- A
Use a canary deployment instead of in-place.
Why wrong: Canary deployments are used in blue/green deployments, not in-place.
- B
Define a BeforeInstall hook to deregister instances.
Why wrong: While possible, the recommended approach is to use the built-in load balancer integration.
- C
Use a linear deployment configuration.
Why wrong: Linear deployment configuration sets the percentage of instances to deploy at a time, but traffic shifting is managed by the load balancer settings.
- D
Configure the load balancer deregistration delay and re-registration in the deployment group.
CodeDeploy can automatically deregister and re-register instances with the load balancer.
Question 946 of 1,546
SOA-C02 Deployment, Provisioning, and Automation Practice Question
This SOA-C02 practice question tests your understanding of deployment, provisioning, and automation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 SysOps administrator is deploying a new version of an application using AWS CodeDeploy with an in-place deployment configuration. The deployment group consists of EC2 instances behind an Application Load Balancer. The administrator wants to ensure that traffic is gradually shifted to the new version. Which CodeDeploy feature should be used?
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 the load balancer deregistration delay and re-registration in the deployment group.
Option D is correct because configuring the load balancer deregistration delay and re-registration in the deployment group allows CodeDeploy to control how instances are gradually removed from and added back to the ALB target group. This enables a controlled traffic shift during an in-place deployment by waiting for in-flight requests to complete (via deregistration delay) before rerouting traffic to the new version, and then re-registering instances after the new application is healthy.
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 a canary deployment instead of in-place.
Why it's wrong here
Canary deployments are used in blue/green deployments, not in-place.
- ✗
Define a BeforeInstall hook to deregister instances.
Why it's wrong here
While possible, the recommended approach is to use the built-in load balancer integration.
- ✗
Use a linear deployment configuration.
Why it's wrong here
Linear deployment configuration sets the percentage of instances to deploy at a time, but traffic shifting is managed by the load balancer settings.
- ✓
Configure the load balancer deregistration delay and re-registration in the deployment group.
Why this is correct
CodeDeploy can automatically deregister and re-register instances with the load balancer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the deployment configuration (e.g., linear, canary) with traffic shifting mechanics, not realizing that in-place deployments require explicit load balancer settings to gradually shift traffic, whereas blue/green deployments handle traffic shifting natively via the load balancer.
Detailed technical explanation
How to think about this question
Under the hood, CodeDeploy uses the deregistration delay setting on the ALB target group to wait for active connections to finish before marking an instance as unhealthy and removing it from service. The re-registration process then waits for the new application to pass health checks before adding the instance back, ensuring zero-downtime traffic shifting. In a real-world scenario, if the deregistration delay is set too low (e.g., 30 seconds), long-running requests may be terminated prematurely, causing errors for users.
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.
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
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.
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
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: Configure the load balancer deregistration delay and re-registration in the deployment group. — Option D is correct because configuring the load balancer deregistration delay and re-registration in the deployment group allows CodeDeploy to control how instances are gradually removed from and added back to the ALB target group. This enables a controlled traffic shift during an in-place deployment by waiting for in-flight requests to complete (via deregistration delay) before rerouting traffic to the new version, and then re-registering instances after the new application is healthy.
What should I do if I get this SOA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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