CompTIA Network+ N10-009 Practice Question

A switch is the correct answer because it creates a separate collision domain for each port, allowing each device connected to the switch to operate without collisions and use the full bandwidth available. A hub, by contrast, shares bandwidth among all devices in a single collision domain, which can lead to collisions and reduced performance. A router, while it can segment network traffic, operates at Layer 3 and deals primarily with logical addressing and routing rather than creating collision-free environments at the data link layer. An access point provides a wireless interface for devices but does not segregate collision domains in the context of wired Ethernet.