Cisco Cyber Security Practice Exam

Which type of attack uses a file containing common words, phrases, and passwords?

1. Brute-force

2. Dictionary

3. Phishing

4. Man-in-the-middle

The correct answer is: Dictionary

The correct answer is dictionary, as a dictionary attack specifically targets the use of a list of common words, phrases, and passwords to gain unauthorized access to accounts or systems. This method relies on the fact that many users choose weak passwords based on recognizable words or simple variations of them. By systematically trying each word or phrase from the list, an attacker can exploit these predictable choices to break into an account. The effectiveness of a dictionary attack stems from its focus on commonly used passwords, making it more efficient than brute-force attacks, which attempt all possible combinations of characters. While phishing involves tricking users into giving up their credentials or downloading malicious software, and man-in-the-middle attacks focus on intercepting communications between two parties, a dictionary attack is specifically centered on exploiting inadequate password choices made by individuals.