web developement

which HTML tag is used to define interactive controls for forms?

• <input>

• <button>

• <form>

• <select>

which CSS properly is used to make text bold?

• text decoration

• font weight

• font style

• font size

Which of the following correctly selects all <p> elements inside a <div> in CSS?

• div p

• div.p

• p div

• div+p

In JavaScript, which keyword is used to declare a variable that cannot be reassigned?

• var

• let

• const

• static

What will typeof null return in JavaScript?

• "null"

• "undefined"

• "object"

• "string"

Which function converts a JSON string into an object in JavaScript?

• JSON.parse()

• JSON.stringify

• parseJSON()

• convertJSON()

What is the default value of the display property for a <div>?

• inline

• inline-block

• block

• flex

What does the useState hook return in React?

• only the current state

• only the function to update the state

• A pair: current state and update function

• a class based state object

In React, what is the purpose of the key prop in lists?

• to style elements uniquely

• to identify which items changed

• to improve rendering speed

• to bind event listeners

Which of the following is NOT a JavaScript data type?

• boolean

• undefined

• char

• symbol