JN0-102 · Question #283
Which two statements are true regarding an Ethernet collision domain? (Choose two.)
The correct answer is A. If a switch is used, the collision domain is limited to each device and the switch. C. If a hub is used, the collision domain includes all devices connected to the hub. Hubs create a single large collision domain for all connected devices, whereas switches segment the network into smaller collision domains, typically one per port.
Question
Which two statements are true regarding an Ethernet collision domain? (Choose two.)
Options
- AIf a switch is used, the collision domain is limited to each device and the switch.
- BIf a hub is used, the collision domain is limited to each device and the hub.
- CIf a hub is used, the collision domain includes all devices connected to the hub.
- DIf a switch is used, the collision domain includes all devices connected to the switch.
How the community answered
(36 responses)- A89% (32)
- B3% (1)
- D8% (3)
Why each option
Hubs create a single large collision domain for all connected devices, whereas switches segment the network into smaller collision domains, typically one per port.
When a switch is used, each port on the switch generally forms its own collision domain, isolating the collision potential to the connection between the device and that specific switch port.
A hub does not limit the collision domain to each device and itself; instead, all devices connected to a hub share one large collision domain.
A hub is a Layer 1 device that simply repeats signals to all connected ports, causing all devices connected to the hub to share a single, large collision domain.
A switch breaks up collision domains, meaning that devices connected to different ports on a switch are in separate collision domains, not a single one encompassing all devices.
Concept tested: Ethernet collision domains with hubs and switches
Source: https://www.cisco.com/c/en/us/support/docs/lan-switching/ethernet/10570-41.html
Topics
Community Discussion
No community discussion yet for this question.