Google PCA Practice Question: Managing and Provisioning a Solution Infrastructure
A developer is writing a Cloud Function that processes files uploaded to a Cloud Storage bucket. Which trigger 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
✓
Cloud Storage trigger
Cloud Functions can be triggered by Cloud Storage events such as object finalize, delete, etc.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
HTTP trigger
Why it's wrong here
HTTP triggers are for direct HTTP requests, not storage events.
- ✗
Firestore trigger
Why it's wrong here
Firestore triggers are for Firestore document changes.
- ✓
Cloud Storage trigger
Why this is correct
A Cloud Storage trigger fires on object changes.
- ✗
Pub/Sub trigger
Why it's wrong here
Pub/Sub triggers are for messages, not directly for storage events.
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
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
Cloud storage
Cloud storage is a service that lets you save data on remote servers accessed over the internet instead of on your computer's hard drive.
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