- A
Service project VMs can use internal IP addresses from the shared subnets.
VMs in service projects are assigned internal IPs from the shared subnets.
- B
Shared VPC supports transitive peering across service projects.
Why wrong: Shared VPC does not support transitive peering; peering is non-transitive.
- C
IAM policies on shared subnets can be delegated to service project administrators.
Shared VPC allows delegating subnet-level IAM to service project administrators.
- D
Service project administrators can create subnets in the host project.
Why wrong: Subnet creation is a host project privilege; service projects cannot create subnets in the host project.
- E
Service projects cannot have their own VPCs when using Shared VPC.
Why wrong: Service projects can have their own VPCs in addition to using Shared VPC subnets.
PCNE Practice Question: Designing, Planning, and Prototyping a GCP Network
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. 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 uses Shared VPC to centralize network management. The host project contains subnets for production and development environments. Which two statements accurately describe the capabilities of Shared VPC? (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
Service project VMs can use internal IP addresses from the shared subnets.
Shared VPC allows a host project to share subnets with service projects. IAM on shared subnets can be delegated to service project administrators, and VMs in service projects can use internal IPs from the shared subnets.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Service project VMs can use internal IP addresses from the shared subnets.
- ✗
Shared VPC supports transitive peering across service projects.
Why it's wrong here
Shared VPC does not support transitive peering; peering is non-transitive.
- ✓
IAM policies on shared subnets can be delegated to service project administrators.
Why this is correct
Shared VPC allows delegating subnet-level IAM to service project administrators.
Related concept
CIDR notation defines the prefix length.
- ✗
Service project administrators can create subnets in the host project.
Why it's wrong here
Subnet creation is a host project privilege; service projects cannot create subnets in the host project.
- ✗
Service projects cannot have their own VPCs when using Shared VPC.
Why it's wrong here
Service projects can have their own VPCs in addition to using Shared VPC subnets.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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 block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PCNE subnetting questions on CIDR, address ranges, and subnet selection.
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Designing, Planning, and Prototyping a GCP Network — study guide chapter
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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 — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Service project VMs can use internal IP addresses from the shared subnets. — Shared VPC allows a host project to share subnets with service projects. IAM on shared subnets can be delegated to service project administrators, and VMs in service projects can use internal IPs from the shared subnets.
What should I do if I get this PCNE question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PCNE subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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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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