Google PCA Designing for Security and Compliance Practice Question
A company needs to ensure that data stored in Cloud Storage is encrypted with customer-managed keys that are rotated every 90 days. Which two steps must be taken to achieve this? (Choose TWO).
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 a key ring and a key in Cloud KMS
A CMEK key must be created in Cloud KMS, and the Cloud Storage bucket must be configured to use that CMEK key.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set a rotation period of 90 days on the Cloud KMS key
Why it's wrong here
Rotation is set on the key itself, not on the bucket.
- ✗
Enable CSEK on the bucket
Why it's wrong here
CSEK is a different encryption method.
- ✗
Grant the Cloud Storage service account access to the Cloud KMS key
Why it's wrong here
For CMEK, Cloud Storage uses the customer's project service account, but granting access is done automatically when setting the bucket default key.
- ✓
Create a key ring and a key in Cloud KMS
Why this is correct
A CMEK key is created in Cloud KMS.
- ✓
Set the default encryption key on the Cloud Storage bucket to the Cloud KMS key
Why this is correct
This configures the bucket to use the CMEK key.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Cloud KMS
Cloud KMS (Key Management Service) is a cloud-based service that lets you create, manage, and use encryption keys to protect your data at rest and in transit.
Key term
Cloud storage
Cloud storage is a service that lets you save data on remote servers accessed over the internet instead of on your computer's hard drive.
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.