React - Online MCQs, Quiz and Practice Questions

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React

React

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Q1. React Js covers ___
1. User Interface layer in an application
2. Data layer in an application
3. none
4. Both
Q2. State in react is
1. None of the above
2. Internal storage of the component
3. Both of the above
4. A permanent storage
Q3. what is the default port where webpack-server will run
1. 3333
2. 6020
3. 3030
4. 8080
Q4. Who created React.Js?
1. Jordan Walke
2. Jordan mike
3. Tim Lee
4. Jordan Lee
Q5. ______is used for handling view layers for websites.
1. QUnit
2. none of the mentioned choices
3. React
4. Parsley
Q6. ____is used in ReactJs to increase performance
1. Original DOM
2. none of the mentioned choices
3. BOTH
4. Virtual DOM
Q7. _______is used to render React content in an HTML page?
1. ReactDOM.start()
2. React.mount()
3. ReactDOM.render()
4. React.render()
Q8. Select the description best suitable for ReactJs
1. Client side framework
2. none of the mentioned choices
3. server side framework
4. A Library for building interaction interfaces
Q9. What about props in react is correct?
1. none
2. be changed in side other component
3. be changed inside the component
4. Not be changed in the component
Q10. The number of valid react component can return
1. 2
2. 3
3. 1
4. 4

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