The answer is to attach the target group to the Auto Scaling group. This works because when an Auto Scaling group is associated with a target group, any new instances launched by the group are automatically registered with the Application Load Balancer’s target group, ensuring they are ready to receive traffic and pass CodeDeploy health checks. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this scenario tests your understanding of how Auto Scaling integrates with Elastic Load Balancing to automate instance registration, a common pitfall being confusion with lifecycle hooks or instance metadata, which do not handle registration. A frequent trap is thinking a lifecycle hook is needed, but the hook only runs scripts—it does not register instances with the target group. Remember the memory tip: “Attach, don’t script” to instantly recall that attaching the target group to the Auto Scaling group is the direct, automatic solution for CodeDeploy instances not registered with the target group.
SOA-C02 Deployment, Provisioning, and Automation Practice Question
This SOA-C02 practice question tests your understanding of deployment, provisioning, and automation. 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 CodeDeploy to deploy an application to an Auto Scaling group. The deployment fails because the instances in the Auto Scaling group are not registered with the target group of an Application Load Balancer. The SysOps administrator needs to ensure that new instances launched by the Auto Scaling group are automatically registered with the target group. What should the administrator do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Attach the target group to the Auto Scaling group.
The correct answer is B because when an Auto Scaling group is attached to a target group, the Auto Scaling group automatically registers new instances with the target group. This ensures that CodeDeploy can deploy to registered instances. Option A is wrong because instance metadata does not affect registration. Option C is wrong because lifecycle hooks do not perform registration automatically. Option D is wrong because Amazon Inspector is a security assessment tool, not related to target group registration.
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 Amazon Inspector to automatically register instances with the target group.
Why it's wrong here
Wrong: Amazon Inspector is for security assessment, not registration.
✓
Attach the target group to the Auto Scaling group.
Why this is correct
Correct: Attaching the target group ensures automatic registration.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a lifecycle hook in the Auto Scaling group to register instances with the target group.
Why it's wrong here
Wrong: Lifecycle hooks can be used for custom actions but are not the standard solution.
✗
Configure the Auto Scaling group to launch instances with a user data script that registers the instance with the target group.
Why it's wrong here
Wrong: User data scripts run after launch, but Auto Scaling can handle registration automatically.
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 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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. 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.
Identify which SOA-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, Provisioning, and Automation — This question tests Deployment, Provisioning, and Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Attach the target group to the Auto Scaling group. — The correct answer is B because when an Auto Scaling group is attached to a target group, the Auto Scaling group automatically registers new instances with the target group. This ensures that CodeDeploy can deploy to registered instances. Option A is wrong because instance metadata does not affect registration. Option C is wrong because lifecycle hooks do not perform registration automatically. Option D is wrong because Amazon Inspector is a security assessment tool, not related to target group registration.
What should I do if I get this SOA-C02 question wrong?
Identify which SOA-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 SOA-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 SOA-C02 exam.
Question Discussion
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