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Recent questions tagged csma-cd
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Made Easy Postal Book Package of Computer Network Example Questions from Data link layer Page Number 99, Question Number 2.41
54Y4N
asked
in
Computer Networks
Oct 9, 2023
by
54Y4N
211
views
data-link-layer
csma-cd
computer-networks
0
votes
1
answer
2
Made Easy Test Series 2024
A large population of ALOHA users manages to generate 50 requests/sec, including both original and retransmission time is slotted in units of 40 msec. What is the change of success on the first attempt? A. $e^-1$ B. $e^-2$ C. $ e^-0.5$ D. $(1/2)*e^0.5$
Ray Tomlinson
asked
in
Computer Networks
Aug 16, 2023
by
Ray Tomlinson
435
views
made-easy-test-series
computer-networks
slotted-aloha
csma-cd
0
votes
0
answers
3
medium access control
Consider a CSMA/CD network running at 10 Mb/s with the following operational setting: Interframe Gap (IFG) = 96-bit times Jam signal = 48-bit times The signal speed in the cable is 2 108 m/s There are two hosts P and Q attached to this CSMA/CD ... P and Q stop the transmission due to the collision? (3%) When will P and Q notice that the network turns idle after the collision?
network123
asked
in
Computer Networks
May 2, 2023
by
network123
411
views
computer-networks
csma-cd
0
votes
0
answers
4
p persistant CSMA/CD
There are 10 stations in a LAN always having constant load, ready to transmit. During any particular contention slot, each station transmits with a probability of 0.1. If the average frame takes 122ms to transmit, what is the channel efficiency, if the round trip time ... D) 0.56 As per the answer key, the answer is given as C... Can anyone share the solution to this problem?
NGK
asked
in
Computer Networks
Dec 4, 2022
by
NGK
415
views
computer-networks
probability
csma-cd
2
votes
2
answers
5
What are contention periods in CSMA? Why are they used?
As far I know that, contention slots are required to avoid all channels from transmitting at the same time. But what happens when the contention slot is over? All stations will transmit together and it will lead to jamming of the channel then. What exactly is the role of contention slots and how does it avoid collisions?
h4kr
asked
in
Computer Networks
Nov 24, 2022
by
h4kr
2.3k
views
computer-networks
csma-cd
3
votes
1
answer
6
Computer Network Question
A network using CSMA/CD has a bandwidth of 10 Mbps. If the maximum propagation time including the delays in the devices and ignoring the time needed to send a jamming signal is 25.6 𝜇s, the minimum size of the frame is: (a) 256 bits (b) 1024 bits (c) 128 bits (d) 512 bits
rsansiya111
asked
in
Computer Networks
Oct 8, 2022
by
rsansiya111
1.3k
views
computer-networks
csma-cd
2
votes
1
answer
7
Question from gateforum
Consider 802.3 LAN with 500 stations attached to five 500 - meter segments. The data rate is 10Mbps and the slot time is 51.2μs. If all stations transmit with equal probability, what is the channel utilization using a frame size of 512 bytes(in %)? Assume no. of contention slots are 1.716
h4kr
asked
in
Computer Networks
Oct 2, 2022
by
h4kr
739
views
computer-networks
gateforum-test-series
numerical-answers
csma-cd
0
votes
0
answers
8
Self Doubt
To finding maximum efficiency of ALOHA protocol or CSMA/CD protocol, why double differentiation is used?
Nisha Bharti
asked
in
Computer Networks
Sep 11, 2022
by
Nisha Bharti
244
views
computer-networks
data-link-layer
csma-cd
0
votes
0
answers
9
iitkgp assignment
Two CSMA/CD stations are each trying to transmit long (multi-frame) files.After each frame is sent,they contend for the channel,using the binary exponential back-off algorithm. What is the probability that the contention ends on round k, and what is the mean number of rounds per contention period?
shreyo
asked
in
Computer Networks
Sep 11, 2022
by
shreyo
389
views
computer-networks
csma-cd
probability
0
votes
1
answer
10
Self doubt
In CSMA/CD method why the propagation delay is $2T_p$?
Nisha Bharti
asked
in
Computer Networks
Sep 11, 2022
by
Nisha Bharti
365
views
csma-cd
0
votes
0
answers
11
In exponential backoff algorithm, what does exponentially decreasing means?
Nisha Bharti
asked
in
Computer Networks
Sep 10, 2022
by
Nisha Bharti
140
views
computer-networks
csma-cd
exponential-backoff-algorithm
0
votes
1
answer
12
Test Series: ACE (Networking)
Never done any problem in concept called purging in networking. can anyone tell me how to approach this. is this in syllabus?
ramakrushna
asked
in
Computer Networks
Dec 28, 2021
by
ramakrushna
451
views
ace-test-series
computer-networks
csma-cd
2
votes
1
answer
13
Applied Mock Test
What will be the efficiency of the channel in (% )in CSMA/CD when bandwidth is 20 Mbps. The speed of the signal is 4000 Km/s. The frame size is 1000 bits and the length of the cable 200 m.[ Note: round off the final answer in upto one decimal place]
LRU
asked
in
Computer Networks
Dec 8, 2021
by
LRU
853
views
test-series
computer-networks
csma-cd
ethernet
1
vote
1
answer
14
Applied Test Series
In a CDMA/CD network with a data rate of 20 Mbps, the maximum distance between station pair is found to be 2000 m then what is the minimum transmission time(in sec) for the network if the speed is 4 * 10 ^4 m/sec ?
LRU
asked
in
Computer Networks
Oct 13, 2021
by
LRU
1.1k
views
test-series
computer-networks
csma-cd
ethernet
data-link-layer
0
votes
3
answers
15
UGC NET CSE | January 2017 | Part 2 | Question: 49
In $3G$ network, $\text{W-CDMA}$ is also known as $\text{UMTS}$. The minimum spectrum allocation required for $\text{W-CDMA}$ is $2$ MHz $20$ KHz $5$ KHz $5$ MHz
go_editor
asked
in
Others
Mar 24, 2020
by
go_editor
988
views
ugcnetjan2017ii
mobile-communication
csma-cd
0
votes
0
answers
16
Andrew S. Tanenbaum Edition 5th Exercise 4 Question 43 (Page No. 353)
Write a program to simulate the behavior of the CSMA/CD protocol over Ethernet when there are N stations ready to transmit while a frame is being transmitted. Your program should report the times when each station ... detection and sending of a jamming sequence takes one slot time. All frames are the maximum length allowed.
ajaysoni1924
asked
in
Computer Networks
Mar 15, 2019
by
ajaysoni1924
782
views
computer-networks
ethernet
csma-cd
program
tanenbaum
0
votes
0
answers
17
Andrew S. Tanenbaum Edition 5 Exercise 4 Question 16 (Page No. 352)
Two CSMA/CD stations are each trying to transmit long (multiframe) files. After each frame is sent, they contend for the channel, using the binary exponential backoff algorithm. What is the probability that the contention ends on round k, and what is the mean number of rounds per contention period?
ajaysoni1924
asked
in
Computer Networks
Mar 15, 2019
by
ajaysoni1924
920
views
computer-networks
mac-protocol
ethernet
csma-cd
tann
tanenbaum
0
votes
0
answers
18
Andrew S. Tanenbaum Edition 5 Exercise 4 Question 15 (Page No. 352)
A 1-km-long, 10-Mbps CSMA/CD LAN (not 802.3) has a propagation speed of 200 m/μsec. Repeaters are not allowed in this system. Data frames are 256 bits long, including 32 bits of header, checksum, and ... send a 32-bit acknowledgement frame. What is the effective data rate, excluding overhead, assuming that there are no collisions?
ajaysoni1924
asked
in
Computer Networks
Mar 15, 2019
by
ajaysoni1924
641
views
computer-networks
tanenbaum
mac-protocol
ethernet
csma-cd
1
vote
2
answers
19
Andrew S. Tanenbaum Edition 5 Exercise 4 Question 6 (Page No. 351)
What is the length of a contention slot in CSMA/CD for (a) a 2-km twin-lead cable (signal propagation speed is 82% of the signal propagation speed in vacuum)?, and (b) a 40-km multimode fiber optic cable (signal propagation speed is 65% of the signal propagation speed in vacuum)?
ajaysoni1924
asked
in
Computer Networks
Mar 15, 2019
by
ajaysoni1924
4.2k
views
computer-networks
tanenbaum
lan-technologies
ethernet
csma-cd
1
vote
0
answers
20
Persistent CSMA
Na462
asked
in
Computer Networks
Jan 12, 2019
by
Na462
824
views
computer-networks
csma-cd
2
votes
1
answer
21
MadeEasy Test Series: Computer Networks - Csma Cd
A)340 bits B) 240bits
shraddha priya
asked
in
Computer Networks
Jan 4, 2019
by
shraddha priya
440
views
made-easy-test-series
csma-cd
1
vote
1
answer
22
home work
A broadcast channel has 10 nodes and total capacity of 16Mbps. It uses polling for medium access. Once a node finishes transmission, there is a polling delay of 100 µseconds to poll the next node. Whenever a node is polled, it is allowed to transmit a maximum of 1500 Bytes. The maximum throughput of broadcast channel is: 8 Mbps 14 Mbps 100/11Mbps 750/85 Mbps
Samaa.qudah
asked
in
Computer Networks
Nov 30, 2018
by
Samaa.qudah
609
views
computer-networks
csma-cd
token-ring
1
vote
1
answer
23
home work
Consider a 8Mbps token LAN with a ring latency of 256µsec. A host need to transmit seizes the token, and then it sends a frame of 1024 bytes removes the frame after it has circulated all around the ring and finally releases the token. This process is repeated for every frame. Assuming that only a single host wishes to transmit, then the effective data rate (in Mbps) is? 4.53 5.36 6.7 9.4
Samaa.qudah
asked
in
Computer Networks
Nov 30, 2018
by
Samaa.qudah
3.1k
views
computer-networks
token-ring
csma-cd
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