CompTIA Security+ (SY0-601) — Question 184

Which of the following controls would provide the BEST protection against tailgating?

Answer options

• A. Access control vestibule
• B. Closed-circuit television
• C. Proximity card reader
• D. Faraday cage

Correct answer: A

Explanation

An Access control vestibule is designed to ensure that only one person can enter at a time, effectively preventing unauthorized access through tailgating. Closed-circuit television can monitor activity but does not physically prevent tailgating. A proximity card reader allows entry but does not restrict multiple people from entering simultaneously, and a Faraday cage is not relevant to controlling physical access.