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PCDE Practice Question: Implement Binary Authorization for containers…
A company wants to implement Binary Authorization for containers deployed to GKE. They need to ensure that only images signed by their internal CI system are allowed to run. Which three components are 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
✓
An attestor in Binary Authorization
Binary Authorization requires images to be signed (e.g., using Cloud Key Management Service or Signify), an attestor that verifies signatures, and an admission controller (Binary Authorization) that enforces the policy on the cluster.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
An attestor in Binary Authorization
Why this is correct
The attestor verifies the signature and creates an attestation that the policy uses.
- ✓
Image signing using a private key
Why this is correct
Images must be signed with a private key to create an attestation.
- ✗
Cloud Build with privilege escalation mode
Why it's wrong here
Privilege escalation is not directly related to Binary Authorization.
- ✓
Binary Authorization policy configured to require attestations
Why this is correct
The policy enforces that only attested images are allowed.
- ✗
Container Registry with vulnerability scanning enabled
Why it's wrong here
Vulnerability scanning is separate from image signing and enforcement.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCDE 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 PCDE exam.