Certified Information Privacy Technologist (CIPT) — Question 25

When analyzing user data, how is differential privacy applied?

Answer options

• A. By injecting noise into aggregated datasets.
• B. By assessing differences between datasets.
• C. By applying asymmetric encryption to datasets.
• D. By removing personal identifiers from datasets.

Correct answer: A

Explanation

The correct answer is A because differential privacy relies on the addition of noise to aggregated data to protect individual privacy while still allowing for useful analysis. Options B, C, and D do not effectively ensure individual privacy in the way that differential privacy intends, as they focus on comparison, encryption, or simply removing identifiers without the noise addition.