Use Retool platform to build out specific features. Best to check the basic Retool documentation as it does a good job explaining features and mirrors the basics of functionalities you may be asked about. Although interview question tends to range from simple to intermediate levels of what you will see in documentation.
Sigiloso
Good tip is to talk your solution out as you go. It helps demonstrate how you think, problem solve, and how you are translating the prompt to an answer.