CompTIA Network+ (N10-007) — Question 329

An attacker quickly gains administrative access to a network device. Which of the following MOST likely allowed the attacker to guess the password?

Answer options

• A. Man in the middle
• B. A brute-force attack
• C. A hash comparison
• D. Rainbow tables

Correct answer: D

Explanation

Rainbow tables are precomputed tables used to reverse cryptographic hash functions, making it easier for an attacker to guess passwords. While a brute-force attack could also work, rainbow tables are specifically designed for this purpose and can be more efficient. The other options do not directly relate to password guessing in the same way.