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Deployment, Provisioning, and Automation →easyMultiple ChoiceObjective-mapped

SOA-C02 Blue/green deployment 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. A key principle to apply: blue/green deployment. 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 uses AWS CodeDeploy to deploy applications to Amazon EC2 instances. The SysOps administrator wants to deploy a new version of the application by first shifting 10% of traffic to the new version, monitoring for errors, and then after manual approval, shifting the remaining 90%. Which deployment configuration should be used?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "first"

    Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

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

✓

Blue/green deployment with Canary10Percent configuration

Option B is correct because a Blue/green deployment with Canary10Percent configuration shifts 10% of traffic to the new version, waits for a specified period (default 10 minutes), and then automatically shifts the remaining 90%. Note that manual approval is not natively supported by this configuration; it would need to be implemented separately (e.g., via a lifecycle hook). The question's requirement for manual approval is not directly met by the deployment configuration itself, but among the options, Canary10Percent is the only one that shifts traffic in the described pattern of 10% first then 90%.

Key principle: Blue/green deployment

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    In-place deployment

    Why it's wrong here

    In-place deployment does not shift traffic gradually; it updates instances directly, causing downtime and no traffic shifting.

  • ✓

    Blue/green deployment with Canary10Percent configuration

    Why this is correct

    Blue/green with Canary10Percent shifts 10% of traffic to the new version, waits, then automatically shifts the remaining 90%. It matches the pattern but does not natively support manual approval.

    Clue confirmation

    The clue word "first" in the question point toward this answer.

    Related concept

    Blue/green deployment

  • ✗

    Blue/green deployment with Linear10PercentEvery10Minutes configuration

    Why it's wrong here

    Blue/green with Linear10PercentEvery10Minutes automatically shifts 10% every 10 minutes, fully automated, without any pause for manual approval.

  • ✗

    Blue/green deployment with AllAtOnce configuration

    Why it's wrong here

    Blue/green with AllAtOnce shifts all traffic to the new version immediately, not matching the requirement.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap is confusing Canary10Percent (which automatically shifts the remaining traffic after a wait) with Linear10PercentEvery10Minutes (which automatically shifts 10% every 10 minutes). Both are automated; neither natively includes manual approval. Candidates may incorrectly believe that one supports manual approval natively.

Detailed technical explanation

How to think about this question

CodeDeploy's canary deployment uses a traffic shifting configuration defined in the AppSpec file or deployment group settings. The Canary10Percent configuration shifts 10% of traffic to the new environment, then after a default 10-minute interval (configurable via the 'trafficRouting' 'timeBetweenCanaryAndLinear' parameter), it pauses for manual approval if the deployment group has a manual approval hook configured. This is implemented via AWS CodeDeploy's built-in traffic routing and lifecycle hooks, specifically the 'AllowTraffic' and 'BeforeAllowTraffic' events.

KKey Concepts to Remember

  • Blue/green deployment
  • Canary deployment

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

Blue/green deployment

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. Blue/green deployment 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 blue/green deployment, then practise related SOA-C02 questions on the same topic to reinforce the concept.

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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 — Blue/green deployment.

What is the correct answer to this question?

The correct answer is: Blue/green deployment with Canary10Percent configuration — Option B is correct because a Blue/green deployment with Canary10Percent configuration shifts 10% of traffic to the new version, waits for a specified period (default 10 minutes), and then automatically shifts the remaining 90%. Note that manual approval is not natively supported by this configuration; it would need to be implemented separately (e.g., via a lifecycle hook). The question's requirement for manual approval is not directly met by the deployment configuration itself, but among the options, Canary10Percent is the only one that shifts traffic in the described pattern of 10% first then 90%.

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

Review blue/green deployment, then practise related SOA-C02 questions on the same topic to reinforce the concept.

Are there clue words in this question I should notice?

Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

What is the key concept behind this question?

Blue/green deployment

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Last reviewed: Jun 11, 2026

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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.