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Study guide
Firebase quiz questions and answers
Review all 5 questions at your own pace. Open each answer to see the correct response and a concise explanation of the concept.
1Which Firebase feature manages user sign-in?
Correct answer
Firebase Authentication
Firebase Authentication supports email, phone, social providers, and custom auth flows.
2What do Firebase security rules control?
Correct answer
Who can read and write data
Rules protect Firestore, Realtime Database, and Storage based on auth and data conditions.
3Which Firebase database syncs JSON data in real time?
Correct answer
Realtime Database
Realtime Database stores JSON-like data and pushes live updates to connected clients.
4What is Cloud Functions for Firebase used for?
Correct answer
Running backend code on events or HTTP requests
Cloud Functions execute server-side logic triggered by Firebase events or requests.
5What is a common Firebase performance mistake?
Correct answer
Reading too much nested data at once
Broad reads can download large data trees and slow down apps.