PCSE Ensuring Data Protection Practice Question
A company uses Cloud KMS with a key purpose of ENCRYPT_DECRYPT. They need to rotate the key automatically every 30 days. What must they configure?
⚠ Common exam trap
The common trap in Google Cloud exams is that candidates mistakenly think rotation is configured on the key ring or on individual key versions, when in fact it is always set on the CryptoKey resource itself.
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
✓
Set a rotation period of 30 days on the key.
Cloud KMS allows you to set a rotation period directly on a key (a CryptoKey resource) when its purpose is ENCRYPT_DECRYPT. Configuring a rotation period of 30 days on the key enables automatic, scheduled rotation, where Cloud KMS creates a new key version every 30 days and promotes it to primary, without any manual intervention.
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 30 days on the key.
Why this is correct
Setting the rotation period on the key enables automatic rotation every 30 days.
- ✗
Use a cron job to rotate keys manually every 30 days.
Why it's wrong here
Manual rotation is not automatic; the customer wants automatic rotation.
- ✗
Set a rotation period of 30 days on the key ring.
Why it's wrong here
Rotation period is set on the key, not the key ring.
- ✗
Set a rotation period on the key version.
Why it's wrong here
Rotation period is set on the key, not individual versions.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCSE 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 PCSE exam.