Question 1,332 of 1,663
DBS-C01 Workload-Specific Database Design Practice Question
A gaming company wants to store player profiles and game state data with low-latency access for millions of concurrent users. The data is accessed via a REST API and requires high scalability with minimal operational overhead. Which database service is MOST suitable?
⚠ Common exam trap
Test-takers frequently confuse ElastiCache for Redis as a primary database due to its low latency, but it is an in-memory cache that does not provide the durability and persistence guarantees required for authoritative game state data, whereas DynamoDB is designed as a fully managed, durable, and scalable NoSQL database for exactly this use case.
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 DynamoDB
Amazon DynamoDB is the most suitable choice because it is a fully managed NoSQL key-value and document database that delivers single-digit millisecond latency at any scale, making it ideal for storing player profiles and game state data for millions of concurrent users. It supports high throughput with auto-scaling, integrates seamlessly with REST APIs via AWS SDKs, and requires minimal operational overhead due to its serverless nature.
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 RDS for MySQL with read replicas
Why it's wrong here
RDS requires manual scaling and may not handle millions of concurrent users as easily.
- ✓
Amazon DynamoDB
Why this is correct
DynamoDB is serverless, scales automatically, and provides low-latency access.
- ✗
Amazon Neptune
Why it's wrong here
Neptune is a graph database, not suitable for simple key-value access.
- ✗
Amazon ElastiCache for Redis
Why it's wrong here
ElastiCache is a cache, not durable storage; data loss possible.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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Last reviewed: Jul 4, 2026
This DBS-C01 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 DBS-C01 exam.
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