CompTIA Network+ (N10-007) — Question 490

A malicious user sent double-tagged frames on an 802.1Q-enabled port and immediately gained access to additional network resources. Which of the following attacks did the malicious user successfully execute?

Answer options

• A. Evil twin
• B. Man-in-the-middle
• C. DNS poisoning
• D. VLAN hopping

Correct answer: D

Explanation

The correct answer is D, VLAN hopping, as it involves exploiting double-tagged frames to gain access to different VLANs. The other options, such as Evil twin, Man-in-the-middle, and DNS poisoning, do not specifically relate to the exploitation of VLAN tagging and do not achieve the same result of accessing additional network resources through VLAN manipulation.