CompTIA Network+ (N10-007) — Question 130

A network technician receives a switch that is configured to support VLANs on its ports. At which of the following layers is this switch operating?

Answer options

• A. Layer 1
• B. Layer 2
• C. Layer 3
• D. Layer 4

Correct answer: B

Explanation

The switch is operating at Layer 2 of the OSI model, which is responsible for data link layer functions including VLAN support. Layers 1, 3, and 4 do not handle VLANs; Layer 1 deals with physical connections, Layer 3 manages routing, and Layer 4 involves transport layer protocols.