- A
Use AWS Application Migration Service (MGN) to migrate the application server to Amazon EC2
MGN automates migration with minimal code changes.
- B
Use Amazon EFS to replace the proprietary file-based storage
EFS provides a managed, highly available file system.
- C
Migrate the proprietary storage to Amazon S3
Why wrong: S3 is object storage, not suitable as a direct replacement for file-based or relational storage.
- D
Migrate the proprietary storage to Amazon RDS for PostgreSQL
Why wrong: Migrating proprietary file-based storage to Amazon RDS for PostgreSQL is not a valid strategy because it requires rewriting the application to use JDBC/SQL, contradicting the goal of minimizing code changes. Additionally, file-based storage is not suited for relational databases.
- E
Refactor the application into microservices and deploy on Amazon EKS
Why wrong: Refactoring to microservices requires significant code changes, not minimal.
SAP-C02 AWS Application Migration Service (MGN) 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 Application Migration Service (MGN). 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 modernize a legacy Java application that runs on a single on-premises server. The application uses a proprietary file-based storage system. The company wants to migrate to AWS with the following goals: reduce operational overhead, improve availability, and minimize code changes. Which THREE strategies should the company use? (Choose three.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
Use AWS Application Migration Service (MGN) to migrate the application server to Amazon EC2
AWS Application Migration Service (MGN) enables lift-and-shift of the application server to Amazon EC2 with minimal code changes, reducing operational overhead. Amazon EFS provides a managed NFS file system that can replace the proprietary file-based storage without code modifications, improving availability. Option D (RDS) is incorrect because migrating file-based data to a relational database would require significant application changes, contradicting the goal of minimizing code changes.
Key principle: AWS Application Migration Service (MGN)
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 AWS Application Migration Service (MGN) to migrate the application server to Amazon EC2
Why this is correct
MGN automates migration with minimal code changes.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
AWS Application Migration Service (MGN)
- ✓
Use Amazon EFS to replace the proprietary file-based storage
Why this is correct
EFS provides a managed, highly available file system.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
AWS Application Migration Service (MGN)
- ✗
Migrate the proprietary storage to Amazon S3
Why it's wrong here
S3 is object storage, not suitable as a direct replacement for file-based or relational storage.
- ✗
Migrate the proprietary storage to Amazon RDS for PostgreSQL
Why it's wrong here
Migrating proprietary file-based storage to Amazon RDS for PostgreSQL is not a valid strategy because it requires rewriting the application to use JDBC/SQL, contradicting the goal of minimizing code changes. Additionally, file-based storage is not suited for relational databases.
- ✗
Refactor the application into microservices and deploy on Amazon EKS
Why it's wrong here
Refactoring to microservices requires significant code changes, not minimal.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often assume that any managed storage can replace file-based storage without code changes. However, Amazon EFS is a drop-in NFS replacement, while RDS requires application modifications.
Detailed technical explanation
How to think about this question
AWS MGN uses continuous block-level replication to synchronize the source server with a staging area in AWS, then launches a fully provisioned EC2 instance during cutover. For the proprietary file-based storage, Amazon EFS provides a POSIX-compliant file system that can be mounted directly on the EC2 instance, preserving the existing file I/O calls without code changes, unlike Amazon S3 which uses object storage APIs. Amazon RDS for PostgreSQL is suitable for structured data but cannot replace a file-based storage system without rewriting the application's data access layer.
KKey Concepts to Remember
- AWS Application Migration Service (MGN)
- Amazon EFS
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 Application Migration Service (MGN)
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 Application Migration Service (MGN), then practise related SAP-C02 questions on the same topic to reinforce the concept.
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Accelerate Workload Migration and Modernization — study guide chapter
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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 Application Migration Service (MGN).
What is the correct answer to this question?
The correct answer is: Use AWS Application Migration Service (MGN) to migrate the application server to Amazon EC2 — AWS Application Migration Service (MGN) enables lift-and-shift of the application server to Amazon EC2 with minimal code changes, reducing operational overhead. Amazon EFS provides a managed NFS file system that can replace the proprietary file-based storage without code modifications, improving availability. Option D (RDS) is incorrect because migrating file-based data to a relational database would require significant application changes, contradicting the goal of minimizing code changes.
What should I do if I get this SAP-C02 question wrong?
Review aWS Application Migration Service (MGN), then practise related SAP-C02 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
AWS Application Migration Service (MGN)
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Last reviewed: Jun 11, 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.
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