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Page 20 of 20
Explains string immutability, concatenation behavior, and pragmatic use of StringBuilder in .NET.
Compares Azure hosting choices for a .NET API using operational complexity, scaling model, deployment ownership, and workload shape.
Explain why async void is usually dangerous outside event handlers and how exceptions behave differently.
Explains returning EF entities from APIs with practical .NET data-access examples and production trade-offs.