Analysts should see only the last four digits of a card number. What fits?
Why B is the answer
Data masking
Data masking shows analysts only part of a value, such as the last four digits.
In detail
- Data masking shows only part of a value.
- Masking changes what users see.
Use case
An illustrative scenario, not a real incident.
Support analysts see only the last four digits, and the full number stays protected.
See it in different ways
flowchart TD A["Protect data"] --> B["Cloud IAM and organization policies"] A --> C["Encryption and key management"] A --> D["Cloud DLP for personal data"] A --> E["Regional storage for sovereignty"]
mindmap
root((Governance))
Location
Regional storage
Organization policies
Protection
Cloud DLP
Data masking
Separation
Project per environment
Ownership
Federated governanceflowchart LR S0["Query"] --> S1["Masking rule"] --> S2["Last four digits"]
Key point: Masking limits what is shown.
Why the other options are wrong
- A. A larger cluster
- Size does not hide data.
- C. Column clustering
- Clustering organizes data.
- D. A failover
- A failover is about availability.