Certified Information Privacy Technologist (CIPT) — Question 98

How does k-anonymity help to protect privacy in micro data sets?

Answer options

• A. By ensuring that every record in a set is part of a group of “K” records having similar identifying information.
• B. By switching values between “K” records in order to preserve most statistics while still maintaining privacy
• C. By adding sufficient noise to the data in order to hide the impact of any one individual
• D. By encrypting data using value “K” to create ciphertext

Correct answer: A

Explanation

The correct answer, A, is accurate because k-anonymity requires that each record is indistinguishable from at least 'K-1' other records, which enhances privacy. Options B and C describe other privacy-preserving techniques, such as data swapping and noise addition, which are not part of k-anonymity. Option D relates to encryption, which is a different method of securing data rather than ensuring anonymity.