The correct answer is Amazon EFS and Amazon FSx for Lustre, as both provide shared storage for ECS containers that can be accessed by multiple tasks simultaneously. Amazon EFS offers a fully managed, elastic NFS file system ideal for general-purpose shared storage across containers, while FSx for Lustre delivers high-performance, POSIX-compliant shared storage optimized for compute-intensive workloads. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this question tests your understanding of container storage patterns and the critical distinction between block storage (EBS), which is single-instance, and shared file systems. A common trap is selecting EBS because it is persistent, but it cannot be mounted by multiple containers across different hosts. Remember the memory tip: "Shared means file system, not block" — if multiple containers need concurrent access, think EFS or FSx, never EBS.
SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
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. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 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 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)
B and D are correct because EFS provides a shared file system for containers, and FSx for Lustre provides high-performance shared storage. A is wrong because EBS volumes are attached to a single EC2 instance. C is wrong because S3 is object storage, not a file system. E is wrong because RDS is a database, not shared storage.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon FSx for Lustre
Why this is correct
FSx for Lustre provides high-performance shared storage.
Related concept
Read the scenario before looking for a memorised answer.
✗
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
What to study next
Got this wrong? Here's your next step.
Identify which SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Accelerate Workload Migration and Modernization — This question tests Accelerate Workload Migration and Modernization — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Elastic File System (EFS) — B and D are correct because EFS provides a shared file system for containers, and FSx for Lustre provides high-performance shared storage. A is wrong because EBS volumes are attached to a single EC2 instance. C is wrong because S3 is object storage, not a file system. E is wrong because RDS is a database, not shared storage.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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
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