- A
Cloud Armor
Why wrong: Cloud Armor provides DDoS protection and WAF, not isolation or access control.
- B
Cloud NAT
Why wrong: Cloud NAT enables outbound internet access for private instances, not isolation.
- C
VPC Service Controls and IAM
VPC Service Controls create perimeters around resources to prevent data exfiltration; IAM manages user permissions.
- D
Cloud VPN
Why wrong: Cloud VPN connects on-premises to GCP but does not provide isolation or access controls.
Question 632 of 1,000
Cloud Digital Leader Why Cloud Technology Can Transform Business Practice Question
This GCDL practice question tests your understanding of why cloud technology can transform business. 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 financial services firm must comply with PCI DSS and wants to run workloads on Google Cloud. They need to isolate their production environment from development and enforce granular access controls. Which Google Cloud service 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 and IAM
Google Cloud's VPC Service Controls enable isolation of sensitive data in a VPC perimeter, while IAM provides granular access controls. Together they help meet compliance requirements.
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 Armor
Why it's wrong here
Cloud Armor provides DDoS protection and WAF, not isolation or access control.
- ✗
Cloud NAT
Why it's wrong here
Cloud NAT enables outbound internet access for private instances, not isolation.
- ✓
VPC Service Controls and IAM
Why this is correct
VPC Service Controls create perimeters around resources to prevent data exfiltration; IAM manages user permissions.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Cloud VPN
Why it's wrong here
Cloud VPN connects on-premises to GCP but does not provide isolation or access controls.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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.
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Why Cloud Technology Can Transform Business — study guide chapter
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FAQ
Questions learners often ask
What does this GCDL question test?
Why Cloud Technology Can Transform Business — This question tests Why Cloud Technology Can Transform Business — 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 and IAM — Google Cloud's VPC Service Controls enable isolation of sensitive data in a VPC perimeter, while IAM provides granular access controls. Together they help meet compliance requirements.
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.
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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.
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