- A
VPC Service Controls with VPC accessible services
VPC Service Controls perimeters can include VPC accessible services to restrict access to specific Google APIs from a VPC network.
- B
Private Service Connect
Why wrong: Private Service Connect is for accessing managed services via private endpoints, not for restricting API access.
- C
Private Google Access
Why wrong: Private Google Access provides connectivity to Google APIs from instances without external IPs, but does not restrict which APIs are accessible.
- D
Cloud NAT with a firewall rule
Why wrong: Cloud NAT provides outbound internet access but does not filter which APIs are reachable.
Question 317 of 1,000
PCNE Implementing VPC Instances Practice Question
This PCNE practice question tests your understanding of implementing vpc instances. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 wants to restrict access to Google Cloud APIs from a specific VPC network so that only the Google APIs listed in the VPC Service Controls perimeter can be accessed. Which configuration should be used?
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 with VPC accessible services
VPC Service Controls allow you to define perimeters around Google Cloud resources, restricting access to Google APIs based on the perimeter's configuration. VPC accessible services is a feature within VPC Service Controls that limits access to only the APIs listed in the perimeter.
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 with VPC accessible services
Why this is correct
VPC Service Controls perimeters can include VPC accessible services to restrict access to specific Google APIs from a VPC network.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Private Service Connect
Why it's wrong here
Private Service Connect is for accessing managed services via private endpoints, not for restricting API access.
- ✗
Private Google Access
Why it's wrong here
Private Google Access provides connectivity to Google APIs from instances without external IPs, but does not restrict which APIs are accessible.
- ✗
Cloud NAT with a firewall rule
Why it's wrong here
Cloud NAT provides outbound internet access but does not filter which APIs are reachable.
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 PCNE NAT questions on configuration and troubleshooting.
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Implementing VPC Instances — study guide chapter
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FAQ
Questions learners often ask
What does this PCNE question test?
Implementing VPC Instances — This question tests Implementing VPC Instances — 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 with VPC accessible services — VPC Service Controls allow you to define perimeters around Google Cloud resources, restricting access to Google APIs based on the perimeter's configuration. VPC accessible services is a feature within VPC Service Controls that limits access to only the APIs listed in the perimeter.
What should I do if I get this PCNE 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 PCNE 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 PCNE 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 PCNE exam.
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