DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 company is using AWS CloudFormation to deploy a web application. The template creates an Auto Scaling group, an Application Load Balancer, and a security group. The developer wants to ensure that the stack update fails if the new Auto Scaling group instances fail health checks. Which THREE steps should the developer take? (Choose THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the Auto Scaling group to send a signal to CloudFormation using cfn-signal.
Option A is correct because the Auto Scaling group must associate with the ALB target group for health checks. Option B is correct because creation policies allow CloudFormation to wait for a signal of success. Option D is correct because a CloudFormation signal (cfn-signal) is used to report success/failure. Option C is wrong because UpdatePolicy is used for rolling updates, not for signaling health checks. Option E is wrong because AWS::CloudFormation::Init is for software configuration, not health check signaling.
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 the Auto Scaling group to send a signal to CloudFormation using cfn-signal.
Why this is correct
cfn-signal is used to notify CloudFormation of success or failure.
Related concept
Read the scenario before looking for a memorised answer.
✓
Associate the Auto Scaling group with an ALB target group.
Why this is correct
The target group defines health checks for the instances.
Related concept
Read the scenario before looking for a memorised answer.
✓
Add a CreationPolicy to the Auto Scaling group.
Why this is correct
CreationPolicy waits for a specified number of success signals.
Related concept
Read the scenario before looking for a memorised answer.
✗
Add an UpdatePolicy to the Auto Scaling group with a rolling update configuration.
Why it's wrong here
UpdatePolicy controls how updates are rolled out, not health check failure signaling.
✗
Use the AWS::CloudFormation::Init metadata to run a health check script.
Why it's wrong here
This is used for configuration management, not for signaling CloudFormation.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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 the Auto Scaling group to send a signal to CloudFormation using cfn-signal. — Option A is correct because the Auto Scaling group must associate with the ALB target group for health checks. Option B is correct because creation policies allow CloudFormation to wait for a signal of success. Option D is correct because a CloudFormation signal (cfn-signal) is used to report success/failure. Option C is wrong because UpdatePolicy is used for rolling updates, not for signaling health checks. Option E is wrong because AWS::CloudFormation::Init is for software configuration, not health check signaling.
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.
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 →
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.
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.