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Keys are given to a list of elements in react. These keys should be - 

Correct Answer : C

Which is used to update the state?

Correct Answer : B

How many elements does a react component return?

Correct Answer : C

What function allows you to render React content in an HTML page?

Correct Answer : C

In component lifecycle which one is executed before rendering?

Correct Answer : C

Which of the following called fat arrow function in react?

Correct Answer : D

Arbitrary inputs of components in React are called

Correct Answer : B

How can you access the state of a component from inside of a member function?

Correct Answer : B

Which of the following method define default values for properties using props?

Correct Answer : D

Props are __________ into other components

Correct Answer : A

How do you write an inline style specifying the font-size:12px and color:red; in JSX

Correct Answer : B

React JS uses _____ to increase performance

Correct Answer : B

What will happen if you render an input element with disabled = {false}

Correct Answer : A

What is ReactJS?

Correct Answer : C

React.js covers only the view layer of the app.

Correct Answer : A

Which method in a React Component is called after the component is rendered for the first time?

Correct Answer : B

React js data flow implementation?

Correct Answer : A

What happens when you call setState() inside render() method?

Correct Answer : B

Which of the following is correct syntax for a button click event handler, foo?

Correct Answer : D

What is Babel?

Correct Answer : D

To achieve dynamic UI updates. Which of the following needs to be updated ?

Correct Answer : C

What is state in React?

Correct Answer : B

What does the "webpack" command do?

Correct Answer : C

In React what is used to pass data to a component from outside?

Correct Answer : C

Which of the following is the correct data flow sequence of flux concept?

Correct Answer : B

What are the two ways that data gets handled in React?

Correct Answer : A

Everything in React is a _____________

Correct Answer : B

What is a controlled input element?

Correct Answer : B

Which of the following represented the Pre and post life cycle methods of components ?

Correct Answer : D

What is the second argument for setState useful for?

Correct Answer : A