DBS-C01 Management and Operations Practice Question
A company is designing a disaster recovery strategy for Amazon DynamoDB. The strategy must have an RPO of 5 minutes and RTO of 1 hour. Which TWO options meet these requirements? (Choose 2.)
⚠ Common exam trap
A common mix-up: candidates confuse on-demand backups or scheduled backups with PITR, not realizing that only PITR provides continuous, granular recovery points, and that Global tables are the only option that provides automatic cross-region failover without manual restore operations.
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
✓
Point-in-time recovery (PITR)
Point-in-time recovery (PITR) enables continuous backups of DynamoDB tables with 1-second granularity over a 35-day window, allowing restoration to any point within that window. This supports an RPO of 5 minutes because you can restore to a specific timestamp within seconds of the failure, and the RTO of 1 hour is achievable as table restoration typically completes within that timeframe for most table sizes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
On-demand backups
Why it's wrong here
Manual backups do not ensure 5-minute RPO.
- ✓
Point-in-time recovery (PITR)
Why this is correct
PITR allows restore to any point within seconds, meeting RPO.
- ✗
Cross-Region Replication (CRR) to S3
Why it's wrong here
CRR is for S3, not DynamoDB.
- ✓
Global tables
Why this is correct
Global tables replicate data across regions with low latency.
- ✗
Scheduled backups using AWS Backup
Why it's wrong here
Scheduled backups have minimum 1-hour intervals.
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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.