- A
Set up a Cloud Monitoring alert that triggers a rollback via Cloud Functions
Why wrong: While this could be implemented, it requires external monitoring and Cloud Functions, not a native Cloud Deploy feature.
- B
Configure a postDeploy hook that checks deployment status and triggers a rollback
Why wrong: Incorrect because postDeploy hooks only run on successful rollouts, not on failures. They cannot initiate an automatic rollback.
- C
Set the 'rollback-policy' in the delivery pipeline YAML
Correct. Cloud Deploy allows configuring a rollback policy in the delivery pipeline YAML as part of the rollout strategy, enabling automatic rollback on failure.
- D
Use the --auto-rollback flag in the gcloud deploy release command
Why wrong: Incorrect. There is no '--auto-rollback' flag in the gcloud deploy release command.
PCDE Cloud Deploy Practice Question
This PCDE practice question tests your understanding of building and implementing ci/cd pipelines for a service. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: cloud Deploy. 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 company uses Cloud Deploy to manage deployments to GKE. They want to automatically roll back a release if a deployment fails. How should they configure 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
Set the 'rollback-policy' in the delivery pipeline YAML
Cloud Deploy supports automated rollbacks through rollout strategies defined in the delivery pipeline YAML. Strategies like canary or blue/green can include metric-based analysis that triggers an automatic rollback if the metrics fall below a threshold. This is configured under the 'strategy' field, often referred to as a rollback policy. Option A (Cloud Monitoring + Cloud Functions) is an external workaround and not a native Cloud Deploy feature. Option B is incorrect because postDeploy hooks run only after a successful rollout and are not triggered on failure. Option D is invalid as there is no '--auto-rollback' flag in the gcloud deploy release command.
Key principle: Cloud Deploy
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set up a Cloud Monitoring alert that triggers a rollback via Cloud Functions
Why it's wrong here
While this could be implemented, it requires external monitoring and Cloud Functions, not a native Cloud Deploy feature.
- ✗
Configure a postDeploy hook that checks deployment status and triggers a rollback
Why it's wrong here
Incorrect because postDeploy hooks only run on successful rollouts, not on failures. They cannot initiate an automatic rollback.
- ✓
Set the 'rollback-policy' in the delivery pipeline YAML
Why this is correct
Correct. Cloud Deploy allows configuring a rollback policy in the delivery pipeline YAML as part of the rollout strategy, enabling automatic rollback on failure.
Related concept
Cloud Deploy
- ✗
Use the --auto-rollback flag in the gcloud deploy release command
Why it's wrong here
Incorrect. There is no '--auto-rollback' flag in the gcloud deploy release command.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often confuse postDeploy hooks as a mechanism for rollback, but they only execute on success. The correct native approach is to define a rollout strategy with automated rollback policies.
Trap categories for this question
Command / output trap
Incorrect. There is no '--auto-rollback' flag in the gcloud deploy release command.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Cloud Deploy
- Rollout Strategy
- Automated Rollback
- PostDeploy Hook
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
Cloud Deploy
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. Cloud Deploy Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Visual reference
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Review cloud Deploy, then practise related PCDE questions on the same topic to reinforce the concept.
- →
Building and Implementing CI/CD Pipelines for a Service — study guide chapter
Learn the concepts, then practise the questions
- →
Building and Implementing CI/CD Pipelines for a Service practice questions
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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 — Cloud Deploy.
What is the correct answer to this question?
The correct answer is: Set the 'rollback-policy' in the delivery pipeline YAML — Cloud Deploy supports automated rollbacks through rollout strategies defined in the delivery pipeline YAML. Strategies like canary or blue/green can include metric-based analysis that triggers an automatic rollback if the metrics fall below a threshold. This is configured under the 'strategy' field, often referred to as a rollback policy. Option A (Cloud Monitoring + Cloud Functions) is an external workaround and not a native Cloud Deploy feature. Option B is incorrect because postDeploy hooks run only after a successful rollout and are not triggered on failure. Option D is invalid as there is no '--auto-rollback' flag in the gcloud deploy release command.
What should I do if I get this PCDE question wrong?
Review cloud Deploy, then practise related PCDE questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Cloud Deploy
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Last reviewed: Jul 4, 2026
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