Course Content
Lesson 1:- Stack,Heap,Boxing,Unboxing,Array,ArrayList,Generics,Threading
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Lesson 1:- Covers 30 important C# Interview questions.
01:03:22
Lesson 2 – Questions on Delegates,Event and Delegates vs Events.
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Delegates,Event and Delegates vs Events. 6 Questions
20:08
Source Code
Lesson 3:- OOP, Abstraction,Encapsulation,Inheritance, Overriding & overloading.
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OOP,Abstraction,Encapsulation,Inheritance,Virtual,Overriding and overloading.
17:38
Source Code
Lesson4:- Polymorphism,Static vs Dynamic polymorphism and operator overloading.
5 Questions
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Polymorphism, Static vs Dynamic polymorphism and operator overloading.
06:33
Lesson 5:- Tricky Questions around Abstract classes and Interfaces.
13 Questions
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Tricky Questions around Abstract classes and Interfaces.
24:38
Lesson 6 :- Answering the most asked Question “Abstract classes vs Interface”
Question 63 :- Difference between Abstract Class & Interfaces?
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How to Answer Abstract class vs Interface Question
24:55
Lesson 7:- Questions around constructors & parent child constructor.
5 Questions.
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How to answer Questions around constructors.
10:08
Lesson 8:- Questions around Shadowing,Sealed,Nested classes and partial classes.
11 Questions.
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Questions around Shadowing,Sealed,Nested classes and partial classes.
23:50
Lesson 9:- Questions Around SOLID principles , Dependency injection (DI) and IOC
20 Questions
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Questions Around SOLID principles , Dependency injection (DI) and IOC
48:34
Lesso 10:- Explain & Differentiate Composition, Aggregation & Association in C#.
6 Questions.
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Explain & Differentiate Composition, Aggregation and Association in C#.
18:08
Lesson 11:- Crack questions on Stack,Heap,Boxing,Unboxing,Value & reference types
21 Questions.
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Crack questions on Stack, Heap, Boxing, Unboxing, Value types , reference types
56:59
Lesson 12 :- What is Garbage collector, Managed vs UnManaged code, Memory Leaks.
24 Questions.
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Part 12 – What is Garbage collector, Managed vs UnManaged code, Memory Leaks.
01:13:26
Lesson 13 :- Design Pattern Basics, Pattern types & Singleton Pattern.
11 Questions.
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Lesson 13 :- Explain Design Pattern Basics, Types and Singleton Pattern.
39:01
Lesson 14 :- Repository and Unit of Work Design Pattern Interview Questions.
10 Questions.
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Lesson 14 :- Repository and Unit of Work Design Pattern Interview Questions.
45:56
Lesson 15:- Most asked Factory Pattern, DI and IOC Interview Questions.
12 Questions.
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Lesson 15:- Most asked Factory Pattern, DI and IOC Interview Questions.
42:49
Lesson 16 :- The Real Factory and Abstract Factory Patterns.
8 Questions.
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Lesson 16 :- The Real Factory and Abstract Factory Patterns.
34:29
Part 15 and Part 16 Source Code
C# interview questions with answers PDF
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C# interview questions with answers PDF
C# Interview Questions with Answers

In this lab we have covered 30 Important .NET C# Interview questions and Answer:-

  • Question 1 :- Explain difference between .NET and C# ?

  • Question 2 :- .NET Framework vs .NET Core vs .NET 5.0

  • Question 3 :- What is IL ( Intermediate Language) Code ?

  • Question 4 :- What is the use of JIT ( Just in time compiler) ?

  • Question 5 :- Is it possible to view IL code ?

  • Question 6 :- What is the benefit of compiling in to IL code ?

  • Question 7 :- Does .NET support multiple programming languages ?

  • Question 8 :- What is CLR ( Common Language Runtime) ?

  • Question 9 :- What is managed and unmanaged code ?

  • Question 10 :- Explain the importance of Garbage collector ?

  • Question 11 :- Can garbage collector claim unmanaged objects ?

  • Question 12 :- What is the importance of CTS ?

  • Question 13 :- Explain CLS ?

  • Question 14 :- Difference between Stack vs Heap ?

  • Question 15 :- What are Value types & Reference types?

  • Question 16 :- Explain boxing and unboxing ?

  • Question 17 :- What is consequence of boxing and unboxing ?

  • Question 18 :- Explain casting,implicit casting and explicit casting ?

  • Question 19 :- What can happen during explicit casting ?

  • Question 20 :- Differentiate between Array and ArrayList ?

  • Question 21 :- Whose performance is better array or arraylist ?

  • Question 22 :- What are generic collections ?

  • Question 23 :- What are threads (Multithreading)?

  • Question 24 :- How are threads different from TPL ?

  • Question 25 :- How do we handle exceptions in C#(try/catch)?

  • Question 26 :- What is the need of finally?

  • Question 27 :- Why do we need the out keyword ?

  • Question 28 :- What is the need of Delegates ?

  • Question 29 :- What are events ?

  • Question 30 :- Whats the difference between Abstract class and interface ?

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