- A
Private Service Access
Why wrong: Used for on-premises to VPC connectivity, not access control.
- B
VPC Service Controls
Creates a security perimeter to prevent data exfiltration.
- C
VPC firewall rules
Why wrong: Apply to VM instances, not to BigQuery or Cloud Storage APIs.
- D
IAM conditions
Why wrong: Controls user permissions, not network access.
Question 782 of 1,000
PDE Storing the Data Practice Question
This PDE practice question tests your understanding of storing the data. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
An organization needs to restrict access to BigQuery and Cloud Storage so that data can only be accessed from within a specific VPC network and cannot be exfiltrated. Which Google Cloud feature should they use?
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 (option B) is the correct choice because it creates a security perimeter around Google Cloud services like BigQuery and Cloud Storage, preventing data exfiltration even from within a VPC. It enforces context-aware access based on the VPC network, ensuring data can only be accessed from authorized VPC sources and blocking unauthorized transfers outside the perimeter.
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.
- ✗
Private Service Access
Why it's wrong here
Used for on-premises to VPC connectivity, not access control.
- ✓
VPC Service Controls
Why this is correct
Creates a security perimeter to prevent data exfiltration.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
VPC firewall rules
Why it's wrong here
Apply to VM instances, not to BigQuery or Cloud Storage APIs.
- ✗
IAM conditions
Why it's wrong here
Controls user permissions, not network access.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse VPC firewall rules (which control network traffic) with VPC Service Controls (which control data access at the API layer), leading them to choose firewall rules because they think 'restricting access to a VPC' is purely a network-level concern.
Detailed technical explanation
How to think about this question
VPC Service Controls uses a perimeter-based model where you define a service perimeter that includes specific projects and services (e.g., BigQuery, Cloud Storage). When a request originates from outside the perimeter (even from a valid IAM user), it is denied unless it comes through an allowed VPC network or a bridge. Under the hood, this is enforced by the Access Context Manager, which evaluates context attributes (e.g., VPC network, device policy) before allowing API calls, effectively creating a data exfiltration barrier that IAM alone cannot provide.
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.
TExam Day Tips
- 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Storing the Data — study guide chapter
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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 (option B) is the correct choice because it creates a security perimeter around Google Cloud services like BigQuery and Cloud Storage, preventing data exfiltration even from within a VPC. It enforces context-aware access based on the VPC network, ensuring data can only be accessed from authorized VPC sources and blocking unauthorized transfers outside the perimeter.
What should I do if I get this PDE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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
This PDE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PDE exam.
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