Firebase vs AWS vs Supabase comparison - Practice Questions

Challenge - 5 Problems

🧠 Conceptual

intermediate

Key Feature Differences Between Firebase, AWS, and Supabase

Which cloud service primarily offers a real-time database with built-in synchronization for mobile and web apps?

A AWS

B Firebase

C Supabase

D All three offer this feature equally

💡 Hint

Think about which service is known for its real-time syncing database.

Firebase is well-known for its real-time database that syncs data instantly across clients, which is a core feature not equally matched by AWS or Supabase.

❓ Architecture

intermediate

Choosing a Backend for Serverless Architecture

You want to build a serverless app with managed authentication, database, and storage. Which service provides an all-in-one backend platform with minimal setup?

A AWS with separate services like Cognito, DynamoDB, and S3

B Self-hosted backend on a virtual machine

C Supabase with Postgres, Auth, and Storage

D Firebase with Authentication, Firestore, and Storage

💡 Hint

Look for the platform that bundles these backend services tightly with easy integration.

Firebase offers a tightly integrated backend with Authentication, Firestore database, and Storage services that require minimal setup, ideal for serverless apps.

❓ security

advanced

Security Model Differences

Which service uses PostgreSQL's Row Level Security (RLS) to control data access at a fine-grained level?

A Supabase

B AWS DynamoDB

C Firebase

D AWS S3

💡 Hint

Consider which service is built on top of PostgreSQL.

Supabase uses PostgreSQL and supports Row Level Security (RLS) to control access to data at the row level, providing fine-grained security.

❓ service_behavior

advanced

Behavior of Real-Time Data Sync

When a client updates data in Firebase Realtime Database, what happens to other connected clients?

A Other clients receive the updated data instantly without refreshing

B Other clients must manually refresh to see updates

C Data updates are queued and sent after 5 minutes

D Only the client that updated data sees the change

💡 Hint

Think about the meaning of 'real-time' in Firebase.

Firebase Realtime Database pushes updates instantly to all connected clients, enabling live synchronization without manual refresh.

✅ Best Practice

expert

Best Practice for Scaling Supabase vs AWS

You expect rapid growth and need a backend that scales automatically with minimal management. Which approach is best?

A Use Supabase with its managed Postgres and auto-scaling features

B Use AWS with manual scaling of EC2 instances and RDS databases

C Use AWS Lambda with managed services like DynamoDB and S3

D Use Supabase self-hosted on your own servers

💡 Hint

Consider which service offers fully managed serverless scaling.

AWS Lambda combined with managed services like DynamoDB and S3 provides automatic scaling without server management, ideal for rapid growth.