The answer is to configure cross-Region read replicas, add more reader instances, and enable Aurora Auto Scaling to improve read performance. These three actions directly address increased read latency by distributing the read load across additional readers and automatically scaling capacity based on demand, while cross-Region replicas offload traffic to geographically closer endpoints. On the AWS Certified Database Specialty DBS-C01 exam, this scenario tests your understanding of Aurora’s read scaling architecture versus common distractors like resizing the writer instance or adding application-level caching. A frequent trap is assuming that scaling the writer helps reads—it does not, since the writer handles writes only. Another trap is confusing ElastiCache or DynamoDB Accelerator with native Aurora read scaling; those are separate services for caching or NoSQL acceleration. Memory tip: think “readers, auto, and cross-Region” as the three pillars for scaling Aurora MySQL reads—never touch the writer for read performance.
DBS-C01 Management and Operations Practice Question
This DBS-C01 practice question tests your understanding of management and operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An e-commerce application uses Amazon Aurora MySQL with a Multi-AZ DB cluster. During a recent load test, the application experienced increased read latency. The database cluster consists of one writer and two reader instances. Which THREE actions should be taken to improve read performance?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure cross-Region read replicas.
Adding more reader instances distributes the read load. Using Aurora Auto Scaling automatically adjusts reader capacity. Enabling read replicas in different regions can offload read traffic locally. Option B (increasing writer instance size) does not directly help reads; Option D (using ElastiCache) is for application-level caching, not database read scaling; Option E (using DynamoDB Accelerator) is irrelevant.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Configure cross-Region read replicas.
Why this is correct
Cross-Region replicas can serve read traffic from different regions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase the instance class of the writer instance.
Why it's wrong here
Writer instance size does not directly improve read performance.
✓
Add more reader instances to the cluster.
Why this is correct
More readers distribute read queries.
Related concept
Read the scenario before looking for a memorised answer.
✓
Enable Aurora Auto Scaling for the reader instances.
Why this is correct
Auto Scaling adjusts reader count based on load.
Related concept
Read the scenario before looking for a memorised answer.
✗
Implement Amazon ElastiCache for caching frequent queries.
Why it's wrong here
ElastiCache is application-level caching, not a database scaling solution.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Management and Operations — This question tests Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure cross-Region read replicas. — Adding more reader instances distributes the read load. Using Aurora Auto Scaling automatically adjusts reader capacity. Enabling read replicas in different regions can offload read traffic locally. Option B (increasing writer instance size) does not directly help reads; Option D (using ElastiCache) is for application-level caching, not database read scaling; Option E (using DynamoDB Accelerator) is irrelevant.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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