React Native React Native Core Components & APIs 2

Question 1

Which component should you use to display images from a URL in React Native?

Accepted Answer

Image

Answer

The Image component in React Native handles both local and remote image rendering with props like source and resizeMode.

Question 2

What is the purpose of the Modal component in React Native?

Accepted Answer

To display content in a layer above the main view

Answer

Modal presents content in a full-screen overlay on top of the enclosing view, blocking interaction with the content behind.

Question 3

Which React Native component is used for single-line user text input?

Accepted Answer

TextInput

Answer

TextInput is the standard React Native component for capturing text from the user's keyboard.

Question 4

What does the resizeMode prop control on a React Native Image component?

Accepted Answer

How the image scales to fit its container

Answer

resizeMode determines how an image is resized relative to its container using values like cover, contain, stretch, or center.

Question 5

Which API in React Native is used to show native alert dialogs?

Accepted Answer

Alert

Answer

The Alert API launches a native dialog with a title, message, and optional buttons on both iOS and Android.

React Native Practice Test