- A
The CodeDeploy agent configuration
Why wrong: The CodeDeploy agent configuration manages the agent on each instance but does not handle load balancer registration.
- B
The deployment group configuration
Correct. The deployment group configuration specifies the target group, and CodeDeploy automatically registers instances with it.
- C
The AppSpec file hooks section
Why wrong: The AppSpec file hooks section defines custom lifecycle event hooks for scripts; instance registration is not performed by hooks.
- D
The application revision bundle
Why wrong: The application revision bundle contains the application files and AppSpec file, but the component responsible for registration is the deployment group configuration.
Question 859 of 1,750
DOP-C02 Deployment group Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: deployment group. 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.
An organization is using AWS CodeDeploy to deploy an application to an Auto Scaling group. The deployment fails because the target group is not configured correctly. Which CodeDeploy component is responsible for registering instances with the load balancer?
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
✓
The deployment group configuration
The deployment group configuration in AWS CodeDeploy specifies the target group or load balancer for the deployment. CodeDeploy automatically registers instances in the Auto Scaling group with the specified target group as part of the deployment process. The AppSpec file hooks section defines custom lifecycle event hooks for scripts, but instance registration is handled by the CodeDeploy service based on the deployment group settings, not by hooks.
Key principle: Deployment group
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The CodeDeploy agent configuration
Why it's wrong here
The CodeDeploy agent configuration manages the agent on each instance but does not handle load balancer registration.
- ✓
The deployment group configuration
Why this is correct
Correct. The deployment group configuration specifies the target group, and CodeDeploy automatically registers instances with it.
Related concept
Deployment group
- ✗
The AppSpec file hooks section
Why it's wrong here
The AppSpec file hooks section defines custom lifecycle event hooks for scripts; instance registration is not performed by hooks.
- ✗
The application revision bundle
Why it's wrong here
The application revision bundle contains the application files and AppSpec file, but the component responsible for registration is the deployment group configuration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often incorrectly attribute instance registration to the AppSpec hooks section because hooks can run custom scripts. However, registration with a load balancer is a built-in function of CodeDeploy that relies on the deployment group configuration, not on user-defined hooks.
Detailed technical explanation
How to think about this question
Under the hood, when a deployment group is configured with an Elastic Load Balancing (ELB) target group, CodeDeploy automatically registers instances with the target group during the `Install` and `AfterInstall` lifecycle events, using the target group ARN specified in the deployment group. The AppSpec file's hooks section can run custom scripts (e.g., using AWS CLI) to perform additional load balancer operations, but the default registration is handled by the CodeDeploy service based on the deployment group configuration. A real-world scenario where this matters is when using blue/green deployments, where the deployment group configuration controls the creation of new instances and their registration with the target group, while the AppSpec hooks can be used to run health checks before traffic is routed.
KKey Concepts to Remember
- Deployment group
- AppSpec file
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
Deployment group
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. Deployment group 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 deployment group, then practise related DOP-C02 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
SDLC Automation — This question tests SDLC Automation — Deployment group.
What is the correct answer to this question?
The correct answer is: The deployment group configuration — The deployment group configuration in AWS CodeDeploy specifies the target group or load balancer for the deployment. CodeDeploy automatically registers instances in the Auto Scaling group with the specified target group as part of the deployment process. The AppSpec file hooks section defines custom lifecycle event hooks for scripts, but instance registration is handled by the CodeDeploy service based on the deployment group settings, not by hooks.
What should I do if I get this DOP-C02 question wrong?
Review deployment group, then practise related DOP-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Deployment group
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Last reviewed: Jul 4, 2026
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