APIs are the backbone of modern web applications — especially in domains like banking where security, performance, and reliability are non-negotiable. Here are 10 must-know questions for .NET API developers, each explained with why it’s asked and a strong senior-level answer....

Exception handling is critical to building resilient and fault-tolerant applications. These questions help showcase your experience in writing safe, reliable .NET code — especially in banking, enterprise, and high-availability environments....

Understanding how memory is managed and how garbage collection (GC) works in .NET is essential for writing performant, scalable applications — especially in environments like banking, finance, and real-time services....