SAP-C02 Design for New Solutions Practice Question
A startup needs a serverless compute service to run code in response to S3 events. The code should execute within milliseconds and require no server management. Which AWS service should be used?
⚠ Common exam trap
Many candidates confuse AWS Fargate as a serverless compute option for event-driven workloads, but Fargate is designed for containerized applications with longer runtimes and higher latency, not for sub-millisecond event responses.
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
✓
AWS Lambda
AWS Lambda is the correct choice because it is a serverless compute service that executes code in response to events, such as S3 object creation, with sub-millisecond startup times. It automatically scales and requires no server management, making it ideal for this use case.
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 ECS
Why it's wrong here
ECS requires cluster management.
- ✓
AWS Lambda
Why this is correct
Lambda is event-driven and serverless.
- ✗
Amazon EC2
Why it's wrong here
EC2 requires provisioning and management.
- ✗
AWS Fargate
Why it's wrong here
Fargate runs containers, not functions.
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.