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The LAN protocol commonly in use today, ethernet, was designed to expect computers to send data at any time and included rules for detecting when the line was already in use and for handling collisions. When two computers send data packets, the electronics involved also allows the computers to detect the other transmission. When this occurs, the transmitting computers wait a random amount of time and try to send again. The random wait time hopefully meant that each computer waited a different amount of time so that when they tried transmitting again there would not be a collision.
The original ethernet implementation had coaxial cables with multiple computers attached to the same cable. The modern implementation of ethernet has each device on a separate cable with the cables going to a box called a hub or switch. A hub served as a junction where all the data packets passed through and then went to each of the connecting cables.
A switch however kept track of what device was at the end of each cable and managed traffic, directing the data only to the cable leading to the intended destination. This virtually eliminated the collision problem over ethernet cables.
What else can I help you with?
When a collision occurs in a network using CSMACD how do hosts with data to transmit respond after the backoff period has expired?
The hosts return to a listen-before-transmit mode
Difference between a user interface and human-computer interaction?
Human-computer interaction (HCI) is the study of interaction between people (users) and computers. It is often regarded as the intersection of computer science, behavioral sciences, design and several other fields of study.Interaction between users and computers occurs at the user interface (or simply interface), which includes both software and hardware; for example, characters or objects displayed by software on a personal computer's monitor, input received from users via hardware peripherals such as keyboards and mice, and other user interactions with large-scale computerized systems such as aircraft and power plants
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
Dialogue between human being and computer programme that occurs simultaneously in various forms is called as?
man-machine speak
Example of feedback?
This question refers to the communication between a network and networked devices. Feedback between a computer and the network occurs through 'pings,' when each acknowledge each other intermittently.
What happens when two computers transmit through a hub simultaneously?
A collision occurs.
What is the thing that happens when a collision occurs in an Ethernet network?
When a collision occurs, the stations back off and stop transmitting. After a randomly chosen period of delay, the data is resent.
What is the first thing that happens when a collision occurs in a ethernet network?
When a collision occurs, the stations back off and stop transmitting. After a randomly chosen period of delay, the data is resent.
Boat collision occurs when bearing does what?
A boat collision occurs when the bearing between two boats remains constant over time, indicating that they are on a collision course. This is a dangerous situation that requires immediate evasive action to avoid a potential impact.
Where do most motorcycle accidents occurs?
On intersections. It usually involves a collision between a car and a motorycle.
What is the primary collision?
The primary collision is the initial impact that occurs between two objects in a collision event. It is typically the point where the most significant damage or force is generated in a collision. Understanding the dynamics of the primary collision is important in accident reconstruction to determine the sequence of events.
What is the first thing that happens when a collisions occurs in an Ethernet network?
When a collision occurs, the stations back off and stop transmitting. After a randomly chosen period of delay, the data is resent.
What happens on an Ethernet network after a collision occurs?
They send the message again, generated by a random time, so the don't collide again.
What happens when two objects hit each other what specifically occurs?
When two objects hit each other, they experience a collision where forces are exerted upon each other in opposite directions. This can cause a transfer of momentum and energy between the objects. The outcome of the collision depends on factors such as the masses of the objects, their velocities, and the nature of the collision (elastic or inelastic).
In a collision there are actually two collisions that occur?
In a collision, the first collision occurs when the objects physically make contact with each other. The second collision refers to the internal forces that act between the objects involved, such as the deformation of the materials or the transfer of energy between them. Both collisions play a role in determining the outcome of the overall collision.
What is a continent to continent collision?
A continent-continent collision occurs when two continental plates converge and push against each other. This collision can lead to mountain building, as seen in the collision between the Indian Plate and the Eurasian Plate that formed the Himalayas.
In a collision there are actually two collision that occur true or false?
False. In a collision, there is only one collision that occurs between two objects or vehicles. The impact may result in secondary collisions involving other objects or vehicles, but the initial collision involves only the two primary objects.
