Question 11 of 1,446
Deploy scalable and highly available databases in Google Cloud →mediumMultiple ChoiceObjective-mapped
PCDE Practice Question: Deploy scalable and highly available databases in Google Cloud
A global e-commerce platform uses Cloud Spanner multi-region configuration. The compliance team mandates that all write transactions must be committed in a specific geographic region to comply with data sovereignty laws. Which Spanner feature should be used to enforce this requirement?
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 the default leader region to the required region
Spanner's leader region configuration allows you to designate a specific region where all write transactions are coordinated. This ensures that the commit timestamp and transaction processing occur within that region, helping meet data sovereignty requirements.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable customer-managed encryption keys (CMEK)
Why it's wrong here
CMEK controls encryption keys, not the geographic location of writes.
- ✗
Use read-only replicas in the required region
Why it's wrong here
Read-only replicas cannot accept writes. They only serve reads, so they don't control write location.
- ✗
Deploy a regional instance in the required region
Why it's wrong here
A regional instance sacrifices multi-region availability and does not meet global scaling needs.
- ✓
Set the default leader region to the required region
Why this is correct
The leader region option ensures all writes are processed in that region, controlling where data is committed.
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Last reviewed: Jul 4, 2026
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.
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