1924
1.3k
views
ajaysoni1924
asked
Apr 18, 2019
Computer Networks
computer-networks
kurose-and-ross
transport-layer
descriptive
go-back-n
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–
2
votes
0
answers
15
Self doubt
In go back n arq, the reciever window size is 1 and the sender window size is let's suppose 3.Now if the sender sends the frames with sequence numbers in order 0,1,2 and the reciever sends cumulative acknowledgement with number 3 and now expects a ... order and sender must keep on time out and sending the frames again.plz explain how will this be resolved or am I missing something?
In go back n arq, the reciever window size is 1 and the sender window size is let's suppose 3.Now if the sender sends the frames with sequence numbers in order 0,1,2 and ...
hitesh159
621
views
hitesh159
asked
Mar 23, 2019
Computer Networks
computer-networks
go-back-n
sliding-window
+
–
1
votes
0
answers
16
computer network
A Go-Back-5 ARQ scheme is employed on a 200 meters cable between two nodes A and B to send frames of size 10,000 bits with bit rate 1 Mbps and bit error probability of 10$^{-5}$. Headers and acknowledgements are 20 bytes each. The Speed of ... (except for the cable length), what is the maximum distance between the two nodes for which S&W will be as efficient as a GBN.
A Go-Back-5 ARQ scheme is employed on a 200 meters cable between two nodes A and B to send frames of size 10,000 bits with bit rate 1 Mbps and bit error probability of 10...
manisha11
902
views
manisha11
asked
Feb 23, 2019
Computer Networks
computer-networks
sliding-window
go-back-n
+
–
2
votes
1
answer
17
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
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...
Ram Swaroop
1.7k
views
Ram Swaroop
asked
Jan 22, 2019
Computer Networks
sliding-window
computer-networks
selective-repeat
go-back-n
+
–
1
votes
0
answers
18
Why we need to wait for ACK in sliding window protocol in this specific question
I was going through this question; The link A-R is instantaneous , but the R->B link transmits only 1 packet each second , one at a time . Assume A sends to B using sliding window protocol with window ... this wrong? Or I am wrong and sliding window protocol means Selective Repeat and it sends ACK for each frame?
I was going through this question;The link A-R is instantaneous , but the R->B link transmits only 1 packet each second , one at a time . Assume A sends to B using slidin...
Raj Singh 1
384
views
Raj Singh 1
asked
Jan 11, 2019
Computer Networks
computer-networks
sliding-window
go-back-n
+
–
1
votes
1
answer
19
MadeEasy Test Series: Computer Networks -Sliding Window
I am unable to understand their explanation,can anyone explain it in a better way?
I am unable to understand their explanation,can anyone explain it in a better way?
sripo
595
views
sripo
asked
Jan 5, 2019
Computer Networks
computer-networks
sliding-window
go-back-n
made-easy-test-series
+
–
0
votes
2
answers
20
Madeeasy[CN-Flow control]
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 minimum number of bits required for window to achieve 100% utilization during GBN and SR 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...
jatin khachane 1
1.3k
views
jatin khachane 1
asked
Dec 18, 2018
Computer Networks
computer-networks
go-back-n
+
–
3
votes
2
answers
21
MadeEasy Test Series: Computer Networks - Flow Control Methods
Assume 2 computers are connected via a network. The network uses Go-Back 7 sliding window protocol for maintaining flow control. It is observed that every 5th packet that has been sent through the network is lost. ... number of extra packets that has to be resent for transmitting 10 such packet through the network? With explanation.
Assume 2 computers are connected via a network. The network uses Go-Back 7 sliding window protocol for maintaining flow control. It is observed that every 5th packet that...
Subham Nagar
2.6k
views
Subham Nagar
asked
Dec 17, 2018
Computer Networks
made-easy-test-series
computer-networks
flow-control-methods
go-back-n
+
–
2
votes
2
answers
22
MadeEasy Test Series 2019: Computer Networks - Sliding Window
Assume 2 computers are connected via a network. The network uses GB-7 sliding window protocol for flow control.It is observed that every 5th packet that has been sent is lost. The number of extra packets needs to resend Number of total packets transmitted by sender for sending 10 packets .
Assume 2 computers are connected via a network. The network uses GB-7 sliding window protocol for flow control.It is observed that every 5th packet that has been sent is ...
jatin khachane 1
3.9k
views
jatin khachane 1
asked
Dec 15, 2018
Computer Networks
made-easy-test-series
computer-networks
go
go-back-n
+
–
0
votes
1
answer
23
GBN Maximum possible data rate
junaid ahmad
709
views
junaid ahmad
asked
Dec 8, 2018
Computer Networks
computer-networks
go-back-n
+
–
0
votes
0
answers
24
sliding window protocol question on earth and lunar
A colony is set up on moon. The 10 Mbps link from the earth to the lunar colony measures about 242,000 miles. Assume that the signal propagation speed is 186,000 miles per second. Calculate the minimum round trip time for ... . SRP with window size 8 and negligible processing delay. Go Back-n with window size 64 and negligible processing delay.
A colony is set up on moon. The 10 Mbps link from the earth to the lunar colony measures about 242,000 miles. Assume that the signal propagation speed is 186,000 miles pe...
John Doe
404
views
John Doe
asked
Nov 24, 2018
Computer Networks
computer-networks
go-back-n
stop-and-wait
error-control
+
–
0
votes
0
answers
25
made easy test series
answer given is 11. I am Getting 3
answer given is 11. I am Getting 3
amitqy
305
views
amitqy
asked
Nov 16, 2018
Computer Networks
go-back-n
+
–
0
votes
1
answer
26
#CN What is the channel utilization for the go-back-N protocol with window size of 7 for the problem 3?
Sender Window Size is 7 and every 3rd packet is lost/corrupted. So, how to find channel utilization!?
iarnav
1.9k
views
iarnav
asked
Nov 8, 2018
Computer Networks
computer-networks
sliding-window
go-back-n
stop-and-wait
+
–
1
votes
1
answer
27
#CN Stop and Wait ARQ Numerical about finding efficency?
Consider the use of 10 K-bit size frames on a 10 Mbps satellite channel with 270 ms delay. What is the link utilization for stop-and-wait ARQ technique assuming P = 10-3? My doubt - In frame size 10 K-bit, what should you take value of K? i.e K ... / (10 Mbps) = 1 msec Hence, a = 270/1 = 270 Link utilization = 0.999/(1+2*270) ≈0.0018 =0.18%
Consider the use of 10 K-bit size frames on a 10 Mbps satellite channel with 270 ms delay. What is the link utilization for stop-and-wait ARQ technique assuming P = 10-3?...
iarnav
1.8k
views
iarnav
asked
Nov 8, 2018
Computer Networks
stop-and-wait
computer-networks
go-back-n
sliding-window
+
–
3
votes
2
answers
28
MadeEasy Test Series: Computer Networks - Sliding Window
Consider the GBN protocol with sender and receiver window size as 5.Suppose client sends data 0,1,2,3,4 and only data packet 2 is lost and all ACKs are lost. What will be the content of receiver and sender window. Before Senders ... . Sender: 23456 , Receiver : 01234 C. Sender: 23456 , Receiver : 23456 D. Sender: 01234 , Receiver : 23456
Consider the GBN protocol with sender and receiver window size as 5.Suppose client sends data 0,1,2,3,4 and only data packet 2 is lost and all ACKs are lost. What will be...
Na462
3.1k
views
Na462
asked
Sep 15, 2018
Computer Networks
computer-networks
go-back-n
sliding-window
made-easy-test-series
+
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