Which of the following is true about collision domains?

Collision domains refer to a network segment where data packets can collide with one another when being sent on a shared medium. In the context of Ethernet and switching technology, understanding collision domains is essential for optimizing network performance.

Switches operate by creating a separate collision domain for each of their ports. This means that when a device connects to a switch, it is connected to its own collision domain, allowing it to send data without the risk of collisions caused by traffic from other devices. This is a significant advantage over older technologies like hubs, which operate on a single collision domain for all connected devices, leading to increased chances of collisions.

By effectively isolating devices in their own collision domains, switches enhance the efficiency and reliability of data transmissions in the network, allowing multiple devices to communicate simultaneously without interference. This capability is a core feature of switch technology, making the statement that switches eliminate collision domains accurate.

Understanding the nature of collision domains is crucial for networking, especially when designing and managing local area networks, as it helps in identifying and mitigating potential performance issues.