This document contains questions about Flutter, Dart, Progressive Web Apps (PWA), Firebase, and data types in Dart. Some of the topics covered include: 1. What Flutter is and its advantages 2. The Flutter architecture and important features 3. Build modes, widgets, and their importance in Flutter 4. What Dart is and its importance 5. The difference between runApp() and main() 6. Packages, plugins, and editors used for Flutter development 7. How Firebase works and its features for building web and mobile applications.

1. MAD & PWA VIVA QUESTIONS
1. What is Flutter?
2. What are the advantages of using flutter
3. Explain the flutter architecture
4. List some important features of flutter.
5. What are different build modes in flutter?
6. Explain the flutter widget and write its importance.
7. What are the types of widgets present in flutter?
8. What do you mean by Dart? Write its importance.
9. Write the difference between runApp() and main() in flutter.
10. Explain packages and plugins in Flutter.
11. Name some best editors for flutter development.
12. What do you mean by keys in flutter? When one should use it.
13. Explain Container class in a flutter.
14. Is Flutter Open Source or not?
15. Write difference between Hot reload and Hot restart.
16. Explain pubspec.yaml file.
17. What are the Flutter widgets?
18. What do you understand by the Stateful and Stateless widgets?
19. Which one is better between Flutter and React Native?
20. Why is the build() method on State and not StatefulWidgets?
21. What is the difference between WidgetsApp and MaterialApp?
22. What is a progressive web app?
23. What are some benefits of PWA?
24. Explain the service worker lifecycle
25. What is Firebase?
26. What is Firebase architecture?
27. Is firebase frontend or backend?
28. What are the features of Firebase?
29. What is the difference between Firebase and MongoDB ?

2. 30. What is the push method in firebase?
31. What is the set() method in firebase?
32. Which method is used to update the firebase data?
33. Is Firebase key value?
34. How can we create a unique key and use it to send data in Firebase?
35. Does Firebase support descending sort order?
36. How do I get particular data from Firebase?
37. How to use Firebase Database REST API?
38. What are the data types in Dart language?
39. What is type-checking in Dart?