- A
Configure a CloudWatch alarm and enable alarm-based automatic rollback in the AutoRollbackConfiguration.
The AutoRollbackConfiguration in the deployment group allows you to specify events that trigger an automatic rollback, including alarm (CloudWatch alarm). The developer can set an alarm that monitors health check metrics and configure the deployment group to roll back if that alarm is in the ALARM state.
- B
Set the DeploymentStyle to 'BLUE_GREEN' and configure the 'LoadBalancerInfo' with the target group.
Why wrong: This configures a blue/green deployment, but does not set up automatic rollback. Rollback still requires additional configuration.
- C
Create a lifecycle hook for the Auto Scaling group to trigger a rollback script.
Why wrong: Lifecycle hooks allow you to perform custom actions before instances launch or terminate, but they do not inherently trigger a CodeDeploy rollback.
- D
Set a TriggerConfiguration in the deployment group to send notifications on deployment failure.
Why wrong: TriggerConfiguration is used for SNS notifications, not for automatic rollback. Rollback must be configured separately.
DVA-C02 AutoRollbackConfiguration Practice Question
This DVA-C02 practice question tests your understanding of deployment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: autoRollbackConfiguration. 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 CodeDeploy to deploy an application to an EC2 Auto Scaling group. The developer wants the deployment to automatically roll back if any of the new instances fail a health check within the first 10 minutes after deployment. Which configuration should the developer set in the CodeDeploy deployment group?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"first"Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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
Configure a CloudWatch alarm and enable alarm-based automatic rollback in the AutoRollbackConfiguration.
Option A is correct because CodeDeploy's AutoRollbackConfiguration allows you to specify CloudWatch alarms as triggers for automatic rollback. By creating a CloudWatch alarm that monitors the EC2 Auto Scaling group's health check failures and setting the alarm's evaluation period to 10 minutes, the deployment will automatically roll back if any new instance fails a health check within that window. This directly meets the requirement without custom scripting or manual intervention.
Key principle: AutoRollbackConfiguration
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 a CloudWatch alarm and enable alarm-based automatic rollback in the AutoRollbackConfiguration.
Why this is correct
The AutoRollbackConfiguration in the deployment group allows you to specify events that trigger an automatic rollback, including alarm (CloudWatch alarm). The developer can set an alarm that monitors health check metrics and configure the deployment group to roll back if that alarm is in the ALARM state.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
AutoRollbackConfiguration
- ✗
Set the DeploymentStyle to 'BLUE_GREEN' and configure the 'LoadBalancerInfo' with the target group.
Why it's wrong here
This configures a blue/green deployment, but does not set up automatic rollback. Rollback still requires additional configuration.
- ✗
Create a lifecycle hook for the Auto Scaling group to trigger a rollback script.
Why it's wrong here
Lifecycle hooks allow you to perform custom actions before instances launch or terminate, but they do not inherently trigger a CodeDeploy rollback.
- ✗
Set a TriggerConfiguration in the deployment group to send notifications on deployment failure.
Why it's wrong here
TriggerConfiguration is used for SNS notifications, not for automatic rollback. Rollback must be configured separately.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse event-based notifications (TriggerConfiguration) with automated rollback actions (AutoRollbackConfiguration), or mistakenly think lifecycle hooks or deployment style settings inherently provide health-check-based rollback.
Detailed technical explanation
How to think about this question
Under the hood, CodeDeploy's AutoRollbackConfiguration polls the specified CloudWatch alarm state; when the alarm enters ALARM state, CodeDeploy automatically initiates a rollback to the last known good revision. The CloudWatch alarm can be based on metrics like ELB's UnHealthyHostCount or EC2's StatusCheckFailed, with a period and evaluation periods that sum to the desired 10-minute window. A real-world scenario is when a deployment introduces a misconfiguration that causes new instances to fail the target group health check; the alarm triggers within minutes, rolling back before user impact escalates.
KKey Concepts to Remember
- AutoRollbackConfiguration
- CloudWatch alarm
- Deployment rollback
- Health check failure
TExam Day Tips
- 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
AutoRollbackConfiguration
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. AutoRollbackConfiguration 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.
Review autoRollbackConfiguration, then practise related DVA-C02 questions on the same topic to reinforce the concept.
- →
Deployment — study guide chapter
Learn the concepts, then practise the questions
- →
Deployment practice questions
Targeted practice on this topic area only
- →
All DVA-C02 questions
1,616 questions across all exam domains
- →
AWS Certified Developer Associate DVA-C02 study guide
Full concept coverage aligned to exam objectives
- →
DVA-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related DVA-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Development with AWS Services practice questions
Practise DVA-C02 questions linked to Development with AWS Services.
Security practice questions
Practise DVA-C02 questions linked to Security.
Deployment practice questions
Practise DVA-C02 questions linked to Deployment.
Troubleshooting and Optimization practice questions
Practise DVA-C02 questions linked to Troubleshooting and Optimization.
DVA-C02 fundamentals practice questions
Practise DVA-C02 questions linked to DVA-C02 fundamentals.
DVA-C02 scenario practice questions
Practise DVA-C02 questions linked to DVA-C02 scenario.
DVA-C02 troubleshooting practice questions
Practise DVA-C02 questions linked to DVA-C02 troubleshooting.
Practice this exam
Start a free DVA-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this DVA-C02 question test?
Deployment — This question tests Deployment — AutoRollbackConfiguration.
What is the correct answer to this question?
The correct answer is: Configure a CloudWatch alarm and enable alarm-based automatic rollback in the AutoRollbackConfiguration. — Option A is correct because CodeDeploy's AutoRollbackConfiguration allows you to specify CloudWatch alarms as triggers for automatic rollback. By creating a CloudWatch alarm that monitors the EC2 Auto Scaling group's health check failures and setting the alarm's evaluation period to 10 minutes, the deployment will automatically roll back if any new instance fails a health check within that window. This directly meets the requirement without custom scripting or manual intervention.
What should I do if I get this DVA-C02 question wrong?
Review autoRollbackConfiguration, then practise related DVA-C02 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
AutoRollbackConfiguration
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More DVA-C02 practice questions
- A developer is troubleshooting an AWS Lambda function that is triggered by an S3 event. The function occasionally fails…
- A developer needs to call AWS APIs from application code running on EC2. Which credential source should the AWS SDK use…
- A developer needs to allow an IAM user in a different AWS account to assume a role in the developer's account. The role…
- A developer needs to grant an IAM role in Account B read-only access to objects in an S3 bucket in Account A. The bucket…
- An API Gateway HTTP API should allow access only to users authenticated by an external OIDC provider. Which authorizer t…
- A developer needs to allow an EC2 instance to read from a DynamoDB table. Which is the best practice to grant permission…
Last reviewed: Jun 11, 2026
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.