Google PCA Designing for Security and Compliance Practice Question
This PCA practice question tests your understanding of designing for security and compliance. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A security team needs to detect and redact personally identifiable information (PII) in documents stored in Cloud Storage before sharing them with external partners. Which two Google Cloud services should they use together? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cloud Data Loss Prevention (DLP) API
Cloud DLP can scan Cloud Storage for PII and de-identify the data. The scanned and de-identified results can be written back to Cloud Storage. Cloud Dataflow is not needed for this simple use case; Cloud Function can trigger DLP jobs.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Cloud Data Loss Prevention (DLP) API
Why this is correct
DLP can inspect and de-identify PII in Cloud Storage.
Related concept
Static NAT maps one inside address to one outside address.
✓
Cloud Storage
Why this is correct
Cloud Storage stores the documents and can store the de-identified output.
Related concept
Static NAT maps one inside address to one outside address.
✗
Cloud KMS
Why it's wrong here
KMS is for encryption keys, not PII detection.
✗
Cloud Dataflow
Why it's wrong here
Dataflow is not required for DLP scanning of Cloud Storage; DLP has native Cloud Storage inspection.
✗
Cloud NAT
Why it's wrong here
Cloud NAT provides outbound internet access, not PII detection.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCA NAT questions on configuration and troubleshooting.
Designing for Security and Compliance — This question tests Designing for Security and Compliance — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Cloud Data Loss Prevention (DLP) API — Cloud DLP can scan Cloud Storage for PII and de-identify the data. The scanned and de-identified results can be written back to Cloud Storage. Cloud Dataflow is not needed for this simple use case; Cloud Function can trigger DLP jobs.
What should I do if I get this PCA question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCA NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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