Online Test ReactJS

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You have 6 minute to answer 19 questions, after that you will not be able to continue the test.

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Input field that does not supply a value is called as
One can define default values for properties, props, using which of the following method?
To use native javascript as an attribute value, the expression should be wrapped within
Which of the following is used to trigger a UI update?
Life cycle methods of a components fall under following categories?
The default value of input field could be set using which of the following attribute?
A component can mutate its properties as and when required
A parent component could access or read its children components properties
Mixins are used to take care of cross-cutting concerns
An owner component defines its children component within render method

ReactJS renders Components (classes) if the element is defined in

Which of the following methods change the state of the component?
Pre and post lifecycle methods of components are represented using
The value of textarea is set using its children in the same way like HTML
Which of the following mounting methods is/are invoked before the component is inserted into DOM?
PropTypes is used for
ReactJS renders HTML tags if the element is defined in
Data flow from owner to owned components using which of the following?
Change or update to large number of nodes is optimized using which of the following techniques?

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