Ethernet switches in full-duplex mode eliminate collisions, as devices can send and receive simultaneously without contention. Half-duplex switched Ethernet may require collision detection, but it's not necessary in full-duplex setups. So option B is correct.
The correct statement is: b. Data collisions do not occur on switched Ethernet LANs that are configured in full-duplex (FDX) mode.
- In full-duplex mode, devices can send and receive data simultaneously without the risk of collisions. Each connection is point-to-point, allowing for a dedicated communication path between two devices.
- In half-duplex mode, devices share the same communication medium, and collisions can occur. However, switched Ethernet networks can operate in full-duplex mode, eliminating the need for collision detection (CD) and avoiding collisions altogether.