- A
Use S3 Transfer Acceleration to upload the database dump directly to an EC2 instance.
Why wrong: S3 Transfer Acceleration is designed for fast uploads to S3, not for database migration with minimal downtime; it cannot provide ongoing replication or rollback.
- B
AWS Database Migration Service (DMS) with ongoing replication from the source to an Amazon RDS for Oracle target.
Correct. AWS DMS with ongoing replication enables near-zero downtime by continuously copying changes, and supports easy rollback by pausing or reversing replication.
- C
AWS Schema Conversion Tool (SCT) to convert the schema and then export the data to flat files for import.
Why wrong: AWS SCT converts the schema but does not migrate data or support ongoing replication; it is used for schema conversion before DMS migration.
- D
AWS Snowball Edge to copy the database files and then restore on Amazon RDS.
Why wrong: AWS Snowball Edge is an offline data transfer device that would require significant downtime to copy and restore data, and does not support ongoing replication or quick rollback.
SAP-C02 AWS Database Migration Service (DMS) Practice Question
This SAP-C02 practice question tests your understanding of accelerate workload migration and modernization. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. A key principle to apply: aWS 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 wants to migrate a legacy Oracle database to AWS with minimal downtime. The database is 2 TB in size and runs on a single on-premises server. The company requires the ability to cut over quickly and roll back if needed. Which AWS service should be used?
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
AWS Database Migration Service (DMS) with ongoing replication from the source to an Amazon RDS for Oracle target.
Option B is correct because AWS Database Migration Service (DMS) with ongoing replication enables continuous data replication from the on-premises Oracle database to Amazon RDS for Oracle, allowing minimal downtime during cutover. It also supports rollback by stopping replication and reverting to the source. Option A is incorrect because S3 Transfer Acceleration is for fast uploads to S3, not for database migration with replication. Option C is incorrect because AWS Schema Conversion Tool (SCT) handles schema conversion, not ongoing data replication. Option D is incorrect because AWS Snowball Edge is an offline data transfer device, which does not meet the minimal downtime requirement.
Key principle: AWS 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.
- ✗
Use S3 Transfer Acceleration to upload the database dump directly to an EC2 instance.
Why it's wrong here
S3 Transfer Acceleration is designed for fast uploads to S3, not for database migration with minimal downtime; it cannot provide ongoing replication or rollback.
- ✓
AWS Database Migration Service (DMS) with ongoing replication from the source to an Amazon RDS for Oracle target.
Why this is correct
Correct. AWS DMS with ongoing replication enables near-zero downtime by continuously copying changes, and supports easy rollback by pausing or reversing replication.
Related concept
AWS Database Migration Service (DMS)
- ✗
AWS Schema Conversion Tool (SCT) to convert the schema and then export the data to flat files for import.
Why it's wrong here
AWS SCT converts the schema but does not migrate data or support ongoing replication; it is used for schema conversion before DMS migration.
- ✗
AWS Snowball Edge to copy the database files and then restore on Amazon RDS.
Why it's wrong here
AWS Snowball Edge is an offline data transfer device that would require significant downtime to copy and restore data, and does not support ongoing replication or quick rollback.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates may think Snowball Edge is suitable for very large databases, but for minimal downtime requirements, an online replication service like DMS is necessary.
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
- AWS Database Migration Service (DMS)
- Ongoing Replication
- Change Data Capture (CDC)
- Minimal Downtime 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
AWS Database Migration Service (DMS)
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
Review aWS Database Migration Service (DMS), then practise related SAP-C02 questions on the same topic to reinforce the concept.
- →
Accelerate Workload Migration and Modernization — study guide chapter
Learn the concepts, then practise the questions
- →
Accelerate Workload Migration and Modernization practice questions
Targeted practice on this topic area only
- →
All SAP-C02 questions
1,746 questions across all exam domains
- →
AWS Certified Solutions Architect Professional SAP-C02 study guide
Full concept coverage aligned to exam objectives
- →
SAP-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SAP-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Design Solutions for Organizational Complexity practice questions
Practise SAP-C02 questions linked to Design Solutions for Organizational Complexity.
Design for New Solutions practice questions
Practise SAP-C02 questions linked to Design for New Solutions.
Continuous Improvement for Existing Solutions practice questions
Practise SAP-C02 questions linked to Continuous Improvement for Existing Solutions.
Accelerate Workload Migration and Modernization practice questions
Practise SAP-C02 questions linked to Accelerate Workload Migration and Modernization.
SAA-C03 VPC practice questions
Practise SAP-C02 questions linked to SAA-C03 VPC.
SAA-C03 S3 lifecycle policy questions
Practise SAP-C02 questions linked to SAA-C03 S3 lifecycle policy questions.
SAA-C03 RDS Multi-AZ questions
Practise SAP-C02 questions linked to SAA-C03 RDS Multi-AZ questions.
SAA-C03 IAM policy practice questions
Practise SAP-C02 questions linked to SAA-C03 IAM policy.
SAA-C03 Route 53 failover questions
Practise SAP-C02 questions linked to SAA-C03 Route 53 failover questions.
SAA-C03 CloudFront practice questions
Practise SAP-C02 questions linked to SAA-C03 CloudFront.
SAA-C03 NAT gateway questions
Practise SAP-C02 questions linked to SAA-C03 NAT gateway questions.
SAA-C03 VPC endpoint questions
Practise SAP-C02 questions linked to SAA-C03 VPC endpoint questions.
Practice this exam
Start a free SAP-C02 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 SAP-C02 question test?
Accelerate Workload Migration and Modernization — This question tests Accelerate Workload Migration and Modernization — AWS Database Migration Service (DMS).
What is the correct answer to this question?
The correct answer is: AWS Database Migration Service (DMS) with ongoing replication from the source to an Amazon RDS for Oracle target. — Option B is correct because AWS Database Migration Service (DMS) with ongoing replication enables continuous data replication from the on-premises Oracle database to Amazon RDS for Oracle, allowing minimal downtime during cutover. It also supports rollback by stopping replication and reverting to the source. Option A is incorrect because S3 Transfer Acceleration is for fast uploads to S3, not for database migration with replication. Option C is incorrect because AWS Schema Conversion Tool (SCT) handles schema conversion, not ongoing data replication. Option D is incorrect because AWS Snowball Edge is an offline data transfer device, which does not meet the minimal downtime requirement.
What should I do if I get this SAP-C02 question wrong?
Review aWS Database Migration Service (DMS), then practise related SAP-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
AWS 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 SAP-C02 practice questions
- A company wants to automate the migration of on-premises servers to AWS. The migration plan includes discovery, assessme…
- A company is using AWS Organizations with hundreds of accounts. The central IT team needs to deploy a common set of AWS…
- A multinational company operates a multi-account AWS environment using AWS Organizations. The security team needs to enf…
- A company has a multi-account AWS environment with a centralized logging account. The security team needs to analyze VPC…
- A company has multiple AWS accounts and wants to centralize logging of all API calls. Which TWO services should be used…
- Match each AWS compute service to its use case.
Last reviewed: Jun 20, 2026
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services 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 SAP-C02 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.