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200-150 · Question #35

Which device does a network engineer use to break the network environment into smaller collision domains?

The correct answer is A. switch. A switch creates a separate collision domain per port. When a frame arrives on one port, only that port (and the destination port) is involved - other ports are unaffected. This is fundamentally different from a hub, which places all connected devices in the same collision…

Cisco Data Center Networking Technologies

Question

Which device does a network engineer use to break the network environment into smaller collision domains?

Options

  • Aswitch
  • Brouter
  • Chub
  • Drepeater
  • ECSU/DSU

How the community answered

(33 responses)
  • A
    94% (31)
  • C
    3% (1)
  • D
    3% (1)

Explanation

A switch creates a separate collision domain per port. When a frame arrives on one port, only that port (and the destination port) is involved - other ports are unaffected. This is fundamentally different from a hub, which places all connected devices in the same collision domain, forcing them to share bandwidth and take turns transmitting. A router breaks up broadcast domains (not collision domains). Repeaters and hubs extend or regenerate signals but do not segment collision domains. CSU/DSUs are WAN interface devices unrelated to collision domain segmentation.

Topics

#collision domain#Layer 2 switching#network segmentation#hub vs switch

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