The answer is that a developer must install the CodeDeploy agent on each EC2 instance in the Auto Scaling group and attach a service role with permissions to access those instances. These two actions are required because the CodeDeploy agent is the software that runs on each instance to pull the application revision and execute the deployment lifecycle hooks, while the service role grants CodeDeploy the necessary AWS API permissions to interact with the Auto Scaling group and its instances. On the AWS Certified Developer Associate DVA-C02 exam, this question tests your understanding of the foundational prerequisites for CodeDeploy to Auto Scaling group deployments, often appearing as a trap where candidates mistakenly think a load balancer or a blue/green strategy is mandatory. A common memory tip is to remember the two “I”s: the **I**nstance agent and the **I**AM role—without both, the deployment simply cannot communicate with or update the instances.
DVA-C02 Deployment Practice Question
This DVA-C02 practice question tests your understanding of deployment. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which TWO actions should a developer take to ensure that an AWS CodeDeploy deployment is successful when deploying to an Auto Scaling group? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create an IAM service role that allows CodeDeploy to access the instances.
Option B and D are correct because the CodeDeploy agent must be installed on each instance, and the service role must have permissions to access the instances. Option A is wrong because CodeDeploy supports in-place deployments. Option C is wrong because a load balancer is optional. Option E is wrong because CodeDeploy does not require an Application Discovery Service.
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.
✓
Create an IAM service role that allows CodeDeploy to access the instances.
Why this is correct
Role is required for CodeDeploy to perform actions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Attach an Application Load Balancer to the Auto Scaling group.
Why it's wrong here
Optional for traffic routing.
✗
Enable the Application Discovery Service for the instances.
Why it's wrong here
Not related to CodeDeploy.
✗
Configure the deployment to use a blue/green deployment type.
Why it's wrong here
Not required; in-place works.
✓
Install the CodeDeploy agent on each EC2 instance in the Auto Scaling group.
Why this is correct
Agent must be present for deployments.
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
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.
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: Create an IAM service role that allows CodeDeploy to access the instances. — Option B and D are correct because the CodeDeploy agent must be installed on each instance, and the service role must have permissions to access the instances. Option A is wrong because CodeDeploy supports in-place deployments. Option C is wrong because a load balancer is optional. Option E is wrong because CodeDeploy does not require an Application Discovery Service.
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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