DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A developer is using AWS Elastic Beanstalk to deploy a web application. The application experiences high latency during peak hours. The developer wants to scale the application automatically based on CPU utilization. Which configuration should the developer use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure an Auto Scaling simple scaling policy based on Average CPU Utilization > 70% for scale-out and < 30% for scale-in.
Elastic Beanstalk uses Auto Scaling groups. Option B correctly configures a scale-out policy based on CPU > 70% and a scale-in policy for CPU < 30%. Option A uses incorrect metric (Memory). Option C uses incorrect service (CloudFront). Option D uses incorrect metric (NetworkIn).
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 an Auto Scaling step scaling policy based on MemoryReservation metric.
Why it's wrong here
MemoryReservation is not a standard metric for CPU-based scaling.
✗
Use AWS CloudFront to cache responses and reduce load on the application.
Why it's wrong here
CloudFront caching does not automatically scale compute resources.
✓
Configure an Auto Scaling simple scaling policy based on Average CPU Utilization > 70% for scale-out and < 30% for scale-in.
Why this is correct
Correct approach using CPU utilization thresholds.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure an Auto Scaling target tracking policy based on NetworkIn metric.
Why it's wrong here
NetworkIn is not CPU utilization; does not address latency caused by CPU.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which DVA-C02 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.
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure an Auto Scaling simple scaling policy based on Average CPU Utilization > 70% for scale-out and < 30% for scale-in. — Elastic Beanstalk uses Auto Scaling groups. Option B correctly configures a scale-out policy based on CPU > 70% and a scale-in policy for CPU < 30%. Option A uses incorrect metric (Memory). Option C uses incorrect service (CloudFront). Option D uses incorrect metric (NetworkIn).
What should I do if I get this DVA-C02 question wrong?
Identify which DVA-C02 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 DVA-C02 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 DVA-C02 exam.
Question Discussion
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