Redux Introduction MCQ Redux Basics Practice Questions

Direction: Choose the correct option

What is Redux?

A. A routing library

B. A predictable state container for JavaScript apps

C. A testing framework

D. A React component library

Direction: Choose the correct option

What are the core principles of Redux?

A. Multiple stores, mutable state, impure reducers

B. Component state

C. Two-way data binding

D. Single source of truth, state is read-only, changes are made with pure functions

Direction: Choose the correct option

What is a store in Redux?

A. A component that stores data

B. An object that holds the application state

C. A function that updates state

D. A middleware

Direction: Choose the correct option

What are actions in Redux?

A. Functions that modify state

B. Components that dispatch events

C. Reducers

D. Plain JavaScript objects that describe what happened

Direction: Choose the correct option

What is a reducer?

A. A function that dispatches actions

B. A pure function that takes previous state and an action, and returns next state

C. A store enhancer

D. A component that reduces rendering

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