CompTIA Network+ (N10-007) — Question 384

An attacker has inserted a hub into a trunk link on the local network in an attempt to access the management subnet to attack the networking devices. Which of the following attacks can be used on a trunk link to provide access to the management subnet?

Answer options

• A. Brute force
• B. VLAN hopping
• C. Evil twin
• D. DNS poisoning

Correct answer: B

Explanation

The correct answer is B, VLAN hopping, which allows an attacker to access VLANs that they should not be able to, thereby reaching the management subnet. The other options, such as brute force and DNS poisoning, do not specifically target trunk links or VLANs, and evil twin attacks are related to wireless networks rather than wired VLAN environments.