- A
compute.networkUser on the host project
This role grants permission to use the host project's VPC networks and subnets.
- B
resourcemanager.projectIamAdmin on the service project
Why wrong: This role manages IAM policies, not network access.
- C
compute.networkAdmin on the host project
Why wrong: This role allows managing networks but is broader than needed and typically assigned to network admins.
- D
compute.instanceAdmin on the service project
Why wrong: This role allows managing instances in the service project but does not grant access to the host project's network.
Question 211 of 1,000
PCDE Practice Question: Bootstrapping a Google Cloud Organisation for DevOps
This PCDE practice question tests your understanding of bootstrapping a google cloud organisation for devops. 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 DevOps engineer is designing a shared VPC topology for a multi-project environment. Which service project permission allows a project to use subnets from a host project?
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
✓
compute.networkUser on the host project
To use shared VPC, the service project must have the compute.networkUser role on the host project's 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.
- ✓
compute.networkUser on the host project
Why this is correct
This role grants permission to use the host project's VPC networks and subnets.
Related concept
CIDR notation defines the prefix length.
- ✗
resourcemanager.projectIamAdmin on the service project
Why it's wrong here
This role manages IAM policies, not network access.
- ✗
compute.networkAdmin on the host project
Why it's wrong here
This role allows managing networks but is broader than needed and typically assigned to network admins.
- ✗
compute.instanceAdmin on the service project
Why it's wrong here
This role allows managing instances in the service project but does not grant access to the host project's network.
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 PCDE subnetting questions on CIDR, address ranges, and subnet selection.
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Bootstrapping a Google Cloud Organisation for DevOps — study guide chapter
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FAQ
Questions learners often ask
What does this PCDE question test?
Bootstrapping a Google Cloud Organisation for DevOps — This question tests Bootstrapping a Google Cloud Organisation for DevOps — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: compute.networkUser on the host project — To use shared VPC, the service project must have the compute.networkUser role on the host project's subnets.
What should I do if I get this PCDE 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 PCDE subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
About these practice questions
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Last reviewed: Jul 4, 2026
This PCDE 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 PCDE exam.
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