Firebase project creation - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Firebase Project IDs

When creating a Firebase project, what is the main purpose of the Project ID?

A It uniquely identifies your project across all Firebase and Google Cloud services.

B It is used only for billing purposes and can be changed anytime.

C It is a display name visible only to your team members inside the Firebase console.

D It defines the region where your Firebase project data is stored.

💡 Hint

Think about what needs to be unique globally for your project to avoid conflicts.

The Project ID is a unique identifier used by Firebase and Google Cloud to distinguish your project from others. It cannot be changed after creation.

❓ Configuration

intermediate

Firebase Project Creation CLI Command

Which Firebase CLI command correctly creates a new Firebase project with the ID my-firebase-app-123?

A firebase create project my-firebase-app-123

B firebase projects:create my-firebase-app-123

C firebase init project my-firebase-app-123

D firebase new project --id my-firebase-app-123

💡 Hint

Check the official Firebase CLI syntax for creating projects.

The correct command to create a Firebase project using the CLI is firebase projects:create <project_id>.

❓ Architecture

advanced

Firebase Project and Google Cloud Resource Relationship

Which statement best describes the relationship between a Firebase project and Google Cloud Platform (GCP) resources?

A Firebase projects replace GCP projects and do not coexist.

B Firebase projects and GCP projects are completely separate and cannot share resources.

C A Firebase project is a special type of GCP project that automatically enables Firebase services and links to GCP resources.

D Firebase projects are created inside GCP projects but do not have access to GCP services.

💡 Hint

Consider how Firebase integrates with Google Cloud Platform.

Firebase projects are built on top of GCP projects, enabling Firebase services while allowing access to GCP resources.

❓ security

advanced

Firebase Project Permissions Best Practice

What is the best practice for managing permissions when multiple developers work on the same Firebase project?

A Use Firebase IAM roles to grant the minimum necessary permissions to each developer.

B Only the project creator should have access; others should not be added.

C Share the Firebase project credentials openly to speed up collaboration.

D Assign the Owner role to all developers to allow full access to the project.

💡 Hint

Think about the principle of least privilege in security.

Granting minimum necessary permissions using IAM roles reduces security risks and follows best practices.

❓ service_behavior

expert

Firebase Project Quota Limits Impact

If your Firebase project exceeds its free quota limits for Cloud Firestore reads, what will happen to your app's behavior?

A All data in Firestore will be deleted to free up quota.

B Firebase automatically upgrades your project to a paid plan without any interruption.

C Your app will continue to work normally without any impact or notification.

D Firestore requests will be throttled or rejected until quota resets, causing delays or errors in the app.

💡 Hint

Consider what happens when usage exceeds free limits in cloud services.

When quota limits are exceeded, Firebase throttles or rejects requests, which can cause app errors or delays until quota resets or you upgrade your plan.