Davian, a Professional Hacker, Tries Every Possible Combination of Characters

Multiple Choice

Davian, a professional hacker, tries every possible combination of characters to crack his victim's email password. Using this technique, he can crack a six-character password of either upper- or lowercase letters in about ten minutes. Which of the following techniques is used by Davian to obtain access to his victim's email?

A) denial-of-service attack
B) brute force attack
C) pretexting
D) spoofing