DBS-C01 Workload-Specific Database Design Practice Question
A company wants to run a MongoDB-compatible database on AWS with automated patching and backups. Which service should they choose?
⚠ Common exam trap
Many candidates confuse Amazon DocumentDB's MongoDB compatibility with full feature parity, but DocumentDB does not support all MongoDB features (e.g., some aggregation pipeline stages or change streams), so the exam expects you to recognize it as the only managed MongoDB-compatible option with automated patching and backups.
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 DocumentDB (with MongoDB compatibility)
Amazon DocumentDB with MongoDB compatibility is the correct choice because it is a fully managed, MongoDB-compatible database service that provides automated patching and backups. It supports the MongoDB wire protocol and drivers, allowing existing MongoDB applications to migrate with minimal changes while offloading administrative tasks like patching, backup, and replication to AWS.
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 DocumentDB (with MongoDB compatibility)
Why this is correct
Fully managed MongoDB-compatible database.
- ✗
Self-managed MongoDB on Amazon EC2
Why it's wrong here
Not fully managed; requires manual patching and backups.
- ✗
Amazon DynamoDB
Why it's wrong here
NoSQL but not MongoDB-compatible.
- ✗
Amazon RDS for MySQL
Why it's wrong here
Relational, not MongoDB-compatible.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.