CompTIA A+ 220-902 Question C-21

Which of the following BEST describes the security term known as tailgating?

A. Propping open a secure entrance to gain later access
B. Following behind someone when entering a secure area
C. Removing files from a site using a hidden USB drive
D. Using someone elses logged in computer to access files

Correct Answer: B

Explanation:
http://en.wikipedia.org/wiki/Tailgating