- A
VPC Service Controls
VPC Service Controls allow you to define perimeters that restrict access to Cloud Storage to authorized VPCs.
- B
Private Google Access
Private Google Access allows VMs to access Google APIs using internal IPs, which combined with VPC Service Controls ensures only authorized VPCs can access the buckets.
- C
Cloud Armor
Why wrong: Cloud Armor is for DDoS protection and WAF, not for restricting data access at the storage level.
- D
Identity-Aware Proxy (IAP)
Why wrong: IAP controls access to applications, not to Cloud Storage buckets directly.
- E
Cloud NAT
Why wrong: Cloud NAT provides outbound internet connectivity but does not prevent data exfiltration from storage.
Question 805 of 1,000
Cloud Digital Leader Google Cloud Security Practice Question
This GCDL practice question tests your understanding of google cloud security. 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.
A financial services company needs to restrict access to its Cloud Storage buckets containing sensitive customer data. The company wants to prevent data exfiltration by ensuring that only authorized VMs in specific VPCs can access the buckets, and that data cannot be copied to unauthorized locations. Which two Google Cloud services should be used together? (Choose two.)
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 create perimeters around Google Cloud resources like Cloud Storage, preventing data exfiltration to unauthorized networks. Cloud Armor provides DDoS protection and WAF capabilities but does not restrict data access. Cloud NAT is for outbound connectivity, not data exfiltration prevention. Identity-Aware Proxy (IAP) is for application-level access, not storage-level restrictions.
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.
- ✓
VPC Service Controls
Why this is correct
VPC Service Controls allow you to define perimeters that restrict access to Cloud Storage to authorized VPCs.
Related concept
Static NAT maps one inside address to one outside address.
- ✓
Private Google Access
- ✗
Cloud Armor
Why it's wrong here
Cloud Armor is for DDoS protection and WAF, not for restricting data access at the storage level.
- ✗
Identity-Aware Proxy (IAP)
Why it's wrong here
IAP controls access to applications, not to Cloud Storage buckets directly.
- ✗
Cloud NAT
Why it's wrong here
Cloud NAT provides outbound internet connectivity but does not prevent data exfiltration from storage.
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.
Visual reference
What to study next
Got this wrong? Here's your next step.
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 GCDL NAT questions on configuration and troubleshooting.
- →
Google Cloud Security — study guide chapter
Learn the concepts, then practise the questions
- →
Google Cloud Security practice questions
Targeted practice on this topic area only
- →
All GCDL questions
1,000 questions across all exam domains
- →
Google Cloud Digital Leader study guide
Full concept coverage aligned to exam objectives
- →
GCDL practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related GCDL practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Why Cloud Technology Can Transform Business practice questions
Practise GCDL questions linked to Why Cloud Technology Can Transform Business.
Fundamental Cloud Concepts practice questions
Practise GCDL questions linked to Fundamental Cloud Concepts.
Google Cloud Security practice questions
Practise GCDL questions linked to Google Cloud Security.
How Google Cloud Resources Are Managed practice questions
Practise GCDL questions linked to How Google Cloud Resources Are Managed.
Google Cloud Products and Services practice questions
Practise GCDL questions linked to Google Cloud Products and Services.
Why cloud technology is transforming business practice questions
Practise GCDL questions linked to Why cloud technology is transforming business.
Google Cloud products, services, and solutions practice questions
Practise GCDL questions linked to Google Cloud products, services, and solutions.
Scaling with Google Cloud operations practice questions
Practise GCDL questions linked to Scaling with Google Cloud operations.
Trust and security with Google Cloud practice questions
Practise GCDL questions linked to Trust and security with Google Cloud.
GCDL fundamentals practice questions
Practise GCDL questions linked to GCDL fundamentals.
GCDL scenario practice questions
Practise GCDL questions linked to GCDL scenario.
GCDL troubleshooting practice questions
Practise GCDL questions linked to GCDL troubleshooting.
Practice this exam
Start a free GCDL practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this GCDL question test?
Google Cloud Security — This question tests Google Cloud Security — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: VPC Service Controls — VPC Service Controls create perimeters around Google Cloud resources like Cloud Storage, preventing data exfiltration to unauthorized networks. Cloud Armor provides DDoS protection and WAF capabilities but does not restrict data access. Cloud NAT is for outbound connectivity, not data exfiltration prevention. Identity-Aware Proxy (IAP) is for application-level access, not storage-level restrictions.
What should I do if I get this GCDL 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 GCDL NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jul 4, 2026
This GCDL 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 GCDL exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.