JN0-281 · Question #55
What is the definition of a trunk interface on a switch?
The correct answer is A. An interface that carries multiple VLANs. A trunk interface on a switch is used to carry traffic for multiple VLANs between switches or between a switch and another network device, like a router. Trunk interfaces use 802.1Q tagging to identify which VLAN the traffic belongs to. Trunk ports are typically used for…
Question
What is the definition of a trunk interface on a switch?
Options
- AAn interface that carries multiple VLANs.
- BAn interface that carries high bandwidth.
- CAn interface that connects directly to powerful servers.
- DAn interface that carries excess traffic.
How the community answered
(26 responses)- A88% (23)
- B4% (1)
- C8% (2)
Explanation
A trunk interface on a switch is used to carry traffic for multiple VLANs between switches or between a switch and another network device, like a router. Trunk interfaces use 802.1Q tagging to identify which VLAN the traffic belongs to. Trunk ports are typically used for inter-switch links or switch-to-router links where multiple VLANs need to be carried over the same physical connection. VLAN traffic is tagged with a VLAN ID to ensure that it is properly identified as it crosses the trunk link. 802.1Q VLAN Tagging: Trunk ports use 802.1Q to tag Ethernet frames with the VLAN ID. This ensures that frames are correctly forwarded to the appropriate VLANs on the other side of the trunk.
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