SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a stateful application that uses local disks for caching to AWS. The application requires high-performance, low-latency storage that can be attached to a single EC2 instance. Which THREE AWS services or features should the company consider for the cache storage?
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 EBS io2 Block Express
The correct answers are A (Amazon EBS io2 Block Express), C (Instance store), and D (Local NVMe instance store). EBS io2 Block Express provides high-performance, persistent block storage that can be attached to a single EC2 instance. Instance store offers high-performance, low-latency local storage but is ephemeral. Local NVMe instance store is a type of instance store using NVMe SSDs for even higher performance. Option B (Amazon EFS) is a shared file system, not suitable for a single instance's cache. Option E (Amazon S3) is object storage, not designed for low-latency block-level access.
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 EBS io2 Block Express
Why this is correct
io2 Block Express provides high-performance persistent block storage for a single instance.
- ✗
Amazon EFS
Why it's wrong here
EFS is a shared file system, not block storage for a single instance.
- ✓
Instance store
Why this is correct
Instance store provides high-performance local storage, but data is ephemeral.
- ✓
Local NVMe instance store
Why this is correct
Local NVMe instance store offers high-performance, direct-attached storage.
- ✗
Amazon S3
Why it's wrong here
S3 is object storage with higher latency, not suitable for low-latency cache.
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 |
Go deeper
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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.