Multi-tenancy patterns in Firebase - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is multi-tenancy in cloud applications?

Multi-tenancy means one app or system serves many different users or groups, called tenants, while keeping their data and settings separate.

beginner

Name one common multi-tenancy pattern used in Firebase.

One common pattern is using separate collections or documents for each tenant in Firestore, so data stays isolated but uses the same database.

intermediate

What is the benefit of using a shared database with tenant IDs in Firebase?

It saves resources by using one database but keeps tenant data separate by tagging data with tenant IDs for filtering and security.

intermediate

How can Firebase Security Rules help in multi-tenancy?

Security Rules can check tenant IDs in requests to allow users to access only their own tenant's data, protecting privacy and data separation.

advanced

What is a downside of using separate Firebase projects per tenant?

It can increase management overhead and cost because each tenant needs its own project setup and resources.

Which multi-tenancy pattern uses one database but separates tenant data by tagging it?

A No separation, all data mixed

B Shared database with tenant IDs

C Separate Firebase project per tenant

D Separate database per tenant

Shared database with tenant IDs keeps data in one place but uses tags to separate tenant data.

What Firebase feature helps enforce data access rules per tenant?

A Firebase Security Rules

B Firebase Hosting

C Firebase Analytics

D Firebase Cloud Messaging

Firebase Security Rules control who can read or write data, useful for tenant data separation.

What is a main advantage of using separate Firebase projects for each tenant?

A Strong isolation of tenant data

B Lower cost and easier management

C Faster queries across tenants

D Simpler code with no tenant IDs

Separate projects isolate tenant data completely, improving security and fault isolation.

Which pattern might increase cost and management effort in Firebase multi-tenancy?

A Single collection for all tenants

B Shared database with tenant IDs

C Using Firebase Hosting only

D Separate Firebase projects per tenant

Separate projects require more resources and setup per tenant, increasing cost and management.

Why is tagging data with tenant IDs important in a shared database?

A To reduce database size

B To speed up database backups

C To filter and secure tenant data access

D To allow anonymous access

Tenant IDs help identify and restrict data access to the right tenant.

Explain the main multi-tenancy patterns you can use with Firebase and their pros and cons.

Think about data isolation, cost, and management effort.

How do Firebase Security Rules support multi-tenancy in a shared database setup?

Focus on how rules enforce data separation.