CompTIA Network+ (N10-007) — Question 694

A network administrator walks into a datacenter and notices an unknown person is following closely. The administrator stops and directs the person to the security desk. Which of the following attacks did the network administrator prevent?

Answer options

• A. Evil twin
• B. Tailgating
• C. Piggybacking
• D. Shoulder surfing

Correct answer: B

Explanation

The correct answer is B, as tailgating refers to an unauthorized person following someone into a restricted area without proper credentials. The other options do not apply here: 'Evil twin' involves a fake Wi-Fi hotspot, 'Piggybacking' suggests a legitimate user allowing unauthorized access, and 'Shoulder surfing' is about observing sensitive information rather than physical access.