DBS-C01 Management and Operations Practice Question
Which TWO methods can be used to reduce the read latency for an Amazon Aurora MySQL database? (Choose 2.)
⚠ Common exam trap
Watch out — candidates often confuse write scaling (Option C) with read scaling, or assume that encryption (Option A) or external caching (Option D) are native Aurora methods, when the exam expects knowledge of Aurora-specific read scaling features like Aurora Replicas and Auto Scaling.
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
✓
Use Aurora Auto Scaling to add replica capacity based on load
Aurora Auto Scaling automatically adjusts the number of Aurora Replicas in response to changes in read workload, thereby reducing read latency by distributing read traffic across additional replicas. Option E is correct because adding Aurora Replicas offloads read queries from the primary instance, allowing parallel processing of read requests and reducing contention, which directly lowers read latency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable encryption at rest
Why it's wrong here
Encryption has minimal impact on latency and is for security.
- ✓
Use Aurora Auto Scaling to add replica capacity based on load
Why this is correct
Auto Scaling ensures sufficient replicas to handle read traffic.
- ✗
Increase the write capacity of the DB instance
Why it's wrong here
Write capacity does not affect read latency.
- ✗
Enable Amazon ElastiCache in front of the database
Why it's wrong here
This caches data, reducing database reads but not database read latency directly.
- ✓
Add Aurora Replicas to offload read traffic
Why this is correct
Aurora Replicas handle read queries, reducing load on the primary.
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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.