DBS-C01 Management and Operations Practice Question
Which THREE factors should be considered when selecting the backup strategy for an Amazon RDS for PostgreSQL DB instance? (Choose 3.)
⚠ Common exam trap
AWS often tests the misconception that Multi-AZ deployment is part of the backup strategy, but in reality it is a high-availability feature that does not affect backup retention, RPO, or backup window performance.
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
✓
The backup retention period
The backup retention period directly determines how far back you can perform a point-in-time recovery (PITR) for an RDS for PostgreSQL instance. Amazon RDS stores automated backups and transaction logs for the specified retention period (1 to 35 days), and this period must be aligned with your compliance and operational requirements. Choosing an appropriate retention period is a fundamental factor in defining the backup strategy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The backup retention period
Why this is correct
Retention period determines how long backups are stored, affecting cost and compliance.
- ✓
The Recovery Point Objective (RPO) requirement
Why this is correct
RPO determines how often backups are taken to minimize data loss.
- ✓
The impact of the backup window on database performance
Why this is correct
Backups can cause I/O impact; choosing a low-activity window is important.
- ✗
The need for Multi-AZ deployment
Why it's wrong here
Multi-AZ is for high availability, not backup strategy.
- ✗
The encryption at rest requirement
Why it's wrong here
Encryption is a security consideration, not backup strategy.
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JA
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.