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C# interview questions

The C# language from syntax to async, concurrency, memory and performance.

79 questions

Questions by difficulty

Easy
25
Medium
31
Hard
17
Expert
6

Subtopics

  • Syntax, Types, Structs & Records11 questions
  • Classes, Interfaces & Polymorphism6 questions
  • Generics6 questions
  • Delegates & Events6 questions
  • LINQ6 questions
  • Exceptions & Nullable References6 questions
  • Collections6 questions
  • Memory, GC & IDisposable7 questions
  • Async & Await6 questions
  • Threads, Locks & Concurrent Collections6 questions
  • Reflection & Attributes6 questions
  • Span & Performance7 questions

Practice adapts to your accuracy, and every answer earns XP on your level for this topic.

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