CompTIA Network+ (N10-008) — Question 828

A network engineer is concerned about VLAN hopping happening on the network. Which of the following should the engineer do to address this concern?

Answer options

• A. Configure private VLANs.
• B. Change the default VLAN.
• C. Implement ACLs on the VLAN.
• D. Enable dynamic ARP inspection.

Correct answer: B

Explanation

Changing the default VLAN helps prevent VLAN hopping by ensuring that devices are not operating on the default VLAN that is often targeted for attacks. Configuring private VLANs, implementing ACLs, and enabling dynamic ARP inspection are useful security measures but do not directly address the issue of VLAN hopping as effectively as altering the default VLAN.