- A
Use Skaffold to run Helm and Kustomize in sequence
Skaffold can run a Helm deploy and then a Kustomize deploy, or vice versa, in a CI/CD pipeline.
- B
Use Config Sync to apply Kustomize overlays directly
Why wrong: Config Sync can sync Kustomize overlays but does not natively combine with Helm charts.
- C
Use 'kubectl apply -k' to apply Helm charts without overlays
Why wrong: kubectl apply -k applies Kustomize overlays, not Helm charts directly.
- D
Use Kustomize's 'helmCharts' plugin to render Helm charts and apply overlays
Kustomize has a helmCharts plugin that renders Helm charts and then applies overlays.
- E
Use Cloud Build's built-in Helm support only
Why wrong: Cloud Build has Helm support but does not directly combine with Kustomize without additional steps.
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 Helm charts to deploy applications to GKE. They want to use Kustomize to manage environment-specific overlays for different clusters. Which two tools or approaches can they combine to achieve this?
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
Use Skaffold to run Helm and Kustomize in sequence
Option A is correct because Skaffold can orchestrate both Helm and Kustomize in a single pipeline, allowing you to first render Helm charts and then apply Kustomize overlays for environment-specific customizations. Option D is correct because Kustomize's 'helmCharts' plugin can directly render Helm charts and apply overlays in one step, providing an alternative approach. Both methods enable combining Helm's templating with Kustomize's overlays.
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 Skaffold to run Helm and Kustomize in sequence
Why this is correct
Skaffold can run a Helm deploy and then a Kustomize deploy, or vice versa, in a CI/CD pipeline.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use Config Sync to apply Kustomize overlays directly
Why it's wrong here
Config Sync can sync Kustomize overlays but does not natively combine with Helm charts.
- ✗
Use 'kubectl apply -k' to apply Helm charts without overlays
Why it's wrong here
kubectl apply -k applies Kustomize overlays, not Helm charts directly.
- ✓
Use Kustomize's 'helmCharts' plugin to render Helm charts and apply overlays
Why this is correct
Kustomize has a helmCharts plugin that renders Helm charts and then applies overlays.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use Cloud Build's built-in Helm support only
Why it's wrong here
Cloud Build has Helm support but does not directly combine with Kustomize without additional steps.
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common trap is assuming that Kustomize cannot work with Helm charts. The 'helmCharts' plugin (Option D) is a valid, though experimental, feature that allows direct integration. Additionally, candidates may overlook Skaffold's orchestration capability (Option A) as a stable alternative.
Detailed technical explanation
How to think about this question
Skaffold uses a configuration file (skaffold.yaml) where you can define multiple 'manifests' stages, such as 'helm' for chart rendering and 'kustomize' for overlay application, executing them in order via its 'render' and 'deploy' phases. Under the hood, Skaffold invokes Helm to generate raw YAML, then passes that output to Kustomize for patching, which is useful in multi-cluster deployments where base Helm charts need cluster-specific namespace or label overlays. A real-world scenario is deploying the same microservice to dev, staging, and prod GKE clusters, where Helm provides versioned templates and Kustomize adds environment-specific resource limits or annotations.
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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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: Use Skaffold to run Helm and Kustomize in sequence — Option A is correct because Skaffold can orchestrate both Helm and Kustomize in a single pipeline, allowing you to first render Helm charts and then apply Kustomize overlays for environment-specific customizations. Option D is correct because Kustomize's 'helmCharts' plugin can directly render Helm charts and apply overlays in one step, providing an alternative approach. Both methods enable combining Helm's templating with Kustomize's overlays.
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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