Which statement correctly describes the collision domain behavior of a network hub?

Which statement correctly describes the collision domain behavior of a network hub?

• A. Collision domains do not apply to hubs
• B. Each port on a hub is a separate collision domain
• C. All ports on a hub make up one collision domain
• D. Hubs automatically segment collision domains by VLAN

Answer: (C)

Collision domains are the portion of a network where signals can collide when two devices transmit at the same time. A hub is a simple physical repeater that sends the incoming signal out to every connected port. Because every device attached to the hub shares the same physical medium, they all contend for access and any transmission can collide with others. That means all ports on a hub belong to one single collision domain. Switches, on the other hand, create separate collision domains for each port, which is why a device connected to a switch doesn’t collide with devices on other ports. VLANs can further segment networks at layer 2, but hubs do not perform VLAN segmentation.

Collision domains are the portion of a network where signals can collide when two devices transmit at the same time. A hub is a simple physical repeater that sends the incoming signal out to every connected port. Because every device attached to the hub shares the same physical medium, they all contend for access and any transmission can collide with others. That means all ports on a hub belong to one single collision domain. Switches, on the other hand, create separate collision domains for each port, which is why a device connected to a switch doesn’t collide with devices on other ports. VLANs can further segment networks at layer 2, but hubs do not perform VLAN segmentation.