Google PCA Practice Question: Managing and Provisioning a Solution Infrastructure
A company uses Cloud Deployment Manager to manage infrastructure. They want to roll back to a previous deployment state after a failed update. What is the recommended approach?
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
✓
Run gcloud deployment-manager deployments update --config <previous_manifest>
Deployment Manager stores the deployment manifests. You can use an update with a previous manifest to revert to a known good state. Deleting and recreating is not a rollback. Partial updates are not supported directly.
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 gcloud deployment-manager deployments rollback --deployment <name>
Why it's wrong here
There is no rollback command in Deployment Manager CLI.
- ✗
Use the --update-policy=PARTIAL flag to selectively revert changes
Why it's wrong here
Deployment Manager does not support partial update policies.
- ✗
Delete the deployment and recreate it from the previous template
Why it's wrong here
This is disruptive and not a recommended rollback approach.
- ✓
Run gcloud deployment-manager deployments update --config <previous_manifest>
Why this is correct
This updates the deployment to the configuration defined in the previous manifest, effectively rolling back.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
CAN
A CAN (Controller Area Network) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other without a host computer.
Key term
Deployment Manager
Deployment Manager is a Google Cloud service that lets you define and manage your cloud resources using declarative templates, so you can create, update, and delete infrastructure as a single unit.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA 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 PCA exam.