Google PCA Designing for Security and Compliance Practice Question
A company needs to ensure that only approved container images can be deployed to a GKE cluster. They already use Binary Authorization. What additional step is required to enforce this policy?
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
✓
Create an attestor and attach it to a Binary Authorization policy
Binary Authorization requires an attestor that verifies image signatures. The attestor must be created and attached to a policy that requires at least one attestation.
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 a VPC Service Perimeter
Why it's wrong here
VPC Service Controls prevent data exfiltration, not image verification.
- ✗
Enable Container Registry vulnerability scanning
Why it's wrong here
Vulnerability scanning does not enforce attestation.
- ✓
Create an attestor and attach it to a Binary Authorization policy
Why this is correct
An attestor validates image signatures; the policy enforces that only attested images can be deployed.
- ✗
Assign the container.deployer role to the GKE service account
Why it's wrong here
This grants deployment permissions but does not enforce image verification.
Go deeper
Related to this question
Learn chapter
Google Kubernetes Engine (GKE)
Key term
GKE
GKE is Google's managed Kubernetes service that automates deploying, scaling, and managing containerized applications in the cloud.
Key term
Binary Authorization
Binary Authorization is a security control that ensures only trusted container images are deployed in a Kubernetes or cloud environment.
About these practice questions
This PCA question is part of Courseiva's 955-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.