- A
Blue/green strategy
Why wrong: Not requested; canary is specified.
- B
Canary deployment strategy
Required for the progressive rollout pattern.
- C
SLO-based verification
Automates promotion based on latency metrics.
- D
Automated rollback
Why wrong: While possible, it is not one of the three features described (canary, verification, approval).
- E
Manual approval gate
Adds manual approval before proceeding to prod.
Question 50 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. 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 Cloud Deploy to manage deployments to GKE across dev, staging, and prod. They want to implement a canary deployment strategy that automatically progresses based on latency metrics and includes a manual approval step before the full rollout. Which three Cloud Deploy features should they use together?
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
✓
Canary deployment strategy
Option B is correct because Cloud Deploy's canary deployment strategy allows you to progressively shift traffic to a new version, which aligns with the requirement for a gradual rollout. Option C is correct because SLO-based verification uses latency metrics (e.g., from Cloud Monitoring) to automatically determine whether the canary should progress, meeting the need for automated progression based on latency. Option E is correct because a manual approval gate can be inserted before the final full rollout, satisfying the requirement for a manual approval step.
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.
- ✗
Blue/green strategy
Why it's wrong here
Not requested; canary is specified.
- ✓
Canary deployment strategy
Why this is correct
Required for the progressive rollout pattern.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
SLO-based verification
Why this is correct
Automates promotion based on latency metrics.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Automated rollback
Why it's wrong here
While possible, it is not one of the three features described (canary, verification, approval).
- ✓
Manual approval gate
Why this is correct
Adds manual approval before proceeding to prod.
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 'automated rollback' (a reactive failure-handling feature) with 'automated progression' (a proactive verification step), and they may incorrectly select blue/green because they think it supports canary-like traffic shifting, whereas Cloud Deploy's blue/green does not support phased traffic increases.
Detailed technical explanation
How to think about this question
Cloud Deploy uses a rollout pipeline where each phase (e.g., canary, full rollout) can have associated SLO-based verification jobs that query Cloud Monitoring metrics like p99 latency. The manual approval gate is implemented as a Cloud Deploy 'approval' resource that pauses the pipeline until a user explicitly approves via the console or gcloud command. Under the hood, the canary strategy leverages GKE's traffic splitting via Service Mesh or Ingress, and the SLO verification uses a custom Cloud Build step or a Cloud Deploy verification template that evaluates metric thresholds.
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: Canary deployment strategy — Option B is correct because Cloud Deploy's canary deployment strategy allows you to progressively shift traffic to a new version, which aligns with the requirement for a gradual rollout. Option C is correct because SLO-based verification uses latency metrics (e.g., from Cloud Monitoring) to automatically determine whether the canary should progress, meeting the need for automated progression based on latency. Option E is correct because a manual approval gate can be inserted before the final full rollout, satisfying the requirement for a manual approval step.
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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