- A
Migrate for Compute Engine
Why wrong: Migrate for Compute Engine is for migrating virtual machines, not databases.
- B
Cloud Dataflow
Why wrong: Cloud Dataflow is a data processing service, not a database migration tool.
- C
Cloud Scheduler
Why wrong: Cloud Scheduler is for scheduling jobs, not for database migration.
- D
Database Migration Service (DMS)
Database Migration Service (DMS) supports online migration from Oracle to Cloud SQL for PostgreSQL with minimal downtime.
- E
Cloud SQL Auth Proxy
Why wrong: Cloud SQL Auth Proxy is used for secure client connections to Cloud SQL, but it is not a migration tool and is not required for the migration.
Question 627 of 1,000
Google PCA Database Migration Service (DMS) Practice Question
This PCA practice question tests your understanding of analysing and optimising technical and business processes. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: database Migration Service (DMS). Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is planning to migrate a large on-premises Oracle database (10 TB) to Cloud SQL for PostgreSQL. They need to minimise downtime and ensure data integrity. Which TWO services or tools should they use? (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
✓
Database Migration Service (DMS)
Database Migration Service (DMS) supports online migration from Oracle to Cloud SQL for PostgreSQL with minimal downtime by using continuous replication. Cloud SQL Auth Proxy is a tool for secure client connections to Cloud SQL instances; it is not required for the migration process itself. Cloud Dataflow is for data processing, Cloud Scheduler for job scheduling, and Migrate for Compute Engine for VM migration.
Key principle: Database Migration Service (DMS)
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
Why it's wrong here
Migrate for Compute Engine is for migrating virtual machines, not databases.
- ✗
Cloud Dataflow
Why it's wrong here
Cloud Dataflow is a data processing service, not a database migration tool.
- ✗
Cloud Scheduler
Why it's wrong here
Cloud Scheduler is for scheduling jobs, not for database migration.
- ✓
Database Migration Service (DMS)
Why this is correct
Database Migration Service (DMS) supports online migration from Oracle to Cloud SQL for PostgreSQL with minimal downtime.
Related concept
Database Migration Service (DMS)
- ✗
Cloud SQL Auth Proxy
Why it's wrong here
Cloud SQL Auth Proxy is used for secure client connections to Cloud SQL, but it is not a migration tool and is not required for the migration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates may think Cloud SQL Auth Proxy is needed for migration because it is commonly used with Cloud SQL, but it is only for client-side secure connectivity, not for the migration process itself.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Database Migration Service (DMS)
- Online Migration
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Database Migration Service (DMS)
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review database Migration Service (DMS), then practise related PCA questions on the same topic to reinforce the concept.
- →
Analysing and Optimising Technical and Business Processes — study guide chapter
Learn the concepts, then practise the questions
- →
Analysing and Optimising Technical and Business Processes practice questions
Targeted practice on this topic area only
- →
All PCA questions
1,000 questions across all exam domains
- →
Google Professional Cloud Architect study guide
Full concept coverage aligned to exam objectives
- →
PCA practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related PCA practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Managing Implementation and Ensuring Solution and Operations Reliability practice questions
Practise PCA questions linked to Managing Implementation and Ensuring Solution and Operations Reliability.
Designing and Planning a Cloud Solution Architecture practice questions
Practise PCA questions linked to Designing and Planning a Cloud Solution Architecture.
Managing and Provisioning a Solution Infrastructure practice questions
Practise PCA questions linked to Managing and Provisioning a Solution Infrastructure.
Designing for Security and Compliance practice questions
Practise PCA questions linked to Designing for Security and Compliance.
Analysing and Optimising Technical and Business Processes practice questions
Practise PCA questions linked to Analysing and Optimising Technical and Business Processes.
Design and plan a cloud solution architecture practice questions
Practise PCA questions linked to Design and plan a cloud solution architecture.
Manage and provision cloud infrastructure practice questions
Practise PCA questions linked to Manage and provision cloud infrastructure.
Design for security and compliance practice questions
Practise PCA questions linked to Design for security and compliance.
Analyze and optimize technical and business processes practice questions
Practise PCA questions linked to Analyze and optimize technical and business processes.
Manage implementation of cloud architecture practice questions
Practise PCA questions linked to Manage implementation of cloud architecture.
Ensure solution and operations reliability practice questions
Practise PCA questions linked to Ensure solution and operations reliability.
PCA fundamentals practice questions
Practise PCA questions linked to PCA fundamentals.
Practice this exam
Start a free PCA practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this PCA question test?
Analysing and Optimising Technical and Business Processes — This question tests Analysing and Optimising Technical and Business Processes — Database Migration Service (DMS).
What is the correct answer to this question?
The correct answer is: Database Migration Service (DMS) — Database Migration Service (DMS) supports online migration from Oracle to Cloud SQL for PostgreSQL with minimal downtime by using continuous replication. Cloud SQL Auth Proxy is a tool for secure client connections to Cloud SQL instances; it is not required for the migration process itself. Cloud Dataflow is for data processing, Cloud Scheduler for job scheduling, and Migrate for Compute Engine for VM migration.
What should I do if I get this PCA question wrong?
Review database Migration Service (DMS), then practise related PCA questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Database Migration Service (DMS)
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More PCA practice questions
- A company has a requirement to store application logs for 7 years for compliance. They are using Cloud Logging. What is…
- A company is migrating a legacy monolithic application to Google Cloud. The application runs on a single VM and uses a l…
- A financial services company is designing a multi-tier application on Google Cloud. The application must meet PCI DSS co…
- A company is migrating its on-premises workloads to Google Cloud. They have strict compliance requirements that all data…
- A company wants to optimize their cloud spending on Google Cloud. They have a mix of workloads including batch processin…
- An organization wants to enforce that all Compute Engine VMs are created with specific disk encryption keys. Which polic…
Last reviewed: Jul 4, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.