PwC interview question

GenAI What is RAG (Retrieval-Augmented Generation)? Write a retriever pipeline code for RAG. Frontend / JavaScript What is the CSS box model? What are pseudo selectors in CSS? What is the difference between Flexbox and Grid? What is Redux? What is immutability in Redux? What is a closure in JavaScript? Explain the JavaScript event loop. What is the difference between map() and forEach()? What is the return type of forEach()? Write a Promise code snippet. Write a closure code snippet. Explain hoisting with a code snippet. Solve 5 JavaScript coding problems.