Google PCA Practice Question: Analysing and Optimising Technical and Business Processes
An engineer wants to migrate an on-premises MySQL database (5.6) to Cloud SQL for MySQL with minimal downtime. Which service should they use?
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
✓
Database Migration Service
Database Migration Service (DMS) supports continuous replication from on-premises MySQL to Cloud SQL, enabling minimal downtime migration. Velostrata (Migrate for Compute Engine) is for VM migration. Storage Transfer Service is for file/object data. BigQuery Data Transfer Service is for analytics data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Migrate for Compute Engine (formerly Velostrata)
Why it's wrong here
This is for migrating VMs, not databases.
- ✗
Storage Transfer Service
Why it's wrong here
Used for moving object data to Cloud Storage, not databases.
- ✗
BigQuery Data Transfer Service
Why it's wrong here
Used for bringing data into BigQuery, not for database migration.
- ✓
Database Migration Service
Why this is correct
DMS provides one-click migration with continuous replication, minimizing downtime.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
BigQuery
BigQuery is a fully managed, serverless data warehouse on Google Cloud that lets you run fast SQL queries on massive datasets without managing any infrastructure.
Key term
Compute Engine
Compute Engine is Google Cloud's Infrastructure-as-a-Service (IaaS) offering that lets you create and run virtual machines on Google's infrastructure.
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