💡 Remember: Interviewers are looking for practical thinking, trade-offs, and experience—not just textbook answers.

🔹 How would you design a high-throughput REST API that handles millions of requests?

Business Use Case: “Our new real-time eligibility check API will be used by thousands of provider offices, and we expect it to handle millions of requests per day with low latency. How would you design it to be highly available and scalable?”