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Recent questions tagged ethernet
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31
Andrew S. Tanenbaum Edition 5th Exercise 4 Question 17 (Page No. 352)
An IP packet to be transmitted by Ethernet is 60 bytes long, including all its headers. If LLC is not in use, is padding needed in the Ethernet frame, and if so, how many bytes?
An IP packet to be transmitted by Ethernet is 60 bytes long, including all its headers.If LLC is not in use, is padding needed in the Ethernet frame, and if so, how manyb...
ajaysoni1924
2.5k
views
ajaysoni1924
asked
Mar 15, 2019
Computer Networks
computer-networks
tanenbaum
ethernet
data-link-layer
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–
0
votes
0
answers
32
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?
Two CSMA/CD stations are each trying to transmit long (multiframe) files. Aftereach frame is sent, they contend for the channel, using the binary exponential backoffalgor...
ajaysoni1924
958
views
ajaysoni1924
asked
Mar 15, 2019
Computer Networks
computer-networks
mac-protocol
ethernet
csma-cd
tann
tanenbaum
+
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0
votes
0
answers
33
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?
A 1-km-long, 10-Mbps CSMA/CD LAN (not 802.3) has a propagation speed of200 m/μsec. Repeaters are not allowed in this system. Data frames are 256 bits long,including 32 b...
ajaysoni1924
673
views
ajaysoni1924
asked
Mar 15, 2019
Computer Networks
computer-networks
tanenbaum
mac-protocol
ethernet
csma-cd
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–
1
votes
2
answers
34
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)?
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...
ajaysoni1924
4.4k
views
ajaysoni1924
asked
Mar 15, 2019
Computer Networks
computer-networks
tanenbaum
lan-technologies
ethernet
csma-cd
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0
votes
0
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35
Data Communications AND Networking by BEHROUZ A. FOROUZAN (5th Edition)
The LLC provides a single link-layer control protocol for all IEEE LANs. This means LLC protocol can provide interconnectivity between different LANs because it makes the MAC sublayer transparent. Does this mean that all the LANs use ... . But don't we see that the frame format of alll are different. So, how is it possbile?
“The LLC provides a single link-layer control protocol for all IEEE LANs. Thismeans LLC protocol can provide interconnectivity between different LANs because itmakes th...
superak96
703
views
superak96
asked
Feb 19, 2019
Computer Networks
computer-networks
llc
ethernet
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0
votes
0
answers
36
Computer Networks[Ethernet]
In Ethernet ..what should be the right condition for collision detection Tt >= 2Tp OR Tt >= 2Tp + Tjam[Tranmission time for jam signal]
In Ethernet ..what should be the right condition for collision detection Tt >= 2Tp OR Tt >= 2Tp + Tjam[Tranmission time for jam signal]
jatin khachane 1
342
views
jatin khachane 1
asked
Dec 31, 2018
Computer Networks
computer-networks
ethernet
+
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8
votes
1
answer
37
GATE Overflow | Mock GATE | Test 1 | Question: 40
You are working on a laptop connected to a $100 \text{Mbps}$ Ethernet LAN. You need a $2 \text{GB}$ file that is on the server in the same LAN. The entire file is also on your pen drive but you have left ... and bring the pen drive, before the transfer on the LAN completes. Assume continuous data transmission on the LAN(no packetization required)).
You are working on a laptop connected to a $100 \text{Mbps}$ Ethernet LAN. You need a $2 \text{GB}$ file that is on the server in the same LAN. The entire file is also on...
Ruturaj Mohanty
1.7k
views
Ruturaj Mohanty
asked
Dec 27, 2018
Computer Networks
go-mockgate-1
numerical-answers
ethernet
network-flow
computer-networks
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–
0
votes
0
answers
38
Channel Utilization
Consider a LAN with 500 stations connected to five 500 m segments. The data rate is 10 Mbps and slot time is 51.2 micro sec, If all the stations transmit With equal probability what is the channel utilization using a frame size of 512 bytes? Note-Number of contention slots are 1.716 how to proceed with these kind of questions?
Consider a LAN with 500 stations connected to five 500 m segments. The data rate is 10 Mbps and slot time is 51.2 micro sec, If all the stations transmit With equal proba...
aditi19
2.0k
views
aditi19
asked
Dec 16, 2018
Computer Networks
computer-networks
ethernet
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0
votes
1
answer
39
#CN Difference between Packet Vs Datagram Vs Frame?
Difference between Packet Vs Datagram Vs Frame?
Difference between Packet Vs Datagram Vs Frame?
iarnav
669
views
iarnav
asked
Dec 1, 2018
Computer Networks
computer-networks
ethernet
osi-model
ip-addressing
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0
votes
0
answers
40
#CN Noob Doubt in Ethernet Frame.
Please someone explain in simplest of terms what is Ethernet Frame and what is Ethernet packet. I can't visualize them and tell them apart from one and another. Any help would be appreciated. Preamble SFD Destination MAC Source Mac Length field DATA ... in this and what is Ethernet packet and what's being received at DLL from Phy layer and NL from Transport layer?
Please someone explain in simplest of terms what is Ethernet Frame and what is Ethernet packet. I can’t visualize them and tell them apart from one and another. Any hel...
iarnav
239
views
iarnav
asked
Nov 28, 2018
Computer Networks
computer-networks
ethernet
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0
votes
0
answers
41
#CN Ethernet Question.
What is the maximum number of hosts that can be present in Ethernet LAN?
What is the maximum number of hosts that can be present in Ethernet LAN?
iarnav
288
views
iarnav
asked
Nov 28, 2018
Computer Networks
computer-networks
ethernet
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–
0
votes
0
answers
42
Ethernet Technology
A switch can connect 10Mbps and a 100Mbps link, while a hub cannot. Why? How many Ethernet adaptors can potentially be manufactured? Express it as a power of 2. If the first bit in an Ethernet MAC address is a zero, the address is what type of address? Find the number of collision domains in following two networks.
A switch can connect 10Mbps and a 100Mbps link, while a hub cannot. Why? How many Ethernet adaptors can potentially be manufactured? Express it as a power of 2.If t...
John Doe
788
views
John Doe
asked
Nov 24, 2018
Computer Networks
ethernet
computer-networks
adapters
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–
0
votes
0
answers
43
Ethernet Transmission
Two stations A, B employing Ethernet standard are competing for access. Suppose, both stations have many frames to send (labelled A1, A2, ... for A and B1, B2, .... for B). Suppose A and B simultaneously transmit their respective first frames ... Now A is attempting A3, while B is still attempting B1. What is the probability that A3's transmission succeeds over B1's?
Two stations A, B employing Ethernet standard are competing for access. Suppose, both stations have many frames to send (labelled A1, A2, ... for A and B1, B2, .... for B...
John Doe
337
views
John Doe
asked
Nov 24, 2018
Computer Networks
computer-networks
ethernet
collision
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–
0
votes
1
answer
44
Baud Rate
what is baud rate exactly? and what does it signifies?
what is baud rate exactly? and what does it signifies?
aditi19
631
views
aditi19
asked
Nov 5, 2018
Computer Networks
computer-networks
bits
baud
ethernet
osi-model
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–
0
votes
0
answers
45
MadeEasy Test Series: Computer Networks - Ethernet
Consider a noisy station that detects transmissions and disrupts them by beginning a competing transmission as soon as it hears the beginning of the transmitted frame, thereby causing a collision. Assume the detector machine, which is on this Ethernet ... 2*10^8 m/s, then the distance( in meters ) of the noisy station from the detector machine is
Consider a noisy station that detects transmissions and disrupts them by beginning a competing transmission as soon as it hears the beginning of the transmitted frame, th...
Bharat patra
485
views
Bharat patra
asked
Nov 4, 2018
Computer Networks
computer-networks
ethernet
made-easy-test-series
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0
votes
2
answers
46
Ethernet
Consider two Station communicating via 1 Mbps Satellite link with propagation delay of 270 msec. The Satellite merely serves to retransmit data received from one station to another,with negligible switch delay. If Ethernet frame size is 1024 bits with 3 bit sequence number,then max. possible data throughput is.................
Consider two Station communicating via 1 Mbps Satellite link with propagation delay of 270 msec. The Satellite merely serves to retransmit data received from one station ...
Na462
2.1k
views
Na462
asked
Oct 20, 2018
Computer Networks
ethernet
computer-networks
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0
votes
0
answers
47
Ethernet
Consider two nodes A and B on the same ethernet segment, and suppose the propagation delay between the two nodes is 225 bit times. Suppose at time both nodes A and B begin to transmit a frame. Assume both nodes transmit a 50-bit jam signal after detecting a collision. For 107 bits per set ethernet, the time at which both nodes A and B sense an idle channel is ________ μsec
Consider two nodes A and B on the same ethernet segment, and suppose the propagation delay between the two nodes is 225 bit times. Suppose at time both nodes A and B begi...
Shivangi Parashar 2
326
views
Shivangi Parashar 2
asked
Oct 15, 2018
Computer Networks
ethernet
computer-networks
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0
votes
1
answer
48
https://gateoverflow.in/3838/gate2005-it-75 self doubt
In a TDM medium access control bus LAN, each station is assigned one time slot per cycle for transmission. Assume that the length of each time slot is the time to transmit 100bits plus the end-to-end propagation delay. Assume ... division multiple access as only one station uses the medium in its slot? please if someone can clear this doubt.
In a TDM medium access control bus LAN, each station is assigned one time slot per cycle for transmission. Assume that the length of each time slot is the time to transmi...
sushmita
444
views
sushmita
asked
Oct 14, 2018
Computer Networks
computer-networks
ethernet
transmission-media
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0
votes
1
answer
49
Ethernet
Na462
521
views
Na462
asked
Sep 15, 2018
Computer Networks
ethernet
computer-networks
lan-technologies
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–
1
votes
0
answers
50
Forouzan chapter 11 Wired Lans:Ethernet
Q: In a Gigabit Ethernet LAN the average size of frame is 1000 bytes .If a noise of 2 ms occurs on the LAN , how many frame are destroyed ? what will happene if Gigabit Ethernet LAN replaced by a) Fast Ethernet LAN b) Standard Ethernet LAN c) 10 Gigabit Ethernet LAN ?
Q: In a Gigabit Ethernet LAN the average size of frame is 1000 bytes .If a noise of 2 ms occurs on the LAN , how many frame are destroyed ?what will happene if Gigabit Et...
Aks9639
759
views
Aks9639
asked
Aug 24, 2018
Computer Networks
computer-networks
ethernet
easy
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–
1
votes
1
answer
51
Made Easy Workbook - Computer Network
The round trip propagation delay for a 100Mbps Ethernet having 48-bit jamming signal is 64 ms. What is the minimum frame size (in bytes)?
The round trip propagation delay for a 100Mbps Ethernet having 48-bit jamming signal is 64 ms. What is the minimum frame size (in bytes)?
Sumit Singh Chauhan
1.7k
views
Sumit Singh Chauhan
asked
Aug 7, 2018
Computer Networks
computer-networks
mac-layer
ethernet
csma-cd
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–
0
votes
0
answers
52
Self Doubt
Why only hexadecimal number system is used in MAC address in an NIC card and other number system ain't ?
Why only hexadecimal number system is used in MAC address in an NIC card and other number system ain't ?
Devshree Dubey
505
views
Devshree Dubey
asked
Jul 4, 2018
Computer Networks
computer-networks
ethernet
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–
0
votes
2
answers
53
self-doubt backoff algorithm
As we know according to backoff algorithm, Suppose there are two stations A and B the range of slots that can be choosen is 0 to 2^n -1 , where n is collision number. My doubt is :- What is the initial value of n(collision number) of each stations A and B? 1 or 0?? What happens to collision number, if A(suppose) wins, is it's n is reinitialized to 1 or 0?
As we know according to backoff algorithm, Suppose there are two stations A and B the range of slots that can be choosen is 0 to 2^n -1 , where n is collision number.My d...
Sandy Sharma
361
views
Sandy Sharma
asked
Jun 25, 2018
Computer Networks
ethernet
computer-networks
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–
1
votes
1
answer
54
Computer network
Consider the network below, which shows four $10 \hspace{0.1cm} Mbps$ LANs connected by two bridges, labelled $B1$ and $B2$. Assume all users (labelled $1$ through $7$) are very chatty and equally chatty. What is the effective data rate seen by user $4$ ? ... data rate seen by user $6$ ? What is the effective data rate seen by user $6$ if the two bridges are replaced with hubs ?
Consider the network below, which shows four $10 \hspace{0.1cm} Mbps$ LANs connected by two bridges, labelled $B1$ and $B2$. Assume all users (labelled $1$ through $7$) ...
Deepesh Pai
477
views
Deepesh Pai
asked
Jun 17, 2018
Computer Networks
computer-networks
ethernet
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–
3
votes
1
answer
55
Maximum Segment Size (MSS in TCP) vs Maximum Transmissible Unit (MTU in Data Link)
It is known that any network can only transmit data packet size equal to (or less than) MTU allowed in the network. If that is the case, and if we have a Path MTU discovery in place, why is ... ) than MTU, will only burden Network Layer with fragmentation overhead. Is there any significant advantage of using MSS ?
It is known that any network can only transmit data packet size equal to (or less than) MTU allowed in the network. If that is the case, and if we have a Path MTU discove...
Arunav Khare
1.0k
views
Arunav Khare
asked
Feb 6, 2018
Computer Networks
computer-networks
ip-packet
network
ethernet
tcp
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–
0
votes
0
answers
56
Self Doubt Ethernet
When do we use $\eta = 1/(1+6.44a)$ and when do we use $\eta = 1/(1+2a)$ {a = pd/td}. I am very confused between efficiency, throughput, utilization...please help! {Pd = Propagation delay, td = transmission delay}
When do we use $\eta = 1/(1+6.44a)$ and when do we use $\eta = 1/(1+2a)$ {a = pd/td}. I am very confused between efficiency, throughput, utilization...please help!{Pd = P...
Sumaiya23
613
views
Sumaiya23
asked
Feb 1, 2018
Computer Networks
ethernet
computer-networks
+
–
4
votes
2
answers
57
MADE EASY TEST SERIES
Assume that X and Y are the only two stations on an Ethernet. Each has a steady queue of frames to send. Both X and Y attempt to transmit a frame, they wait to get the control of channel using binary exponential algorithm. The probability that both ... fifth round of the algorithm (assuming every time both X and Y will collide in back-off race till 4th round) is ________.
Assume that X and Y are the only two stations on an Ethernet. Each has a steady queue of frames to send. Both X and Y attempt to transmit a frame, they wait to get the co...
smsubham
1.0k
views
smsubham
asked
Jan 25, 2018
Computer Networks
csma-cd
ethernet
computer-networks
+
–
0
votes
0
answers
58
CSMA/CD
1. To transmit and receive digital data between islands using the CSMA / CD multiple access protocol do. As shown in the picture below, the distance between any two islands is 10km . Each island has a digital transceiver compliant with the CSMA / CD protocol. It ... At this time, the retransmitted islands How long do you want to wait and start sending again? Of course, CSMA / CD protocol.
1. To transmit and receive digital data between islands using the CSMA / CD multiple access protocoldo. As shown in the picture below, the distance between any two island...
khjkhj1212
595
views
khjkhj1212
asked
Dec 16, 2017
Computer Networks
computer-networks
csma-cd
ethernet
+
–
0
votes
0
answers
59
Ethernet's multiple access protocol(CSMA/CD)
I have question for CSMA/CD assume, 1. Node : 7 nodes(A,B,C,D,Y,X,Z) 2. maximum distance : 10 km (A to Z is 10km, rests are below 10km) 3. transmission speed : 10Mbps Q1. The distance between Node A and Node Z is 10 ... At this time, the retransmitted islands How long do you want to wait and start sending again? Of course, CSMA / CD protocol. Thank you
I have question for CSMA/CDassume,1. Node : 7 nodes(A,B,C,D,Y,X,Z)2. maximum distance : 10 km (A to Z is 10km, rests are below 10km)3. transmission speed : 10Mbps Q1. The...
khjkhj1212
492
views
khjkhj1212
asked
Dec 16, 2017
Computer Networks
computer-networks
csma-cd
ethernet
+
–
0
votes
0
answers
60
CSMA/CD
What is contention window for CSMA/CD? What is it's difference with persistence method?
What is contention window for CSMA/CD? What is it's difference with persistence method?
srestha
301
views
srestha
asked
Dec 9, 2017
Computer Networks
computer-networks
csma-cd
ethernet
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