C#

List of C# Interview Questions

Here below we have a list of possible question related to C# and OOPS concept

• Define C#
• Types of Comments
• Define Object
• Define Constructor
• What is Namespace?
• What is Assembly or library? Types of Assembly.
• Difference between Value Type and Reference Type 
• What is Boxing and Unboxing
• What is Managed and Unmanaged code
• What is Static?
• Exception Handling Question
• Difference between Struct and Class
• Difference between abstract and Interface
• Difference between Constant and ReadOnly
• Difference between Ref and Out
• Difference between IEnumerable and IEnumerator
• Difference between IEnumerable and IQueryable
• Four Pillar of OOPS

• Encapsulation
• Abstraction
• Polymorphism
• What is Diamond Problem?
• Inheritance

• What is Sealed Class?
• Collection
• Difference between Generic and Non Generic Collection
• Difference between Hashtable and Dictionary
• Difference between List and Sorted List
• Drifference between Sorted List and Sorted Dictionary
• Difference between array and Arraylist
• What is Array? How many types of Array?
• What is Jagged Array? 
• What is enum?
• What is Partial Class?
• What is Interface?
• What is Abstract Class?
• Difference between Interface and Abstract class.
• Difference between Struct and Class
• Difference between continue and break statement
• What  is Serialization & Deserialization?
• Difference between String and Stringbuilder
• Difference between Array.Copy() and Array.Clone()
• Difference between finalize() and dispose()
• Describe Access Modifier
• What is Delegates? Uses of Delegates?
• What is Events?
• Difference between "is" and "as" operator
• What are indexers?
• What are attributes?
• What is reflection?
• What is regular expression?
• What is Escape Sequence?
• What is XSD file?
• What is Constructor Chaining?
• What is Async and Await? 
• What are extension method? How to use it?
• Difference between Equality operator (=) and Equal() method.
• Explain Anonymous Type
• Difference between var and dynamic
• What is recursive function?
• What is Circular Dependency?
• What is Coalescing Operator?
• What is Threading?
• What is the use of Shadowing?
• What is the use of Yield Keyword?
• Difference between Debug and Release Mode
• Things To Remember