CDPSE Enhancing Technologies 3

Question 1

A data engineer needs to share a dataset for research that preserves realistic relationships between variables but contains no real individuals' data. Which PET is most appropriate?

Accepted Answer

Synthetic data generation

Answer

Synthetic data generation creates artificial datasets that preserve statistical relationships from real data without including any actual personal information.

Question 2

In a trusted execution environment (TEE), data privacy is protected by:

Accepted Answer

Processing sensitive data in an isolated hardware enclave inaccessible to the host OS

Answer

A TEE (such as Intel SGX or ARM TrustZone) provides a hardware-isolated enclave where code and data are protected even from the operating system or hypervisor.

Question 3

Which privacy-enhancing technology is most commonly used to enable privacy-preserving advertising measurement without sharing individual user data between platforms?

Accepted Answer

Private set intersection (PSI)

Answer

Private set intersection (PSI) allows two parties to find common elements in their datasets without revealing elements that are not in common, used in ad measurement to match conversions without exposing full user lists.

Question 4

What distinguishes l-diversity from k-anonymity as a privacy technique?

Accepted Answer

L-diversity ensures sensitive attribute values are sufficiently diverse within each anonymization group

Answer

L-diversity extends k-anonymity by requiring that each equivalence class contains at least l well-represented values for sensitive attributes, preventing homogeneity attacks.

Question 5

An organization uses a technique where personal identifiers are replaced with randomly generated tokens stored in a separate secure vault. This is best described as:

Accepted Answer

Tokenization

Answer

Tokenization replaces sensitive data with non-sensitive placeholder tokens, with the mapping maintained in a secure token vault, allowing re-identification only by those with vault access.

CDPSE - Certified Data Privacy Solutions Engineer Practice Test

CDPSE - Certified Data Privacy Solutions Engineer Practice Test

CDPSE Enhancing Technologies 3