PCNE Implementing VPC Instances Practice Question
A company wants to allow instances in a VPC without external IPs to access Google APIs like BigQuery and Cloud Storage. Which configuration is required?
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 subnet
Private Google Access enables instances without external IPs to reach Google APIs via internal IP addresses using the private.googleapis.com (199.36.153.8/30) or restricted.googleapis.com (199.36.153.4/30) VIPs. It must be enabled per subnet.
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 VPC peering with the Google APIs VPC
Why it's wrong here
VPC peering is used to connect two VPCs, not to access Google APIs. Private Google Access uses dedicated Google-managed IP ranges.
- ✓
Enable Private Google Access on the subnet
Why this is correct
Private Google Access is a subnet-level setting that allows instances without external IPs to reach Google APIs via internal IP addresses.
- ✗
Assign external IPs to all instances
Why it's wrong here
Assigning external IPs would provide internet access but does not use internal IP addresses to reach Google APIs. Also, the requirement is to not use external IPs.
- ✗
Configure a Cloud NAT gateway in the region
Why it's wrong here
Cloud NAT provides outbound internet access but does not enable access to Google APIs via internal IP addresses.
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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.