SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a stateful application that uses local storage on EC2. They want to modernize to a stateless architecture using Amazon EFS for shared storage. What is the best approach to migrate the existing data?
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
✓
Copy data from local storage to EFS using AWS DataSync during a maintenance window
The best approach is to use AWS DataSync to copy data from the local EC2 instance storage to Amazon EFS during a maintenance window, then reconfigure the application to use EFS as shared storage. Option A (AWS FSx for Lustre with S3) is overcomplicated and not appropriate for a simple shared file system migration to EFS. Option C (detach EBS volume and attach to new instance) is not stateless and does not enable shared access. Option D (EBS snapshot restore) retains the stateful nature and does not provide shared storage.
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 Fsx for Lustre with S3 as data repository
Why it's wrong here
This is for HPC workloads, not general migration.
- ✓
Copy data from local storage to EFS using AWS DataSync during a maintenance window
Why this is correct
DataSync efficiently copies data to EFS, enabling a stateless architecture.
- ✗
Detach the EBS volume and attach it to the new EC2 instance
Why it's wrong here
This keeps the state bound to a specific volume, not stateless.
- ✗
Create an EBS snapshot and restore it on the new instance
Why it's wrong here
Snapshots are for backup, not for enabling stateless architecture.
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 |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.