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Recent questions tagged stop-and-wait

2 votes

0 answers

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why is there no reduction in performance of stop and wait ARQ for satellite connections in comparison with other sliding window protocols?

pcla asked in Computer Networks Jan 27

by pcla

130 views

4 votes

1 answer

2

GO Classes Test Series 2024 | Mock GATE | Test 11 | Question: 32
On a wireless link, the probability of successfully sending a packet is $0.1.$ A stop-and-wait protocol is used to transfer data across the link. The channel condition is assumed to be independent of ... is the expected number of packets that experience timeout to send one packet? (Timeout occurs on unsuccessful transmission)

GO Classes asked in Computer Networks Jan 13

530 views

9 votes

7 answers

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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, 2023

by admin

12.0k views

3 votes

1 answer

4

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 5, 2023

1.7k views

1 vote

1 answer

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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 5, 2023

1.7k views

0 votes

1 answer

6

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

268 views

0 votes

1 answer

7

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

Nisha Bharti asked in Computer Networks Sep 27, 2022

by Nisha Bharti

404 views

1 vote

2 answers

8

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

806 views

0 votes

0 answers

9

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

442 views

1 vote

0 answers

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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

1.2k views

5 votes

2 answers

11

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

703 views

5 votes

1 answer

12

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

1.2k views

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?

LRU asked in Computer Networks Oct 13, 2021

by LRU

1.0k views

1 vote

1 answer

14

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

725 views

0 votes

1 answer

15

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

760 views

4 votes

2 answers

16

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

17.0k views

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Recent questions tagged stop-and-wait