Which of the following attacks did the network administrator prevent?

exams N10-008 V4 N10-008 exam 0 Comments

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

Answer: B