Question

What types of collision control do computers use? Which is usually used where?

Answer 1

Collision control in computers refers to the methods used to prevent or manage collisions on a network. There are two main types of collision control used: CSMA/CD for wired Ethernet networks and CSMA/CA for wireless networks.

Step-by-step explanation:

In computer networks, collision control refers to the methods used to prevent or manage collisions, which occur when multiple devices try to transmit data on the same network at the same time. There are two main types of collision control used in computers:

1. Carrier Sense Multiple Access with Collision Detection (CSMA/CD): This is the most common collision control method used in wired Ethernet networks. It allows devices on a network to detect collisions and react accordingly by delaying transmission and retransmitting data.
2. Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA): This is the collision control method used in wireless networks, such as Wi-Fi. It involves devices listening to the network before transmitting and using techniques to avoid collisions. For example, Wi-Fi devices use a mechanism called RTS/CTS (Request to Send/Clear to Send) to reserve the airtime for transmission.

The choice of collision control method depends on the type of network and the technology used. Wired Ethernet networks typically use CSMA/CD, while wireless networks use CSMA/CA to avoid collisions in the shared medium.