Practice test

C# Interview Mock 4

Mock 4 of the C# Interview Test Series: 15 medium questions on boxing structs through interfaces, Span<T> rules, default interface methods, Equals and GetHashCode, boxing nullable values, delegate conversions, deferred LINQ execution, GroupBy vs ToLookup, mutable hash keys, exceptions in finally, async void, Task.WhenAll, the dispose pattern, switch-expression patterns and required/init members. Mixed formats (theory, code output, debugging, multi-select and numeric), each with a full teaching explanation after you submit. Included in Full Access.

Questions

15

Time

25 min

Right answer

+1

Wrong answer

0

15 marks in all · pass mark 9