C# Quizzes (MCQs)

Level 1 Fundamentals Syntax & Logic
Basics & Syntax Main method, Console I/O, Comments
01_START 
Variables Primitive types, Literals, Casting
02_TYPES 
Operators Arithmetic, Logical, Ternary
03_LOGIC 
Control Flow If/Else, Switch, Pattern Matching
04_FLOW 
Loops For, Foreach, While, Break
05_LOOPS 
Arrays & Strings StringBuilder, Immutability, Operations
06_DATA_S 
Level 2 OOP Core Object Oriented Design
Methods Ref, Out, Params, Overloading
07_METH 
Classes Constructors, Static, Properties
08_CLASS 
Encapsulation Public, Private, Protected, Internal
09_MODS 
Polymorphism Virtual, Override, Base, New
10_POLY 
Abstraction Abstract Classes vs Interfaces
11_ABS 
Value Types Structs, Enums, Stack vs Heap
12_VAL 
Level 3 Intermediate Collections & LINQ
Generics List, Dictionary, Generic Classes
13_GEN 
LINQ Lambda, Where, Select, Join
14_LINQ 
Events Action, Func, Delegates, Pub/Sub
15_EVNT 
Error Handling Try/Catch, Custom Exceptions
16_ERR 
Level 4 Advanced High Performance & Modern C#
Async/Await Tasks, TPL, Deadlock Avoidance
17_ASYNC 
DI & IoC Scoped, Transient, Singleton
18_DI 
Memory GC, IDisposable, Using statements
19_MEM 
Modern C# Records, Span, Init properties
20_C#12 