PCNE Implementing VPC Instances Practice Question
An organization has two VPCs in the same project: VPC-A and VPC-B. They want instances in VPC-A to reach Cloud Storage buckets without external IPs. What is the simplest solution?
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
✓
Enable Private Google Access on the subnets in VPC-A.
Private Google Access enables instances without external IPs to reach Google API endpoints (including Cloud Storage) via the private IP range. The feature is enabled per subnet, so enabling it on subnets in VPC-A allows those instances to access Cloud Storage.
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 a Cloud NAT gateway in VPC-A and configure firewall rules to allow traffic to Cloud Storage.
Why it's wrong here
Cloud NAT provides outbound internet access, but Private Google Access is more direct and does not require NAT.
- ✗
Peer VPC-A with VPC-B and enable Private Google Access on VPC-B.
Why it's wrong here
Private Google Access is per subnet; peering is unnecessary.
- ✓
Enable Private Google Access on the subnets in VPC-A.
Why this is correct
Private Google Access allows instances to reach Google APIs using internal IPs.
- ✗
Assign external IPs to the instances in VPC-A.
Why it's wrong here
Requirement states no external IPs.
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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.