- A
Configure Shared VPC with the Cloud SQL project as the host project
This allows the host project to share its VPC with service projects.
- B
Create a firewall rule allowing ingress from the Cloud SQL instance to the development VPC
Why wrong: Firewall rules are needed for traffic from development VPC to Cloud SQL, but the direction is reversed.
- C
Configure VPC Network Peering between the development VPC and the Cloud SQL VPC
Why wrong: Peering is not needed if Shared VPC is used; the host VPC already contains the Cloud SQL.
- D
Enable Private Services Access on the host VPC
Private Services Access is required for Cloud SQL private IP to be accessible from the VPC.
- E
Attach the development project as a service project to the shared VPC host project
This allows the development project to use the host project's subnets.
PCNE Shared VPC Practice Question
This PCNE practice question tests your understanding of designing, planning, and prototyping a gcp network. 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. A key principle to apply: shared VPC. 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 wants to isolate development and production environments using separate VPC networks within the same project. They need the development VPC to have access to a shared service, such as a Cloud SQL instance, which resides in a separate project. Which THREE actions are required to achieve this? (Choose THREE.)
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
Configure Shared VPC with the Cloud SQL project as the host project
To allow a development VPC in one project to privately access a Cloud SQL instance in a separate project, the recommended approach is to use Shared VPC. The project containing the Cloud SQL instance becomes the host project (A). Private Services Access must be enabled on the host VPC to allocate private IP addresses for the Cloud SQL instance (D). The development project is then attached as a service project to the shared VPC host project, allowing the development VPC to use subnets from the host project and thereby reach the Cloud SQL instance privately (E). VPC peering is not required because Shared VPC provides the connectivity. Firewall rules are needed but not sufficient alone; the correct three actions are A, D, and E.
Key principle: Shared VPC
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure Shared VPC with the Cloud SQL project as the host project
Why this is correct
This allows the host project to share its VPC with service projects.
Related concept
Shared VPC
- ✗
Create a firewall rule allowing ingress from the Cloud SQL instance to the development VPC
Why it's wrong here
Firewall rules are needed for traffic from development VPC to Cloud SQL, but the direction is reversed.
- ✗
Configure VPC Network Peering between the development VPC and the Cloud SQL VPC
Why it's wrong here
Peering is not needed if Shared VPC is used; the host VPC already contains the Cloud SQL.
- ✓
Enable Private Services Access on the host VPC
Why this is correct
Private Services Access is required for Cloud SQL private IP to be accessible from the VPC.
Related concept
Shared VPC
- ✓
Attach the development project as a service project to the shared VPC host project
Why this is correct
This allows the development project to use the host project's subnets.
Related concept
Shared VPC
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
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Shared VPC
- Private Services Access
- Service Project
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
Shared VPC
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.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review shared VPC, then practise related PCNE questions on the same topic to reinforce the concept.
- →
Designing, Planning, and Prototyping a GCP Network — study guide chapter
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Designing, Planning, and Prototyping a GCP Network practice questions
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FAQ
Questions learners often ask
What does this PCNE question test?
Designing, Planning, and Prototyping a GCP Network — This question tests Designing, Planning, and Prototyping a GCP Network — Shared VPC.
What is the correct answer to this question?
The correct answer is: Configure Shared VPC with the Cloud SQL project as the host project — To allow a development VPC in one project to privately access a Cloud SQL instance in a separate project, the recommended approach is to use Shared VPC. The project containing the Cloud SQL instance becomes the host project (A). Private Services Access must be enabled on the host VPC to allocate private IP addresses for the Cloud SQL instance (D). The development project is then attached as a service project to the shared VPC host project, allowing the development VPC to use subnets from the host project and thereby reach the Cloud SQL instance privately (E). VPC peering is not required because Shared VPC provides the connectivity. Firewall rules are needed but not sufficient alone; the correct three actions are A, D, and E.
What should I do if I get this PCNE question wrong?
Review shared VPC, then practise related PCNE questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Shared VPC
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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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