PCDOE Practice Question: Bootstrapping a Google Cloud organization for DevOps
This PCDOE practice question tests your understanding of bootstrapping a google cloud organization 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 team is migrating their infrastructure to Google Cloud. They have a complex environment with multiple VPC networks, shared services, and separate development and production projects. They want to bootstrap a new organization that supports: (1) centralized network management with shared VPC, (2) separate folders for dev and prod, (3) consistent firewall rules across all projects, (4) a single Cloud NAT for outbound traffic. They have an existing on-premises VPN that must connect to all projects. What is the most efficient approach?
Create separate VPCs for each project and peer them all together, then configure Cloud NAT and VPN in each project.
Why wrong: Complex and hard to manage.
B
Use a single project for all environments and rely on VPC subnets and firewall rules to isolate workloads.
Why wrong: No separation of concerns.
C
Create a folder for networking and a folder for projects, then use a Cloud VPN appliance from the Marketplace.
Why wrong: Does not leverage Cloud VPN or Shared VPC efficiently.
D
Create a host project for Shared VPC, attach all projects as service projects, and configure Cloud NAT and VPN in the host project. Use organization policies to enforce firewall rules.
Shared VPC allows central network; host project handles VPN and NAT.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a host project for Shared VPC, attach all projects as service projects, and configure Cloud NAT and VPN in the host project. Use organization policies to enforce firewall rules.
Option D is correct because Shared VPC allows you to create a host project that centrally manages network resources (VPC, subnets, firewall rules, Cloud NAT, VPN) while attaching development and production projects as service projects. This satisfies all requirements: centralized network management, separate folders for dev/prod, consistent firewall rules via organization policies, a single Cloud NAT for outbound traffic, and a single VPN connection to on-premises that routes to all service projects through the host project's VPC.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Create separate VPCs for each project and peer them all together, then configure Cloud NAT and VPN in each project.
Why it's wrong here
Complex and hard to manage.
✗
Use a single project for all environments and rely on VPC subnets and firewall rules to isolate workloads.
Why it's wrong here
No separation of concerns.
✗
Create a folder for networking and a folder for projects, then use a Cloud VPN appliance from the Marketplace.
Why it's wrong here
Does not leverage Cloud VPN or Shared VPC efficiently.
✓
Create a host project for Shared VPC, attach all projects as service projects, and configure Cloud NAT and VPN in the host project. Use organization policies to enforce firewall rules.
Why this is correct
Shared VPC allows central network; host project handles VPN and NAT.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume VPC peering or a single project with subnets is sufficient, but they miss that Shared VPC is the only Google Cloud-native solution that provides centralized network management, transitive routing, and consistent policy enforcement across multiple projects with separate folders.
Detailed technical explanation
How to think about this question
Shared VPC uses a host project to hold the VPC network, subnets, and firewall rules, while service projects consume those subnets via XPN (Cross-Project Networking). Cloud NAT in the host project provides outbound internet access for all service project resources without additional NAT gateways. The VPNgateway in the host project can terminate a single tunnel to on-premises, and routes are automatically propagated to all service project subnets via the Shared VPC's routing tables, ensuring connectivity without per-project VPN configuration.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Bootstrapping a Google Cloud organization for DevOps — This question tests Bootstrapping a Google Cloud organization for DevOps — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a host project for Shared VPC, attach all projects as service projects, and configure Cloud NAT and VPN in the host project. Use organization policies to enforce firewall rules. — Option D is correct because Shared VPC allows you to create a host project that centrally manages network resources (VPC, subnets, firewall rules, Cloud NAT, VPN) while attaching development and production projects as service projects. This satisfies all requirements: centralized network management, separate folders for dev/prod, consistent firewall rules via organization policies, a single Cloud NAT for outbound traffic, and a single VPN connection to on-premises that routes to all service projects through the host project's VPC.
What should I do if I get this PCDOE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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