React Props MCQ Props Practice Questions

Direction: Choose the correct option

What are props in React?

A. Mutable data that can be changed by the child

B. Read-only data passed from a parent to a child

C. Internal data managed by a component

D. Global state

Direction: Choose the correct option

How do you pass a prop named 'name' with value 'John' to a component?

A. <MyComponent name="John" />

B. <MyComponent name=John />

C. <MyComponent {name: 'John'} />

D. <MyComponent name='John' />

Direction: Choose the correct option

Can a child component modify its props?

A. No, props are immutable

B. Yes, by reassigning

C. Only if the parent allows

D. Yes, using this.props.modify()

Direction: Choose the correct option

What is the purpose of defaultProps?

A. To define the prop types

B. To make props required

C. To initialize state

D. To set default values for props if not provided

Direction: Choose the correct option

Given , how does the Child component receive the prop?

A. As an argument to the function (functional) or this.props (class)

B. Through a context

C. It cannot receive

D. Via a global variable

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