N10-005 · Question #778
Linking two or more switches together so that they can share VLAN information is known as which of the following?
The correct answer is C. Trunking. Trunking is the method of linking switches so that traffic from multiple VLANs can traverse a single inter-switch link, allowing VLAN information to be shared across the network.
Question
Linking two or more switches together so that they can share VLAN information is known as which of the following?
Options
- APort replicating
- BFiltering
- CTrunking
- DSpoofing
How the community answered
(44 responses)- A2% (1)
- B2% (1)
- C86% (38)
- D9% (4)
Why each option
Trunking is the method of linking switches so that traffic from multiple VLANs can traverse a single inter-switch link, allowing VLAN information to be shared across the network.
Port replicating (port mirroring) copies traffic from one port to another for monitoring purposes - it does not share VLAN information between switches.
Filtering refers to restricting traffic based on rules such as MAC or IP addresses - it is not a mechanism for sharing VLAN data between switches.
A trunk link uses a tagging protocol such as IEEE 802.1Q to carry traffic from multiple VLANs between switches simultaneously. This allows VLAN configurations to be shared and extended across multiple switches without requiring a dedicated physical link per VLAN.
Spoofing is a deceptive attack technique where a device impersonates another - it has no role in legitimate VLAN configuration.
Concept tested: 802.1Q VLAN trunking between switches
Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_55_se/configuration/guide/scg3750/swvlan.html
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