The answer is to configure Auto Scaling triggers based on CloudWatch alarms. This is correct because Elastic Beanstalk integrates with Amazon CloudWatch to monitor key metrics like CPU utilization or request latency; when a CloudWatch alarm threshold is breached, it triggers a scaling policy that automatically adds or removes EC2 instances, enabling dynamic, demand-driven scaling without manual intervention. On the AWS Certified Developer Associate DVA-C02 exam, this concept tests your understanding of how Elastic Beanstalk leverages CloudWatch for automatic scaling, often appearing as a distractor against fixed-instance counts, scheduled scaling, or manual actions—traps that fail to meet the "scale out quickly without manual intervention" requirement. A strong memory tip is to associate "automatic scaling" with "CloudWatch alarms" as the dynamic duo: alarms detect load, triggers scale out.
DVA-C02 Deployment Practice Question
This DVA-C02 practice question tests your understanding of deployment. 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 deploying a web application using AWS Elastic Beanstalk. The application experiences high traffic during peak hours. The developer wants to ensure that the environment can scale out quickly without manual intervention. Which Elastic Beanstalk configuration should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure Auto Scaling triggers based on CloudWatch alarms.
Option B is correct. Auto Scaling triggers based on CloudWatch alarms allow automatic scaling. Option A is wrong because fixed number of instances does not scale. Option C is wrong because time-based scaling is not dynamic. Option D is wrong because manual scaling is not automatic.
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.
✗
Use a scheduled scaling action to increase capacity during peak hours.
Why it's wrong here
Scheduled scaling is not dynamic; requires prior knowledge of traffic patterns.
✗
Manually add EC2 instances during peak hours.
Why it's wrong here
Manual intervention is not automatic.
✗
Set the environment to use a fixed number of EC2 instances.
Why it's wrong here
Fixed number does not scale automatically.
✓
Configure Auto Scaling triggers based on CloudWatch alarms.
Why this is correct
Auto Scaling triggers allow the environment to scale out based on metrics like CPU.
Related concept
Read the scenario before looking for a memorised answer.
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.
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure Auto Scaling triggers based on CloudWatch alarms. — Option B is correct. Auto Scaling triggers based on CloudWatch alarms allow automatic scaling. Option A is wrong because fixed number of instances does not scale. Option C is wrong because time-based scaling is not dynamic. Option D is wrong because manual scaling is not automatic.
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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