Question

question 4
which component connects javascript code with native apis in react native architecture?
o a. web engine
o b. bridge
o c. router
o d. compiler

question 5
which feature of pwa allows users to install the app on home screen?
o a. dom api
o b. service workers
o c. add to home screen
o d. app manifest only

question 6
which framework is created by google for building cross - platform apps?
o a. react native
o b. flutter
o c. ionic
o d. xamarin

question 7
which framework is developed by meta for cross - platform development?
o a. flutter
o b. xamarin
o c. react native

Explanation:

• Question 4: In React Native architecture, the Bridge is responsible for connecting JavaScript code with native APIs. It acts as an intermediary to enable communication between the JavaScript layer and the native platform layer.
• Question 5: The "Add to Home Screen" feature of PWA (Progressive Web App) allows users to install the app on the home screen. While the app manifest is involved in providing metadata for this feature, the specific action - enabling term is "Add to Home Screen". Service workers are for background tasks like offline caching, and DOM API is for interacting with the Document Object Model.
• Question 6: Flutter is a framework created by Google for building cross - platform apps. React Native is from Meta (formerly Facebook), Ionic is based on web technologies (HTML, CSS, JavaScript) with a focus on hybrid apps, and Xamarin is from Microsoft.
• Question 7: React Native is developed by Meta (formerly Facebook) for cross - platform development. Flutter is from Google, Xamarin is from Microsoft.

Answer:

• Question 4: B. Bridge
• Question 5: C. Add to Home Screen
• Question 6: B. Flutter
• Question 7: C. React Native