CCNA Routing and Switching (legacy) — Question 137

What are three advantages of VLANs? (Choose three.)

Answer options

• A. They establish broadcast domains in switched networks.
• B. They provide a low-latency internetworking alternative to routed networks.
• C. They utilize packet filtering to enhance network security.
• D. They can simplify adding, moving, or changing hosts on the network.
• E. They allow access to network services based on department, not physical location.
• F. They provide a method of conserving IP addresses in large networks.

Correct answer: A, D, E

Explanation

Option A is correct as VLANs do establish separate broadcast domains, which improves network efficiency. Option D is also correct because VLANs greatly simplify the process of adding, moving, or changing hosts by allowing logical grouping regardless of their physical location. Option E is correct as VLANs allow for control of access to network services based on department affiliation rather than physical placement. Options B, C, and F do not accurately describe the primary advantages of VLANs.