DBS-C01 Management and Operations Practice Question
A company is deploying an Amazon Aurora MySQL database. The company requires that the database withstand the loss of two copies of data without impacting write availability. Which configuration should the company use?
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
✓
Aurora with 6 copies of data across 3 Availability Zones
Aurora MySQL stores 6 copies of data across 3 Availability Zones. The database can withstand the loss of up to two copies without affecting write availability, provided the copies are distributed across AZs. Option D (6 copies across 3 AZs) is correct. Option A (3 copies in 3 AZs) is incorrect because Aurora uses 6 copies, not 3. Option B (2 copies in 2 AZs) provides insufficient redundancy. Option C (3 copies in 2 AZs) is not the architecture; Aurora uses 6 copies across 3 AZs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Aurora with 3 copies of data in 3 Availability Zones
Why it's wrong here
Aurora stores 6 copies, not 3.
- ✗
Aurora with 2 copies of data in 2 Availability Zones
Why it's wrong here
This does not tolerate loss of two copies.
- ✗
Aurora with 3 copies of data in 2 Availability Zones
Why it's wrong here
This configuration is not supported by Aurora.
- ✓
Aurora with 6 copies of data across 3 Availability Zones
Why this is correct
Aurora automatically stores 6 copies across 3 AZs, allowing it to tolerate loss of two copies without affecting write availability.
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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.