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Recent questions tagged sliding-window
7
votes
3
answers
121
Cn: Optimal windows size
The round trip delay between x and y is given as 60 ms and bandwidth of link between X and Y is 512 KBps. What is the optimal window size (in packets) if the packet size is 64 bytes and channel is full duplex
rahul sharma 5
asked
in
Computer Networks
Aug 15, 2017
by
rahul sharma 5
3.5k
views
computer-networks
sliding-window
2
votes
1
answer
122
Cn : Calculate number of transmissions in SR and GBN
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 ... make in selective repeat and GBN respectively to ensure safe delivery to B.Then what are the values of x and y?
rahul sharma 5
asked
in
Computer Networks
Aug 14, 2017
by
rahul sharma 5
1.5k
views
computer-networks
sliding-window
7
votes
2
answers
123
CN ARQ Protocol
True / False? Selective repeat ARQ requires more number of bits in sequence number as compared to Go Back n ARQ.
rahul sharma 5
asked
in
Computer Networks
Aug 13, 2017
by
rahul sharma 5
1.6k
views
computer-networks
go-back-n
sliding-window
2
votes
1
answer
124
CN Maximum sender window Size
In every sliding window protocol,the maximum sender window size is the number of frames that can be transferred by sender in RTT? Is this statement true?
rahul sharma 5
asked
in
Computer Networks
Aug 10, 2017
by
rahul sharma 5
1.5k
views
computer-networks
sliding-window
5
votes
1
answer
125
Computer Network - Sliding Window Protocol
A 3000 km long trunk operates at 1.536 Mbps and it is used to transmit 64 Bytes frames. If it uses sliding window protocol then what is the number required sequence numbers. Assume propagation speed of 8 microsec/ km? A. 63 B. 110 C. 123 D. 145 how to solve
Pranav Madhani
asked
in
Computer Networks
Jul 24, 2017
by
Pranav Madhani
6.1k
views
computer-networks
sliding-window
3
votes
4
answers
126
Go back N (arq) protocol
Q. If maximum sequence number in Go back N ( arq) protocol is 'n' then window size (sender) is ? If your answer is 'n' or 'n'+1' then please design GBN for sender window 5 and 11 .
Abhi Som
asked
in
Computer Networks
Jul 19, 2017
by
Abhi Som
12.6k
views
computer-networks
go-back-n
sliding-window
1
vote
1
answer
127
Gateforum Computer Networks
Consider sliding window protocol for a 10MBps channel with the propagation delay of 300 µs. If packet size is 1kB then what is the maximum link utilization for window size of 127? a. 100% b. 75% c. 2.8% d. 43%
Satyajeet Singh
asked
in
Computer Networks
Jun 3, 2017
by
Satyajeet Singh
1.8k
views
error-and-flow-control
sliding-window
5
votes
4
answers
128
ISI CSB Sample Questions 2017
Station $A$ is sending data to station $B$ over a full duplex error free channel. A sliding window protocol is being used for flow control. The send and receive window size is being used for flow control. The send and receive window sizes ... . The propagation delay over the link is $\text{300 micro sec}$. What is the max achievable throughput in this communication?
Preeti1012
asked
in
Computer Networks
May 11, 2017
by
Preeti1012
1.4k
views
isi-2017
computer-networks
sliding-window
numerical-answers
3
votes
1
answer
129
Test by Bikram | Mock GATE | Test 3 | Question: 52
Read the below mentioned statements: The size of the $TCP$ advertised window never changes throughout the duration of the connection. With the Selective Repeat protocol (which uses selective acknowledgement) it is not possible for the sender to receive ... current window. Which of the above statements is FALSE? I and II II only II and III I only
Bikram
asked
in
GATE
Feb 9, 2017
by
Bikram
620
views
tbb-mockgate-3
computer-networks
tcp
sliding-window
0
votes
1
answer
130
Test by Bikram | Mock GATE | Test 3 | Question: 45
Two hosts $L1$ and $L2$ are connected via a communication link. The host $L2$ has a buffer for receiving data of total size $6000$ $Bytes$. The $2000$ $Bytes$ of received data (unprocessed data) is present in the receiver buffer at ... of congestion window at host $L1$ is $3500$ $Bytes$, the maximum sending window size at host $L1$ is ________.
Bikram
asked
in
GATE
Feb 9, 2017
by
Bikram
479
views
tbb-mockgate-3
numerical-answers
computer-networks
sliding-window
2
votes
3
answers
131
Ace Test Series: Computer Networks - Sliding Window
Pls verify that Ans. would be 45 or 46 ?
Anup patel
asked
in
Computer Networks
Feb 9, 2017
by
Anup patel
978
views
ace-test-series
computer-networks
sliding-window
0
votes
1
answer
132
MadeEasy Subject Test 2019: Computer Networks - Sliding Window
How it is coming answer 8 ?
shu
asked
in
Computer Networks
Feb 2, 2017
by
shu
342
views
made-easy-test-series
computer-networks
sliding-window
0
votes
0
answers
133
[Computer Network] Sliding window General doubt Tanenbaum p-333
To find an appropriate value for w we need to know how many frames can fit inside the channel as they propagate from sender to receiver. This capacity is determined by the bandwidth in bits/sec multiplied by the one- ... delay product means that time it takes first bit to reach receiver to the first frame to reach receiver?Please help
rahul sharma 5
asked
in
Computer Networks
Jan 26, 2017
by
rahul sharma 5
597
views
computer-networks
sliding-window
1
vote
2
answers
134
Virtual Gate Test Series: Computer Networks - Sliding Window
What is send as ack in sliding window? The next packet which the sender want to received or the packet right now sender received? I think the sender send the ack as the packet it has got right now. ? In sliding window protocol, sender's window size is ... $(B)$ Frame $n-1$ $(C)$ Frames $0$ to $n$ $(D)$ Frames $0$ to $n-1$
Tendua
asked
in
Computer Networks
Jan 25, 2017
by
Tendua
1.3k
views
computer-networks
sliding-window
virtual-gate-test-series
1
vote
1
answer
135
Go Back N
Consider a network which has : Bandwidth (B) = 10 Mbps Distance between two hosts (d) 500 kilometers Average packet size(L) = 103 bits Propagation speed = 2 108 m/s It is designed a Go - Back N sliding window protocol for this network. ... . Assume that processing delays at nodes are negligible. Then the minimum window size has to be ___________. Correct Answer: 51 Status: unattempted
vishwa ratna
asked
in
Computer Networks
Jan 18, 2017
by
vishwa ratna
770
views
go-back-n
computer-networks
sliding-window
0
votes
2
answers
136
Stop and wait
A channel has a capacity of 256 Mbps, maximum packet size is 1024 bytes and RTT is 200 μsec. So what is efficiency of sender (Assume that channel uses stop & wait protocol? Your Answer: 13.793 Correct Answer: 2 Status: incorrect
vishwa ratna
asked
in
Computer Networks
Jan 18, 2017
by
vishwa ratna
1.6k
views
stop-and-wait
sliding-window
computer-networks
0
votes
1
answer
137
Finding maximum throughput in Stop and Wait
The problem: Given: $B=$ 64 kbps satellite channel $L=$ 512 B data frames Round Trip Time (RTT) = 64 ms What is the maximum throughput for window size of 1?
GateAspirant999
asked
in
Computer Networks
Jan 18, 2017
by
GateAspirant999
2.7k
views
stop-and-wait
computer-networks
sliding-window
2
votes
3
answers
138
Optimal Window Size
In optimal window size for sender or for finding the maximum window size of sender N, do we consider N=1+2a or N=a. Where a=(propagation time/Transmission time)? For max efficiency: n*Tt should be equal to Tt+2Tp. ie n=1+2a. But in some places it is just n=2a.
Purple
asked
in
Computer Networks
Jan 18, 2017
by
Purple
7.6k
views
computer-networks
tcp
sliding-window
3
votes
2
answers
139
Test by Bikram | Mock GATE | Test 1 | Question: 52
Two peer processes $A$ (sender) and $B$ (receiver) use stop-and-wait $ARQ$ to send packets over a single link with capacity $C$. All packets have the same length of $100$ bits. The round-trip time (which is the time ... per second. The average transmission rate (in bits per seconds) with which process $A$ sends data to process $B$ is ________.
Bikram
asked
in
GATE
Jan 16, 2017
by
Bikram
987
views
tbb-mockgate-1
numerical-answers
stop-and-wait
computer-networks
sliding-window
3
votes
6
answers
140
Testbook Test Series: Computer Networks - Sliding Window
packets are being transmitted using GB5 and here every 4th packet is lost.How many packets need to be transmitted to transmit 10 packets? my answr 18 given :20
Aboveallplayer
asked
in
Computer Networks
Jan 15, 2017
by
Aboveallplayer
2.4k
views
computer-networks
testbook-test-series
sliding-window
2
votes
3
answers
141
geeks-for-geeks-mock-2017
In Go–back 3 flow control protocol every 6th packet is lost. If we have to send 11 packets. How many transmissions will be needed ? (A) 10 (B) 17 (C) 12 (D) 9
Sarvottam Patel
asked
in
Computer Networks
Jan 13, 2017
by
Sarvottam Patel
1.8k
views
sliding-window
0
votes
1
answer
142
sequence number
In flow control, ie SWP, when in question, it is asked that what are the bits required in sequence number, does it mean for only sender's window, as we always do log (1+2a), and 1+2a is SWS. My doubt is if asked for both sender and reciever, the following method is correct? in GBN--> log(2+2a) in SR --> log (2*(1+2a))
Lucky sunda
asked
in
Computer Networks
Jan 12, 2017
by
Lucky sunda
433
views
computer-networks
sliding-window
0
votes
0
answers
143
GBN PROTOCOL
Station X needs to send a message consisting of 12 packets to Station Y using a siding window (window size 4) and go-back-n error control strategy. All packets are ready and immediately available for transmission. If every 7th packet that X transmits gets lost (but no acks from Y ever get lost), then the number of packets that X will transmit for sending the message to Y are
reena_kandari
asked
in
Computer Networks
Jan 7, 2017
by
reena_kandari
775
views
go-back-n
sliding-window
computer-networks
3
votes
2
answers
144
UGC NET CSE | June 2014 | Part 3 | Question: 72
Four bits are used for packed sequence numbering in a slinding window protocol used in a computer network. What is the maximum window size? 4 8 15 16
go_editor
asked
in
Computer Networks
Jan 6, 2017
by
go_editor
5.3k
views
ugcnetjune2014iii
computer-networks
sliding-window
1
vote
1
answer
145
MadeEasy Subject Test: Computer Networks - Sliding Window
In list II , the 2nd point and 4th point both are correct for GBN according to me.
Lucky sunda
asked
in
Computer Networks
Jan 3, 2017
by
Lucky sunda
497
views
made-easy-test-series
computer-networks
sliding-window
7
votes
2
answers
146
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
1.4k
views
computer-networks
sliding-window
selective-repeat
1
vote
3
answers
147
Ace Test Series: Computer Networks - Flow Control Methods
thor
asked
in
Computer Networks
Dec 7, 2016
by
thor
608
views
ace-test-series
computer-networks
flow-control-methods
sliding-window
2
votes
3
answers
148
Test by Bikram | Computer Networks | Test 1 | Question: 25
A $3000$ km long trunk operates at $1.536\times 10^6$ bps and is used to transmit $64$ byte frames using sliding window protocol. If the propagation speed is $6$ microseconds/km then the number of bits needed for the sequence number for maximum efficiency is _______
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
1.4k
views
tbb-cn-1
numerical-answers
sliding-window
0
votes
1
answer
149
Gate Practice Question
Consider the GBN protocol with a sender window size of 4 and a sequence number range of 1,024. Suppose that at time t, the next in-order packet that the receiver is expecting has a sequence number of k. Assume that the medium does not reorder messages. What are all possible values of the ACK field in all possible messages currently propagating back to the sender at time t?
Ravi_1511
asked
in
Computer Networks
Nov 25, 2016
by
Ravi_1511
1.0k
views
sliding-window
data-link-layer
2
votes
1
answer
150
gatebook
Assume all frames have size F bits, and the propagation delay on the link is P sec, and the bandwidth is B bps. Assume also that the receiver piggybacks acknowledgements on frames going to the sender. What should the window size n (in frames) be at the sender in order to effectively use the bandwidth? (A) 2+2PB/F (B) 1+2PB/F (C) 2PB/F (D) 1+PB/F
Shubham Pandey 2
asked
in
Computer Networks
Nov 5, 2016
by
Shubham Pandey 2
622
views
sliding-window
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