PECB Exam GDPR Topic 1 Question 5 Discussion

Actual exam question for PECB's GDPR exam

Question #: 5
Topic #: 1

[All GDPR Questions]

Which statement below regarding the difference between anonymization and pseudonymization is correct?

AAnonymization is reversible and the original data can be retrieved with the use of a public key encryption, while pseudonymization is not reversible and can be used only for non-identifiable data, such as gender, nationality, and occupation

BAnonymization is not reversible and the original data cannot be attributed to an individual, while pseudonymization is reversible and the original data can be attributed to an individual with the use of additional information

CAnonymization is the process of replacing a portion of the data with a common value to keep the identity of individuals anonymous, whereas pseudonymization is the process of adding mathematical noise to the data

Show Suggested Answer

Suggested Answer: B

According to GDPR Recital 26, anonymization permanently removes any possibility of re-identification, making it irreversible. Pseudonymization, as defined in Article 4(5), is reversible if the correct key or additional information is available. Pseudonymization still qualifies as personal data under GDPR, whereas anonymized data falls outside the scope of GDPR.

by Carmela at Mar 20, 2025, 07:48 AM

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