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Recent questions tagged stop-and-wait

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GATE CSE 2023 | Question: 7
Suppose two hosts are connected by a point-to-point link and they are configured to use $\textsf{Stop-and-Wait}$ protocol for reliable data transfer. Identify in which one of the following scenarios, the utilization of the ... Longer link length and higher transmission rate Shorter link length and lower transmission rate Shorter link length and higher transmission rate

admin asked in Computer Networks Feb 15

by admin

2.3k views

3 votes

1 answer

2

GATE CSE 2023 | Memory Based Question: 46
A link is point-to-point connected and using stop and wait protocol, which of the following correctly states lowest link utilization. Lower link length and lower transmission rate. Lower link length and higher transmission rate. Higher link length and lower transmission rate. Higher link length and higher transmission rate.

GO Classes asked in Computer Networks Feb 6

682 views

1 vote

1 answer

3

GATE CSE 2023 | Memory Based Question: 48
3 DNS iterative queries each has RTT time. One HTTP server sending 10 small objects, HTTP server to clieent also takes RTT time. 9 in nonpersistent with 5 parallel connection 7 in non persistent with 5 parallel connection 5 in persistent pipelined 6 in persistent pipelined

GO Classes asked in Computer Networks Feb 6

824 views

0 votes

1 answer

4

Self Doubt
In Stop and Wait, how is it ensured that the sender do not consider delayed acknowledgement(of some previous frame) as actual acknowledgement for frame which was actually lost during transmission ? Anyone please reply ..

Shivateja MST asked in Computer Networks Dec 9, 2022

by Shivateja MST

109 views

0 votes

1 answer

5

doubt.
What are the effect of stop & wait protocol on half & full duplex system ?

Nisha Bharti asked in Computer Networks Sep 28, 2022

by Nisha Bharti

150 views

1 vote

2 answers

6

Unacademy test series.
In a stop and wait ARQ, Bandwidth Delay product is 20,000 bits. Given the frame size is 1000 bits. What is the percentage of utilization of link if we have a protocol that can send 15 frames without waiting for acknowledgement?

Nisha Bharti asked in Computer Networks Sep 21, 2022

by Nisha Bharti

313 views

0 votes

0 answers

7

How do you find the channel utilization with stop and wait protocol?
The distance from Earth to a distant planet is approximately $5 \times 10^9$ km. Assume that the frame size is 15 Kbits and the speed of light is $3\times 10^8$ m/s. Assume that the bit rate is 8 Mbps. What is the efficiency (channel utilization) if a stop-and-wait protocol is used?

Drechao23 asked in Computer Networks Sep 9, 2022

148 views

1 vote

0 answers

8

NIELIT 2022 April Scientist B | Section B | Question: 46
A sender uses the Stop-and-Wait $\text{ARQ}$ protocol for reliable transmission of frames. Frames are of size $1000 \; \text{bytes}$ and the transmission rate at the sender is $80 \; \text{Kbps (1 Kbps = 1000 bits/second)}.$ ... $\text{bytes/second}.$ $2500$ $2000$ $1500$ $500$

soujanyareddy13 asked in Others Apr 12, 2022

by soujanyareddy13

290 views

5 votes

2 answers

9

Gate CSE Mock Test Series | Unacademy 2022
A sender uses the stop and wait ARQ protocol for reliable transmission of frames. Frames are of size 100 bytes and the transmission rate at the sender is 20 Kbps. Size of an acknowledgement is 10 bytes and the transmission rate at the receiver is 8 Kbps. The ... data meaning 1msec → $\frac{100}{70}$ Bytes of data hence 1sec → $\frac{10}{7}X1000$ = 1428.57

sharmanikhil610 asked in Computer Networks Jan 23, 2022

by sharmanikhil610

417 views

5 votes

1 answer

10

Applied Test Series
Suppose you want to transfer a file from Hyderabad to Bangalore. The size of file is 90,000 bytes. The file will be transferred in 1,500-byte data packets, for which 40 bytes are taken up with headers. The size of acknowledgement packets is 40 ... receives the entire data packet.Assume no packet loss. With Stop-and-Wait, how long will it take to transfer the file successfully?

LRU asked in Computer Networks Oct 23, 2021

by LRU

706 views

0 votes

2 answers

11

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?

LRU asked in Computer Networks Oct 13, 2021

by LRU

597 views

1 vote

1 answer

12

Applied Test Series
Two systems are connected with the link and link is having a bandwidth of 20 Mbps. Assume the distance between them is 2400 km and the size of the packet is 2 KB with propagation speed is the same as the speed of light. What is the minimum number of bits required for the window to achieve 100% utilization in selective repeat protocol?

LRU asked in Computer Networks Oct 13, 2021

by LRU

382 views

0 votes

1 answer

13

self doubt Stop and wait protocol
Consider a network topology using STOP and WAIT protocol A---------R----------B (here R is STORE and FORWARD ROUTER) Tp=1uS , Tx(data)=1000uS, Tx(ack)=10uS File Size =10000bits, Packet size=1000bits. How long will it take for A to ... then A will Transmit second packet OR here A will send packet toHost B and B will send ack back to A then A will send second packet

gourav94240 asked in Computer Networks Jun 9, 2019

529 views

2 votes

2 answers

14

Andrew S. Tanenbaum Edition 5th Exercise 3 Question 32 (Page No. 254)
Frames of 1000 bits are sent over a 1-Mbps channel using a geostationary satellite whose propagation time from the earth is 270 msec. Acknowledgements are always piggybacked onto data frames. The headers are very short. Three-bit ... achievable channel utilization for (a) Stop-and-wait? (b) go back n? (c) selective repeat?

ajaysoni1924 asked in Computer Networks Mar 16, 2019

by ajaysoni1924

13.1k views

2 votes

1 answer

15

Andrew S. Tanenbaum Edition 5th Exercise 3 Question 27 (Page No. 253)
(a) The distance from earth to a distant planet is approximately 9 1010 m. What is the channel utilization if a stop-and-wait protocol is used for frame transmission on a 64 Mbps point-to-point link? Assume ... size will the link utilization be 100%? You may ignore the protocol processing times at the sender and the receiver.

ajaysoni1924 asked in Computer Networks Mar 16, 2019

by ajaysoni1924

1.4k views

0 votes

1 answer

16

Andrew S. Tanenbaum Edition 5th Exercise 3 Question 20 (Page No. 253)
A channel has a bit rate of 4 kbps and a propagation delay of 20 msec. For what range of frame sizes does stop-and-wait give an efficiency of at least 50%?

ajaysoni1924 asked in Computer Networks Mar 16, 2019

by ajaysoni1924

587 views

0 votes

1 answer

17

Testbook Test Series: Computer Networks - Stop And Wait
$Que-$ A sender uses a Stop-and-Wait protocol for transmission of $8000 \ K-bits$ size frames on a $1Gbps$ satellite channel with a propagation delay of $400 \ ms$. What will be the link utilization (%) if a probability of single frame error is $0.001?$ $\text{Note – Here Frame size is 8000 K- bits i.e 8}*10^6 \ bits$

Soumya29 asked in Computer Networks Jan 6, 2019

375 views

2 votes

0 answers

18

GATE Overflow | Mock GATE | Test 1 | Question: 38
Consider a half-duplex link with a one-way propagation delay of $P$ seconds and a bandwidth of $B$ bits/sec. The sender and the receiver decide to share the link using Time Division Multiplexing i.e. the sender sends for $T_s$ time and then receiver sends for $T_r$ time and so on. Refer ... $(2/B)*(F+A)+P$ $(1/B)*(F+A)+2*P$ $(2/B)*(F+A)+2*P$

Ruturaj Mohanty asked in Computer Networks Dec 27, 2018

by Ruturaj Mohanty

603 views

0 votes

0 answers

19

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.

John Doe asked in Computer Networks Nov 24, 2018

308 views

0 votes

1 answer

20

#CN What is the channel utilization for the go-back-N protocol with window size of 7 for the problem 3?

iarnav asked in Computer Networks Nov 8, 2018

by iarnav

1.5k views

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Recent questions tagged stop-and-wait