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when the station is having a frame to be transmitted it first checks whether the channel is busy. if the channel is busy it backs off for a fixed amount of time and checks the channel again and if the channel is free it transmit the frame otherwise it again goes to the waiting state for some random period of time...
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Distinguish between persistent and non persistent CSMA?
Pesistentent CSMA sense the channel continuously where as non pesistent CSMA resense the channel after a time decided randomly or based on probabilistic work----- Sanjay Bhaumick
Difference between non-persistent and p-persistent csma?
Non-persistent is deferential, while 1-prisistent is selfish.In non-persistent CSMA if the medium is busy, there will be a random delay for retransmission. This reduces the probability of collisions, but wastes the capacity.In 1-persistent CSMA if the medium is busy, the channel will be sensed until it is idle, then it will transmit immediately. This means that collisions are almost guaranteed to occur.
Which access method is used by Ethernet?
CSMA/CD: Carrier Sense Multiple Access / Collision Detection.
How does csma minimize fading?
How does CSMA minimize fading?
Describe one protocol used for Local Area Network?
IP, appletalk, token ring, CSMA/CD, CSMA/CA
To 802.11 standard IEEE specifies what type of access method?
Network+ Guide to Networks answer: Csma/ca
Does Ethernet uses CSMA CA?
No, Ethernet does not use Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA). Instead, Ethernet employs Carrier Sense Multiple Access with Collision Detection (CSMA/CD). In CSMA/CD, devices listen to the network before transmitting and can detect collisions that occur, allowing them to retransmit after a random delay. CSMA/CA is primarily used in wireless networks, such as Wi-Fi, to help prevent collisions from occurring in the first place.
What does the acronym CSMA CD stand for?
The acronym CSMA CD stands for Carrier Sense Multiple Access with Collision Detection. CSMA CD is a set of rules determining how network devices respond when two devices attempt to use a data channel simultaneously.
What mechanism is used by wireless technologies to avoid collisions in the wireless domain?
CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance)
What is the difference between csma CD and csma ca - 42k?
*** In CSMA/CD it detects that a collision take place and resend the frame that was send. On a wirless network losing bandwidth along with time to detect that a collision took place was not acceptable , so CSMA/CA was utilized. ** CSMA/CD can achieve above 70% efficiency under heavy loads compared to CSMA/CA that can only achieve up to 30% efficiency under heavy loads. CSMA/CA network: A network in which the medium access control protocol requires carrier sense and where a station always starts transmission by sending a jam signal; if there is no collision with jam signals from other stations, it begins sending data; otherwise, it stops transmission and then tries again later. CSMA/CD network: A bus network in which the medium access control protocol requires carrier sense and in which exception conditions caused by collision are resolved by retransmission
CSMA stands for?
carier sense multiple access
Which Ethernet standards supports csma CD?
10BaseT
