PCDE Migrate data solutions Practice Question
A team is migrating a 5 TB MySQL database to Cloud SQL using DMS. The full dump phase is taking longer than expected. They suspect network bandwidth is the bottleneck. Which action can they take to improve the dump speed within DMS?
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
✓
Enable parallel dump in the DMS migration job settings.
DMS uses a single-threaded dump by default. Enabling parallel dump can improve speed for large databases.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a larger machine type for the source connection profile.
Why it's wrong here
The connection profile is just metadata; it doesn't affect dump parallelism.
- ✓
Enable parallel dump in the DMS migration job settings.
Why this is correct
Parallel dump uses multiple threads to export data faster, improving throughput.
- ✗
Increase the Cloud SQL instance storage size.
Why it's wrong here
Storage size does not affect dump speed.
- ✗
Switch to a one-time migration job instead of continuous.
Why it's wrong here
One-time migration uses the same dump mechanism; no speed improvement.
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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.