Free practice test
C# Interview Mock 2
Mock 2 of the C# Interview Test Series: 15 questions on boxing, ref/out/in parameters, override vs new, access modifiers, string equality, null operators, multicast delegates, LINQ Single, HashSet lookups, rethrowing exceptions, async void, GC generations, switch expressions, newer C# features and generic static constructors. Mixed formats (theory, code output, multi-select and numeric), each with a full teaching explanation after you submit.
- Answers save as you go. Move between questions freely, and mark any to come back to.
- The clock starts when you begin, and the test submits itself at 00:00.
- Keyboard: press A–D to choose an option; ← and → move between questions.
- Questions
- 15
- Time
- 20 min
- Right answer
- +1
- Wrong answer
- 0
15 marks in all · pass mark 9
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