← SOA-C02·Amazon Web Services

Question 677 of 1,546

Deployment, Provisioning, and Automation →mediumMultiple SelectObjective-mapped

How to Automatically Terminate Old Instances After CodeDeploy Blue/Green Deployment

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 company is using AWS CodeDeploy to deploy a new version of an application to a fleet of EC2 instances. The deployment is configured with a Blue/Green deployment type. During the deployment, the new instances pass all health checks, but the old instances are not being terminated automatically. The SysOps Administrator needs to ensure that the old instances are terminated after a successful deployment. Which TWO actions should the administrator take? (Choose TWO.)

A
Configure the Blue/Green deployment settings to automatically terminate the original instances after a specified wait time.
This is the setting to terminate old instances.
B
Register the old instances to a new load balancer.
Why wrong: Registering old instances to a new load balancer would keep them alive.
C
Configure the deployment group to use the original load balancer for the Blue/Green deployment.
Using original load balancer allows CodeDeploy to manage traffic shifting and termination.
D
Change the deployment configuration to AllAtOnce.
Why wrong: AllAtOnce does not affect termination of old instances.
E
Modify the deployment group to not use a load balancer.
Why wrong: Removing the load balancer would cause downtime.

Full breakdown with real-world context →

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 Blue/Green deployment settings to automatically terminate the original instances after a specified wait time.

Options A and C are correct. In a Blue/Green deployment with AWS CodeDeploy, to automatically terminate the original (blue) instances after a successful deployment, you must configure the deployment group to use the original load balancer (Option C) and set a wait time for automatic termination (Option A). Option B is incorrect because registering old instances to a new load balancer is part of the green environment setup, not related to terminating blue instances. Option D is incorrect because changing the deployment configuration to AllAtOnce affects traffic routing speed, not the termination of instances. Option E is incorrect because omitting a load balancer would prevent the Blue/Green deployment from functioning properly; a load balancer is required for traffic shifting.

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 Blue/Green deployment settings to automatically terminate the original instances after a specified wait time.
Why this is correct
This is the setting to terminate old instances.
Related concept
Read the scenario before looking for a memorised answer.
✗
Register the old instances to a new load balancer.
Why it's wrong here
Registering old instances to a new load balancer would keep them alive.
✓
Configure the deployment group to use the original load balancer for the Blue/Green deployment.
Why this is correct
Using original load balancer allows CodeDeploy to manage traffic shifting and termination.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the deployment configuration to AllAtOnce.
Why it's wrong here
AllAtOnce does not affect termination of old instances.
✗
Modify the deployment group to not use a load balancer.
Why it's wrong here
Removing the load balancer would cause downtime.

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.

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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 Blue/Green deployment settings to automatically terminate the original instances after a specified wait time. — Options A and C are correct. In a Blue/Green deployment with AWS CodeDeploy, to automatically terminate the original (blue) instances after a successful deployment, you must configure the deployment group to use the original load balancer (Option C) and set a wait time for automatic termination (Option A). Option B is incorrect because registering old instances to a new load balancer is part of the green environment setup, not related to terminating blue instances. Option D is incorrect because changing the deployment configuration to AllAtOnce affects traffic routing speed, not the termination of instances. Option E is incorrect because omitting a load balancer would prevent the Blue/Green deployment from functioning properly; a load balancer is required for traffic shifting.

What should I do if I get this SOA-C02 question wrong?

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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