CompTIA A+ Core 1 (220-1001) — Question 127

Which of the following devices can utilize VLANs to secure networks?

Answer options

• A. Switch
• B. Hub
• C. Repeater
• D. Bridge

Correct answer: A

Explanation

A Switch can utilize VLANs to segment network traffic and enhance security by restricting broadcast domains. In contrast, a Hub and a Repeater do not have the capability to manage VLANs as they operate at Layer 1 and simply transmit data without any filtering. A Bridge can segment networks but lacks the advanced functionalities that VLANs provide.