CompTIA Network+ (N10-008) — Question 128

Users attending security training at work are advised not to use single words as passwords for corporate applications. Which of the following does this BEST protect against?

Answer options

• A. An on-path attack
• B. A brute-force attack
• C. A dictionary attack
• D. MAC spoofing
• E. Denial of service

Correct answer: C

Explanation

Using single words as passwords can be easily compromised using a dictionary attack, where attackers utilize a list of common words to guess passwords. The other options such as on-path attacks, brute-force attacks, MAC spoofing, and denial of service do not specifically relate to the vulnerabilities posed by weak password choices, making C the most appropriate choice.