- A
Identity-Aware Proxy (IAP)
Why wrong: IAP controls access to applications based on user identity and context, not network restrictions for KMS.
- B
Private Google Access
Why wrong: Private Google Access enables on-premises hosts to reach Google APIs using private IPs, but does not enforce network-based access policies on KMS.
- C
VPC Service Controls
VPC Service Controls allow you to define a security perimeter around Google Cloud services, including Cloud KMS, to restrict access based on network origin.
- D
Cloud Armor
Why wrong: Cloud Armor provides DDoS protection and WAF capabilities, not network-based access control to KMS keys.
Question 976 of 1,000
PDE Storing the Data Practice Question
This PDE practice question tests your understanding of storing the data. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company stores sensitive customer data in BigQuery and Cloud Storage. They want to encrypt the data with customer-managed encryption keys (CMEK) and ensure that access to the key material is restricted to only approved networks. Which additional Google Cloud control should they implement to enforce network-based access to the encryption keys?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
VPC Service Controls
VPC Service Controls (VPC-SC) can create a security perimeter around Cloud KMS and BigQuery/Cloud Storage resources, preventing data exfiltration and restricting access to approved networks. VPC-SC works with CMEK to add an extra layer of network-based access control. Cloud Armor is for HTTP(S) load balancing, IAP is for user identity, and Private Google Access is for on-premises access to public IPs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Identity-Aware Proxy (IAP)
Why it's wrong here
IAP controls access to applications based on user identity and context, not network restrictions for KMS.
- ✗
Private Google Access
Why it's wrong here
Private Google Access enables on-premises hosts to reach Google APIs using private IPs, but does not enforce network-based access policies on KMS.
- ✓
VPC Service Controls
Why this is correct
VPC Service Controls allow you to define a security perimeter around Google Cloud services, including Cloud KMS, to restrict access based on network origin.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cloud Armor
Why it's wrong here
Cloud Armor provides DDoS protection and WAF capabilities, not network-based access control to KMS keys.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
What to study next
Got this wrong? Here's your next step.
Identify which PDE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
Storing the Data — study guide chapter
Learn the concepts, then practise the questions
- →
Storing the Data practice questions
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FAQ
Questions learners often ask
What does this PDE question test?
Storing the Data — This question tests Storing the Data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: VPC Service Controls — VPC Service Controls (VPC-SC) can create a security perimeter around Cloud KMS and BigQuery/Cloud Storage resources, preventing data exfiltration and restricting access to approved networks. VPC-SC works with CMEK to add an extra layer of network-based access control. Cloud Armor is for HTTP(S) load balancing, IAP is for user identity, and Private Google Access is for on-premises access to public IPs.
What should I do if I get this PDE question wrong?
Identify which PDE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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