SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a legacy application to AWS and wants to use a containerized architecture. The application requires persistent storage that can be shared across multiple containers in an Amazon ECS cluster. Which TWO storage solutions should the company consider? (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
✓
Amazon Elastic File System (EFS)
Amazon EFS provides a fully managed NFS file system that can be mounted by multiple Amazon ECS tasks across multiple availability zones, making it ideal for shared persistent storage. Amazon FSx for Lustre is a high-performance file system optimized for workloads such as machine learning and high-performance computing, and it also supports concurrent access from multiple ECS tasks. In contrast, Amazon EBS volumes are block-level storage that can only be attached to a single EC2 instance, so they cannot be shared across multiple containers unless using a cluster-aware file system like EFS. Amazon S3 is object storage and does not provide a POSIX-compatible file system interface required by many legacy applications. Amazon RDS is a managed database service, not a shared storage solution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon Simple Storage Service (S3)
Why it's wrong here
S3 is object storage, not a file system.
- ✓
Amazon Elastic File System (EFS)
Why this is correct
EFS is a shared NFS file system that can be mounted by multiple containers.
- ✓
Amazon FSx for Lustre
Why this is correct
FSx for Lustre provides high-performance shared storage.
- ✗
Amazon Elastic Block Store (EBS)
Why it's wrong here
EBS volumes cannot be shared across multiple containers.
- ✗
Amazon Relational Database Service (RDS)
Why it's wrong here
RDS is a database service, not shared file storage.
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.