This PCDOE practice question tests your understanding of building and implementing ci/cd pipelines. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 team uses Spinnaker on GKE for deployment. They notice that deployments are taking too long because of manual judgment gates. They want to automatically approve deployments if the canary analysis passes predefined thresholds. What Spinnaker feature should they use?
Automated rollback
Why wrong: Rollback is for reverting failures, not approving deployments.
Policy engine with OPA
Why wrong: OPA is for policy enforcement, not canary analysis.
Pipeline expressions
Why wrong: Pipeline expressions are for conditionals, not automated analysis.
Automated canary analysis
ACA with Kayenta automates canary evaluation based on metrics thresholds.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Automated canary analysis
Option D is correct because Spinnaker's Automated Canary Analysis (ACA) feature allows teams to define canary analysis thresholds and automatically promote or roll back deployments based on the analysis results, eliminating the need for manual judgment gates. This directly addresses the requirement to automatically approve deployments when predefined thresholds are met, without human intervention.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Automated rollback
Why it's wrong here
Rollback is for reverting failures, not approving deployments.
Policy engine with OPA
Why it's wrong here
OPA is for policy enforcement, not canary analysis.
Pipeline expressions
Why it's wrong here
Pipeline expressions are for conditionals, not automated analysis.
Automated canary analysis
Why this is correct
ACA with Kayenta automates canary evaluation based on metrics thresholds.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates may confuse the Policy Engine (OPA) with automated approval logic, but OPA is for policy enforcement (e.g., 'only deploy from master branch'), not for statistical canary analysis and automated promotion.
Detailed technical explanation
Spinnaker's Automated Canary Analysis uses a Kayenta-based analysis engine that compares metrics from the canary and baseline clusters using statistical methods like the Mann-Whitney U test or mean-variance analysis. The user defines thresholds for metrics such as error rate, latency, or custom metrics, and if the canary passes all configured thresholds, Spinnaker automatically proceeds to the next stage (e.g., promotion). In real-world scenarios, this is critical for high-velocity teams deploying to production multiple times a day, where manual gates would introduce unacceptable delays.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Building and implementing CI/CD pipelines — This question tests Building and implementing CI/CD pipelines — Read the scenario before looking for a memorised answer..
The correct answer is: Automated canary analysis — Option D is correct because Spinnaker's Automated Canary Analysis (ACA) feature allows teams to define canary analysis thresholds and automatically promote or roll back deployments based on the analysis results, eliminating the need for manual judgment gates. This directly addresses the requirement to automatically approve deployments when predefined thresholds are met, without human intervention.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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