SOA-C02 Blue/green deployment Practice Question
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?
⚠ Common exam trap
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.
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
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%.
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.
- ✗
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.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.