- what are the event loop and the call stack? - what is closure. - what is hoisting? and what’s the difference between hoisting in variables vs functions? - what is React, its main features, and what makes it different from other frameworks? - what is virtual dom? - what is the algorithm that react uses to determine whether it should re-render or not? - explain class component lifecycle methods. `!important` - what is a state? and what is the difference between state and props? - explain redux lifecycle. - how do we access state from redux? - in RTK query what is the difference between a query and a mutation?