Google PCA Designing for Security and Compliance Practice Question
A security team wants to prevent data exfiltration from a GKE cluster to external storage. They need to restrict access to Cloud Storage buckets from the cluster without using private IPs. Which solution should they implement?
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
✓
Implement VPC Service Controls with a service perimeter
VPC Service Controls use service perimeters to protect resources and prevent data exfiltration from authorized networks, including GKE clusters, to external resources.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure firewall rules to block outbound traffic to Cloud Storage
Why it's wrong here
Firewall rules control network traffic but cannot selectively restrict access to specific Cloud Storage buckets.
- ✗
Enable Cloud Armor on the GKE cluster
Why it's wrong here
Cloud Armor provides WAF and DDoS protection for HTTP(S) Load Balancers, not data exfiltration prevention.
- ✗
Use Private Google Access for on-premises access
Why it's wrong here
Private Google Access allows on-premises clients to access Google services via private IP, but does not prevent data exfiltration from GKE.
- ✓
Implement VPC Service Controls with a service perimeter
Why this is correct
VPC Service Controls create perimeters around GCP resources (e.g., Cloud Storage) to block data exfiltration to unauthorized networks.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
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.
Key term
Data
Data is raw, unprocessed information, like numbers, words, or measurements, that can be stored, processed, and analyzed by computers.
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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.