Front End Development Front End Development Frameworks & State Management 3

Question 1

What is the purpose of React Context API?

Accepted Answer

To provide global state that can be accessed by any component without prop drilling

Answer

To handle HTTP requests

Answer

To optimize rendering performance

Answer

To manage component animations

Question 2

In React, what does the 'key' prop help with when rendering lists?

Accepted Answer

Helping React identify which items have changed, added, or removed for efficient re-rendering

Answer

Styling list items

Answer

Sorting list items

Answer

Adding event listeners to list items

Question 3

What is two-way data binding in Angular?

Accepted Answer

Synchronizing the model and view so changes to one are automatically reflected in the other

Answer

Fetching data from two different APIs

Answer

Using two separate state stores

Answer

Binding two components together

Question 4

Which state management library is most associated with Vue.js applications?

Accepted Answer

Pinia

Answer

Redux

Answer

MobX

Answer

Zustand

Question 5

What is server-side rendering (SSR) in the context of React frameworks like Next.js?

Accepted Answer

Generating HTML on the server for each request so users receive a fully rendered page

Answer

Running React in a Node.js API server

Answer

Storing React state on the server

Answer

Using React without a build step

Question 6

What is the purpose of React.memo()?

Accepted Answer

To memoize a functional component so it only re-renders when its props change

Answer

To store a value in a ref

Answer

To create a context provider

Answer

To handle asynchronous state updates