Google PCA Designing for Security and Compliance Practice Question
A security engineer wants to prevent data exfiltration from a project 'prod-data' by ensuring that only approved VPC networks can access BigQuery datasets. Which GCP service should be used?
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
✓
VPC Service Controls
VPC Service Controls create service perimeters that protect resources by restricting access from outside the perimeter. They can be used to limit BigQuery access to specific VPC networks or IP ranges.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Private Google Access
Why it's wrong here
Private Google Access allows on-premises or VM access to Google APIs using private IPs, but does not restrict data exfiltration.
- ✗
Cloud Armor
Why it's wrong here
Cloud Armor is for HTTP(S) load balancing protection, not for data exfiltration prevention.
- ✗
Cloud NAT
Why it's wrong here
Cloud NAT provides outbound internet access, not inbound access control.
- ✓
VPC Service Controls
Why this is correct
VPC Service Controls creates perimeters to prevent data exfiltration from managed services like BigQuery.
Go deeper
Related to this question
Learn chapter
Identity and Access Management (IAM)
Key term
BigQuery
BigQuery is a fully managed, serverless data warehouse on Google Cloud that lets you run fast SQL queries on massive datasets without managing any infrastructure.
Key term
VPC Service Controls
VPC Service Controls is a Google Cloud security feature that protects the data of managed services by defining perimeters that prevent data exfiltration and unauthorized access across public networks.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA 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 PCA exam.