Your question is Database Security and SQL Injection Prevention. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How do you approach database security, SQL optimization, and preventing injection attacks in distributed systems?
Discuss how you would protect sensitive data, enforce least-privilege access, optimize slow queries across services and replicas, and prevent injection through application and database controls. Explain how you would validate the design, monitor abuse and performance regressions, and respond to a suspected injection incident.