PCNE Implementing VPC Instances Practice Question
An organization has multiple VPCs in the same project. They want to apply consistent firewall rules to all VPCs at the project level. What is the most efficient way to achieve this?
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
✓
Use hierarchical firewall policies at the project level
Hierarchical firewall policies can be applied at the organization, folder, or project level and apply to all VPCs in the resource hierarchy. VPC-level firewall rules are per VPC and require duplication.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use hierarchical firewall policies at the project level
Why this is correct
Correct. Hierarchical policies can be applied at the project level and apply to all VPCs within the project.
- ✗
Create a network firewall policy and attach it to each VPC
Why it's wrong here
Network firewall policies are per VPC, so you would need to attach to each VPC, but it's more scalable than individual rules.
- ✗
Create a firewall rules template using Deployment Manager
Why it's wrong here
Templates can automate rule creation but still result in per-VPC rules.
- ✗
Use VPC Service Controls to enforce rules
Why it's wrong here
VPC Service Controls are for API access control, not firewall rules.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.