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Some good questions
Recent questions tagged sliding-window
2
votes
0
answers
91
Computer network doubt
Assume by transmitting packet using go back 5, every 4th packet is lost .number of Transmission required to transmit 10 packets.......
Assume by transmitting packet using go back 5, every 4th packet is lost .number of Transmission required to transmit 10 packets.......
Surya Dhanraj
476
views
Surya Dhanraj
asked
Dec 27, 2017
Computer Networks
computer-networks
sliding-window
+
–
2
votes
1
answer
92
Go back n
Consider a network connecting two systems, ‘A’ and ‘B’ located 6000 km apart. The propagation speed of media is 2 × 106 mps. It is needed to design a Go-Back-7 sliding window protocol for this network. The average packet size is 107 bits. If network used as its full capacity, then the bandwidth of network is__________ Mbps
Consider a network connecting two systems, ‘A’ and ‘B’ located 6000 km apart. The propagation speed of media is 2 × 106 mps. It is needed to design a Go-Back-7 s...
VS
959
views
VS
asked
Dec 23, 2017
Computer Networks
computer-networks
go-back-n
sliding-window
+
–
1
votes
1
answer
93
MadeEasy Test Series: Computer Networks - Sliding Window
I'm getting 81, but the answer given is 80. Please verify and explain.
I'm getting 81, but the answer given is 80. Please verify and explain.
charul
512
views
charul
asked
Dec 22, 2017
Computer Networks
made-easy-test-series
computer-networks
sliding-window
go-back-n
selective-repeat
+
–
0
votes
0
answers
94
Confusion in #RTTs : Slow start-first full window
Suppose, size of a full window is 24 Kb. There is no congestion. 1 MSS = 2 Kb. RTT = 10 ms How long does it take to send the first full window? Approach 1) 2 | 4 | 8 | 16 | 24 = 4 RTTs =4 * 10 ms = 40ms Approach 2) 2 | 4 | 8 | 16 | 24 | = 5 RTTs = 5 * 10 ms = 50ms Which approach is correct?
Suppose,size of a full window is 24 Kb.There is no congestion.1 MSS = 2 Kb.RTT = 10 msHow long does it take to send the first full window?Approach 1) 2 | 4 | 8 | 16 | 24 ...
Tuhin Dutta
433
views
Tuhin Dutta
asked
Dec 19, 2017
Computer Networks
computer-networks
congestion-control
sliding-window
+
–
3
votes
1
answer
95
Window size
Compute approx. optimal window size, when packet size is 53 B, RTT is 60 micro-sec and bottleneck bandwidth is 155Kbps.
Compute approx. optimal window size, when packet size is 53 B, RTT is 60 micro-sec and bottleneck bandwidth is 155Kbps.
Tuhin Dutta
892
views
Tuhin Dutta
asked
Dec 19, 2017
Computer Networks
computer-networks
sliding-window
go-back-n
+
–
3
votes
1
answer
96
window size of Go_back_N
Two stations A and B are connected via a point to point link. A sends frames to B using Go-Back-N protocol with a window size of 7 and sequence number is of 3 bits. A sends all the frames one by one but B's ACK-3 for frame 3 is not reached to A. But before the timer expires, B received frame 4 and ... 0) a) 0 1 2 3 4 6 b) 3 4 5 6 0 1 2 c) 5 6 7 0 1 2 3 d) 5 6 0 1 2 3 4
Two stations A and B are connected via a point to point link. A sends frames to B using Go-Back-N protocol with a window size of 7 and sequence number is of 3 bits. A sen...
Tuhin Dutta
1.7k
views
Tuhin Dutta
asked
Dec 19, 2017
Computer Networks
computer-networks
sliding-window
go-back-n
+
–
2
votes
2
answers
97
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 _________.
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...
Shubham Kumar Gupta
1.7k
views
Shubham Kumar Gupta
asked
Dec 16, 2017
Computer Networks
computer-networks
selective-repeat
sliding-window
+
–
2
votes
1
answer
98
Efficiency of Stop-and-Wait, Selective Reject and Go-Back-N ARQ when error probability is p
Hi Guys, Do you know formula for efficiency of Stop-and-Wait, Selective Reject and Go-Back-N ARQ when error probability is p ? PS: Although i am mentioning the link for answer but if you want to add some ... info.(or some more elegant proof for the formula) then it will be really helpful for all readers. :)
Hi Guys,Do you know formula for efficiency of Stop-and-Wait, Selective Reject and Go-Back-N ARQ when error probability is p ?PS: Although i am mentioning the link for an...
Chhotu
2.3k
views
Chhotu
asked
Dec 10, 2017
CO and Architecture
computer-networks
sliding-window
stop-and-wait
go-back-n
+
–
1
votes
4
answers
99
go back n
Assume while transmitting packets using GB5, every 4th packet is lost. Number of transmissions required to transmit 10 packets is ________
Assume while transmitting packets using GB5, every 4th packet is lost. Number of transmissions required to transmit 10 packets is ________
Amitesh Sharma
2.4k
views
Amitesh Sharma
asked
Nov 28, 2017
Computer Networks
computer-networks
sliding-window
+
–
0
votes
2
answers
100
Sliding window
Compute approximate optimal window size when packet size is 53 bytes, RTT is 60 microseconds and bottleneck bandwidth is 155 Mbps. 21 22 23 24
Compute approximate optimal window size when packet size is 53 bytes, RTT is 60 microseconds and bottleneck bandwidth is 155 Mbps.21222324
Amitesh Sharma
895
views
Amitesh Sharma
asked
Nov 28, 2017
Computer Networks
sliding-window
computer-networks
+
–
2
votes
0
answers
101
Go-Back-N
The efficiency of a Go-Back-N protocol is $\eta = \frac{N}{1+ 2 *\frac{Propogation Delay}{Transmission Delay}}$ In this equation what is the exact value of N. Is it the one given in Go-Back-N or (2N-1).
The efficiency of a Go-Back-N protocol is $\eta = \frac{N}{1+ 2 *\frac{Propogation Delay}{Transmission Delay}}$In this equation what is the exact value of N. Is it the on...
sumit chakraborty
1.1k
views
sumit chakraborty
asked
Nov 26, 2017
Computer Networks
computer-networks
go-back-n
sliding-window
+
–
1
votes
0
answers
102
GATE-CS-2006
Station A uses 32 byte packets to transmit messages to Station B using a sliding window protocol. The round trip delay between A and B is 80 milliseconds and the bottleneck bandwidth on the path between A and B is 128 kbps. What is the optimal window size that A should ... of packets Then optimal Window size is 40 If the RTT=2*Tp then we get Ws = 41, what is the correct approach ?
Station A uses 32 byte packets to transmit messages to Station B using a sliding window protocol. The round trip delay between A and B is 80 milliseconds and the bottlene...
Salazar
1.1k
views
Salazar
asked
Nov 22, 2017
Computer Networks
gate-2006
computer-networks
sliding-window
+
–
1
votes
0
answers
103
Sender Window size
why sender window size is equal to 1+2a in sliding window.
why sender window size is equal to 1+2a in sliding window.
anoop yadav 2
355
views
anoop yadav 2
asked
Nov 16, 2017
Computer Networks
computer-networks
sliding-window
go-back-n
+
–
2
votes
1
answer
104
MadeEasy Subject Test: Computer Networks - Sliding Window
Consider a network connecting two systems located 4000kms apart. The bandwidth of the network is 64 Mbps. The propagation speed of the media is 2/3 of the speed of light in vaccum. It is needed to design a selective ... that processing delays at nodes are negligible. Then the minimum size in bits of the sequene number field is ______ ?
Consider a network connecting two systems located 4000kms apart. The bandwidth of the network is 64 Mbps. The propagation speed of the media is 2/3 of the speed of light ...
anumita
298
views
anumita
asked
Nov 12, 2017
Computer Networks
made-easy-test-series
computer-networks
sliding-window
+
–
2
votes
1
answer
105
Sliding window protocol
TRUE OR FALSE Between two ACK packet's the sender will never send more than one packet in sliding window protocol.
TRUE OR FALSEBetween two ACK packet's the sender will never send more than one packet in sliding window protocol.
junaid ahmad
345
views
junaid ahmad
asked
Nov 11, 2017
Computer Networks
sliding-window
+
–
0
votes
1
answer
106
Utilization
In a Stop and WaIT ARQ protcol given Bandwidth = 1Mbps and 1bit RTT = 20ms ,Frame size is 1000bits whats the % Utilization of the link? Soln. My approach is :- Bandwidth delay pdt = 1x10^6 x 20 x10^-3 = 20000bits And system sends 1000bits at a time so 1000/20000 = 5% Is this approach Correct? Other way :- U = Tr/(Tr + RTT) but by this answer doesnt matches Plz Correct me
In a Stop and WaIT ARQ protcol given Bandwidth = 1Mbps and 1bit RTT = 20ms ,Frame size is 1000bits whats the % Utilization of the link?Soln. My approach is :-Bandwidth de...
Na462
491
views
Na462
asked
Nov 10, 2017
Computer Networks
sliding-window
stop-and-wait
+
–
0
votes
0
answers
107
Utilization
Can we Say that the link Utilization is also Equal to FrameSize/Bandwidth Delay Pdt ? Because BDP Determines max data which can be present at a time in the network and we are at a time transmitting data equal to only frame size So Utilization can be written like above? And suppose we are given window size too then U = (Window * Frame Size)/Bandwidth Delay Pdt
Can we Say that the link Utilization is also Equal to FrameSize/Bandwidth Delay Pdt ?Because BDP Determines max data which can be present at a time in the network and we ...
Na462
329
views
Na462
asked
Nov 9, 2017
Computer Networks
sliding-window
+
–
0
votes
0
answers
108
Sliding Window
Please can anybody justify the given formulae Distinct Sequence number >= Sender WS + Receiver WS By a Proper Example that why we need to consider both window sizes for distinct Sequence number.
Please can anybody justify the given formulae Distinct Sequence number >= Sender WS + Receiver WSBy a Proper Example that why we need to consider both window sizes for...
Na462
277
views
Na462
asked
Nov 6, 2017
Computer Networks
sliding-window
+
–
2
votes
1
answer
109
Sequence number
When we talk of flow control we provide sequence number to our frames so that duplicate is avoided. But in IEEE 802.3 frame consist of PREAMBLE DEST.MAC SOURCE.MAC TYPE/H.LENGHT DATA PAD CRC which field does hold the sequence number ? or its a wrong question? plz tell me what i am missing in here?
When we talk of flow control we provide sequence number to our frames so that duplicate is avoided. But in IEEE 802.3 frame consist of PREAMBLE DEST.MA...
Na462
1.7k
views
Na462
asked
Nov 5, 2017
Computer Networks
computer-networks
sliding-window
sequencenumber
+
–
3
votes
2
answers
110
#ace - cn - swp
Consider host A uses 32B packets to transmit to host B using SWP. The distance between host A and B is 1000000 meters and the propagation delays is 2 * 100000000 m/s. The data rate is 128 kbps. The optimal window size that A should use will be .................?
Consider host A uses 32B packets to transmit to host B using SWP. The distance between host A and B is 1000000 meters and the propagation delays is 2 * 100000000 m/s. The...
ravi rajak 3
496
views
ravi rajak 3
asked
Oct 30, 2017
Computer Networks
computer-networks
sliding-window
ace-test-series
+
–
2
votes
1
answer
111
Computer Network | Sliding Window Protocol
rahulsangwn
486
views
rahulsangwn
asked
Oct 25, 2017
Computer Networks
sliding-window
computer-networks
+
–
1
votes
1
answer
112
What is the optimal window size when the one way delay is 30 msec, operates on............. #techtud
What is the optimal window size when the one way delay is 30 msec, operates on 40 Mbps bottleneck bandwidth and packet size is 65 bytes?
Rohit Gupta 8
611
views
Rohit Gupta 8
asked
Oct 24, 2017
Computer Networks
computer-networks
sliding-window
+
–
0
votes
0
answers
113
#GATE
Packets are being transmitted using GB5 and here every 4th packet is lost.How many packets need to be transmitted to transmit 10 packets?
Packets are being transmitted using GB5 and here every 4th packet is lost.How many packets need to be transmitted to transmit 10 packets?
amuchand47
326
views
amuchand47
asked
Oct 15, 2017
Computer Networks
go-back-n
sliding-window
+
–
5
votes
3
answers
114
In Go-Back-N protocol, if the maximum window size is 127, what is the range of the sequence number?
In Go-Back-N protocol, if the maximum window size is 127, what is the range of the sequence number? A. 0 to 127 B. 0 to 128 C. 1 to 127 D. 1 to 128 Answer given is A Please explain :) Thanks.
In Go-Back-N protocol, if the maximum window size is 127, what is the range of the sequence number?A. 0 to 127 B. 0 to 128 C. 1 to 127 D. 1 to 128Answer given is APlease ...
sunil sarode
13.7k
views
sunil sarode
asked
Oct 6, 2017
Computer Networks
computer-networks
go-back-n
sliding-window
+
–
5
votes
2
answers
115
SWP OPTIMAL WINDOW SIZE
junaid ahmad
940
views
junaid ahmad
asked
Oct 4, 2017
Computer Networks
computer-networks
sliding-window
+
–
5
votes
3
answers
116
Packet Loss in GBN
Q1 >> Station A wants to send 10 packets to station B using Go Back N ARQ, where N = 4. Moreover consider every 4 th packet lost while transmission (ACK's from B never get lost). Calculate the number of transmissions that A has to make ... from B never get lost). Calculate the number of transmissions that A has to make in GBN respectively to ensure safe delivery to B.
Q1 > Station A wants to send 10 packets to station B using Go Back N ARQ, where N = 4. Moreover consider every 4 th packet lost while transmission (ACK's from B never get...
Shubhanshu
3.3k
views
Shubhanshu
asked
Oct 4, 2017
Computer Networks
computer-networks
sliding-window
go-back-n
+
–
0
votes
3
answers
117
Testbook Test Series: Computer Networks - Sliding Window
Parshu gate
563
views
Parshu gate
asked
Sep 17, 2017
Computer Networks
computer-networks
testbook-test-series
sliding-window
+
–
1
votes
1
answer
118
UGC NET CSE | December 2009 | Part 2 | Question: 27
What is the maximum window size in sliding window protocol used in a computer network ? (A) 4 (B) 8 (C) 15 (D) 16
What is the maximum window size in sliding window protocol used in a computernetwork ?(A) 4(B) 8(C) 15(D) 16
rishu_darkshadow
1.3k
views
rishu_darkshadow
asked
Sep 17, 2017
Computer Networks
ugcnetcse-dec2009-paper2
computer-networks
sliding-window
+
–
2
votes
1
answer
119
Sliding window protocol
What's the answer ?
What's the answer ?
Xylene
1.0k
views
Xylene
asked
Aug 25, 2017
Computer Networks
sliding-window
computer-networks
+
–
1
votes
1
answer
120
Computer Network: Throughput and Efficiency on SWP
How to calculate window size in Stop and Wait, Select and Repeat, GBN. Some where I have seen window size as w = 1+2a where a = PT/TT. and some where it is calculated as: if we have RTT = 160msec BW = ... follow. And how to calculate Throughput and Efficiency ib all three protocol u can take above configuration to derive result. Please explian it.
How to calculate window size in Stop and Wait, Select and Repeat, GBN.Some where I have seen window size as w = 1+2awhere a = PT/TT.and some where it is calculated as:if ...
Shubhanshu
2.6k
views
Shubhanshu
asked
Aug 25, 2017
Computer Networks
computer-networks
network
data-link-layer
sliding-window
+
–
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