- A
Use a Cloud Build step to check error rates
Why wrong: Cloud Build can check metrics but cannot promote Cloud Deploy releases automatically.
- B
Use a manual approval gate
Why wrong: Manual approval requires human intervention, not automatic metric-based promotion.
- C
Set the deployment strategy to blue/green
Why wrong: Blue/green strategy does not support metric-based promotion; it requires a cutover step.
- D
Configure a canary deployment with a metric threshold in clouddeploy.yaml
Cloud Deploy can be configured to automatically promote based on metrics.
Question 146 of 1,000
PCDE Practice Question: Building and Implementing CI/CD Pipelines for a Service
This PCDE practice question tests your understanding of building and implementing ci/cd pipelines for a service. 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 team uses Cloud Deploy with a canary deployment strategy to GKE. They want to automatically promote the canary to full production if the error rate is below 1% for 10 minutes. What should they configure?
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 a canary deployment with a metric threshold in clouddeploy.yaml
Option D is correct because Cloud Deploy supports canary deployments with automated promotion based on metric thresholds defined in the `clouddeploy.yaml` configuration. By specifying a metric threshold (e.g., error rate < 1% for 10 minutes) under the `canaryDeployment` strategy, Cloud Deploy can automatically promote the canary to full production without manual intervention or external scripts.
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 Cloud Build step to check error rates
Why it's wrong here
Cloud Build can check metrics but cannot promote Cloud Deploy releases automatically.
- ✗
Use a manual approval gate
Why it's wrong here
Manual approval requires human intervention, not automatic metric-based promotion.
- ✗
Set the deployment strategy to blue/green
Why it's wrong here
Blue/green strategy does not support metric-based promotion; it requires a cutover step.
- ✓
Configure a canary deployment with a metric threshold in clouddeploy.yaml
Why this is correct
Cloud Deploy can be configured to automatically promote based on metrics.
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 confuse Cloud Build's ability to run scripts with the need for a continuous metric evaluation, leading them to choose Option A, when in fact Cloud Deploy's native metric threshold configuration is the correct and simpler approach.
Detailed technical explanation
How to think about this question
Cloud Deploy's canary deployment strategy uses `canaryDeployment` in `clouddeploy.yaml` to define phases (e.g., 25%, 50%) and a `metricThreshold` object referencing Cloud Monitoring metrics like `error_rate`. The deployment pipeline polls the metric over the specified duration (e.g., 10 minutes) and only promotes if the threshold is met; otherwise, it can roll back or halt. This leverages Cloud Monitoring's alerting and Cloud Deploy's rollout automation under the hood.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Building and Implementing CI/CD Pipelines for a Service — study guide chapter
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FAQ
Questions learners often ask
What does this PCDE question test?
Building and Implementing CI/CD Pipelines for a Service — This question tests Building and Implementing CI/CD Pipelines for a Service — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure a canary deployment with a metric threshold in clouddeploy.yaml — Option D is correct because Cloud Deploy supports canary deployments with automated promotion based on metric thresholds defined in the `clouddeploy.yaml` configuration. By specifying a metric threshold (e.g., error rate < 1% for 10 minutes) under the `canaryDeployment` strategy, Cloud Deploy can automatically promote the canary to full production without manual intervention or external scripts.
What should I do if I get this PCDE 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.
About these practice questions
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Last reviewed: Jul 4, 2026
This PCDE practice question is part of Courseiva's free Google Cloud 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 PCDE exam.
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