React Fundamentals

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Question 1
What is required when defining a functional component in React?
A
The function name must start with an uppercase letter.
B
It must use the export default keyword.
C
It should always accept props as its first argument.
D
It must use React.Component as its base class.
Question 2
What is a component in React?
A
A function or class that returns HTML elements
B
A built-in React method for handling events
C
A JavaScript file that imports CSS styles
D
A React hook for managing state
Question 3
What is the difference between a functional component and a class component?
A
Functional components use this to access state, while class components do not
B
Class components use lifecycle methods, while functional components use hooks
C
Functional components must always return a div
D
Class components cannot accept props
Question 4
What must be included inside a component’s return statement?
A
A single parent JSX element
B
A call to React.createComponent()
C
An object with render and display properties
D
Plain JavaScript code

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