Google ACE Planning and Configuring a Cloud Solution Practice Question
A developer is using Cloud Functions (Gen 2) which is based on Cloud Run. They need to handle events from Cloud Storage when a new object is uploaded. Which event type should they use?
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
✓
google.cloud.storage.object.v1.finalized
In Cloud Functions Gen 2, the event type for Cloud Storage object finalization is 'google.cloud.storage.object.v1.finalized'.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
google.cloud.storage.object.v1.metadataUpdated
Why it's wrong here
google.cloud.storage.object.v1.metadataUpdated is incorrect because it represents an Eventarc event emitted when a bucket object's metadata is overwritten or changed after the object already exists, not when a new object is uploaded. It is not fired during object creation/finalization and therefore would not detect a new file upload, making it unsuitable for a function that reacts to uploads.
- ✓
google.cloud.storage.object.v1.finalized
Why this is correct
google.cloud.storage.object.v1.finalized is the correct Eventarc event type for Cloud Functions (2nd gen) that corresponds to a new object being uploaded or an existing object being overwritten in Cloud Storage. It is the standard event for processing a newly created object, matching the legacy 'object finalized' event but now delivered through Eventarc for 2nd gen functions.
- ✗
google.cloud.storage.object.v1.deleted
Why it's wrong here
google.cloud.storage.object.v1.deleted is wrong because it is only emitted when an object is permanently removed from a bucket, either manually or via lifecycle rules. It has nothing to do with a developer uploading a new object, and using it would cause the function to run only on deletions, not on file creation.
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google.cloud.storage.object.v1.archived
Why it's wrong here
google.cloud.storage.object.v1.archived is incorrect because it fires when a live object version transitions to a non-current (archived) state—typically as part of object versioning or lifecycle transitions to the Archive storage class. It does not trigger on initial upload or creation of an object, so it cannot be used to process new files.
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 |
Go deeper
Related to this question
Learn chapter
Google Cloud Platform Overview
Key term
Cloud Functions
Cloud Functions are serverless compute services that let you run single-purpose code in response to events without managing servers.
Key term
Cloud Run
Cloud Run is a fully managed compute platform from Google Cloud that lets you run containerized applications in a serverless environment, automatically scaling from zero to thousands of requests.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ACE 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 ACE exam.