React Lifting State Up MCQ Lifting State Up Practice Questions

Direction: Choose the correct option

What does 'lifting state up' mean in React?

A. Moving state to a global store

B. Moving state to a higher-level component to share it with siblings

C. Removing state from components

D. Using state in a parent component only

Direction: Choose the correct option

Why would you lift state up?

A. To allow multiple sibling components to share and sync data

B. To avoid props

C. To reduce re-renders

D. To make state local

Direction: Choose the correct option

How do sibling components communicate after lifting state up?

A. They cannot communicate

B. Through callbacks passed from the parent

C. Using global events

D. Directly via props

Direction: Choose the correct option

Consider two sibling components that need to share input values. Where should the state live?

A. In a context

B. In each component

C. In a global store

D. In their common parent

Direction: Choose the correct option

What is the direction of data flow when state is lifted up?

A. No flow

B. From child to parent only

C. Bidirectional

D. From parent to child via props, and child to parent via callbacks

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