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CSMA/CD (carrier sense multiple access/collision detection) CD (collision detection) defines what happens when two devices sense a clear channel, then attempt to transmit at the same time. A collision occurs, and both devices stop transmission, wait for a random amount of time, then retransmit. This is the technique used to access the 802.3 Ethernet network channel. This method handles collisions as they occur, but if the bus is constantly busy, collisions can occur so often that performance drops drastically. It is estimated that network traffic must be less than 40 percent of the bus capacity for the network to operate efficiently. If distances are long, time lags occur that may result in inappropriate carrier sensing, and hence collisions.
CSMA/CA (carrier sense multiple access/collision avoidance) In CA (collision avoidance), collisions are avoided because each node signals its intent to transmit before actually doing so. This method is not popular because it requires excessive overhead that reduces performance.
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What is the significance of COLREGS in the collision avoidance in the high seas?
COLREGS (International Regulations for Preventing Collisions at Sea) provide a standardized set of rules to prevent collisions between vessels at sea. By following these rules, ships can navigate safely and avoid accidents. These regulations help establish rights and responsibilities for vessels, ensuring a consistent approach to collision avoidance on the high seas.
What are the differences between phase detection and contrast detection in terms of their performance in autofocus systems?
Phase detection and contrast detection are two common methods used in autofocus systems. Phase detection is generally faster and more accurate than contrast detection because it measures the difference in phase between two light paths to determine focus. Contrast detection, on the other hand, analyzes the contrast between adjacent pixels to find focus, which can be slower and less accurate, especially in low light conditions.
Who is responsible for avoiding a collision between two vessels?
Both vessels are responsible for avoiding a collision. This means that both vessels must take action to prevent a collision from occurring, following the rules and regulations of navigation at sea. Collision avoidance measures typically involve communication, maintaining a proper lookout, and taking evasive maneuvers when necessary.
Describe two major differences between the Warning Bit method and the Random Early Detection method?
The number of pandas involved and the giantness of the associated dicks.
Difference between the tax planning and tax avoidance?
Tax planning is legal while tax avoidance will get you into a lot of trouble
How the detection of a small iron rich core supports the theory that the moon was formed from a collision between Earth and a Mars sized object?
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What is the difference between avoidance personality and avoidance personality disorder?
In the personality it does not necessarily interfere with your life it is just who you are, the disorder is a chronic condition that cripples you.
What do you mean by smile detection by boosting pixel differences?
detecting the smile in the picture by making the picture into a clarity picture. i.e. by boosting of pixels(decreasing the space between pixels of an image)
Is the energy of collision between two reactant particles is frequently absorbed by collision with a third particle?
Yes, the energy of collision between two reactant particles can be absorbed by collision with a third particle. This process, known as collision-induced relaxation, can lead to the redistribution of energy among the molecules involved in the collision.
Basic types of conflict in psychology-?
Aproach-approach conflict: a choice must be made between two attractive goals. The problem is that you can choose just one of the two goals Avoidance-aviodance conflict: a choice must be made between two unattractive goals. ("caught between a rock and a hard place") Approach-avoidance conflict: a choice must be made about whether to pursue a single goal that has both attractive and unattractive aspects.
How is energy conserved in an elastic collision between two objects?
In an elastic collision between two objects, energy is conserved because the total kinetic energy before the collision is equal to the total kinetic energy after the collision. This means that no energy is lost or gained during the collision, and it is transferred between the objects without any loss.
What are the main differences between the Ring Doorbell first generation and the newer models?
The main differences between the Ring Doorbell first generation and newer models are improved video quality, advanced motion detection, customizable motion zones, and additional features like two-way talk and enhanced security options.
