What is the network segmentation? What is Collision Domain? - Networking

What is the network segmentation? What is Collision Domain?

Network segment is a portion in a computer network where communication among every device is done using the same physical layer. The networking segmentation can be either logical or physical.

A collision domain is a logical network segment. In this segment, data packets can collide to each other. Ethernet is the common protocol used when referring to a collision domain. Collision segment is a group of Ethernet devices in LAN, which runs on CSMA/CD, and is connected through repeaters for the purpose of competing network access. As data can be transmitted through one device in the same collision domain, the other devices simply listens in the network in order to avoid data collisions. Carrier Sense Multiple Access/Collision Detection (CDMA/CD) is an efficient way for avoiding network collisions.
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