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Interface vs. Abstract Class in .Net Core:

Q01. What is the use of Abstract Class and Interface in .Net? Q02. What is Abstract Class in .Net? Q03. What is Interface in .Net? Q04. What are the current fundamental rules of using Abstract Class in .Net? Q05. What are the things that are allowed in an Abstract Class? Q06. What are the things that are not allowed in an Abstract Class? Q07. What is the difference between the traditional Interface and the current .Net Core Interface? Q08. What are the new features allowed in the current .Net Core Interface?? Q09. What are the features that are not allowed in the .Net Core Interface? Q10. What are the similarities between Abstract Class and C# 8 Interface? Q11. What is the difference between Abstract Class and Interface? Q12. If both Abstract Classes and Interfaces are used for abstraction, what distinguishes them? Q13. What are the recent features introduced for the interface in .Net?

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Difference Between Singleton Class vs. Static Class:

Q01. What is Static Class? Q02. What are the core features of the Static Classes? Q03. What are the fundamental rules of the Static Classes? Q04. What is Singleton? Q05. What are the different types of Singleton? Q06. What are the different ways to implement a Singleton? Q07. What are the core components of a Singleton Class? Q08. What are the similarities between Static Class vs. Singleton? Q09. What is the difference between Singleton vs. Static Class?

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Interface vs. Abstract Class in .Net Core:

Q01. What is the use of Abstract Class and Interface in .Net? Q02. What is Abstract Class in .Net? Q03. What is Interface in .Net? Q04. What are the current fundamental rules of using Abstract Class in .Net? Q05. What are the things that are allowed in an Abstract Class? Q06. What are the things that are not allowed in an Abstract Class? Q07. What is the difference between the traditional Interface and the current .Net Core Interface? Q08. What are the new features allowed in the current .Net Core Interface?? Q09. What are the features that are not allowed in the .Net Core Interface? Q10. What are the similarities between Abstract Class and C# 8 Interface? Q11. What is the difference between Abstract Class and Interface? Q12. If both Abstract Classes and Interfaces are used for abstraction, what distinguishes them? Q13. What are the recent features introduced for the interface in .Net?

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Order Precedence of Constructor Execution in C#:

Q01. What is the order precedence of the constructor execution in C#? Q02. What is the constructor execution order in C#? Q03. What is the constructor execution sequence in the case of static constructors? Q04. What is the constructor execution order in the C# class? Q05. What is the constructor execution order in the C# structure? Q06. What is the constructor execution order in inheritance?

[crackjob]

Order Precedence of Constructor Execution in C#:

Q01. What is the order precedence of the constructor execution in C#? Q02. What is the constructor execution order in C#? Q03. What is the constructor execution sequence in the case of static constructors? Q04. What is the constructor execution order in the C# class? Q05. What is the constructor execution order in the C# structure? Q06. What is the constructor execution order in inheritance?

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Fullstack Interview Questions and Answers:

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C# Interview Questions and Answers - Part 19:

Q184. What is the difference between Routing in ASP .Net Core 2.0 and ASP .Net Core 3.0? Q185. What is End Point? What is End Point Routing in ASP .Net Core? Q186. How does the End Point Routing work in ASP .Net Core MVC? Q187. How can you define endpoints in ASP .Net Core? Q188. What is UseEndpoints() middleware in ASP .Net MVC Core? Q189. What is POST Tunneling Middleware in ASP .NET Core? What is UseHttpMethodOverride() middleware in ASP .Net Core? Q190. How can you enforce HTTPS in ASP .NET Core Project? Q191. What is OWIN? How can you use OWIN in ASP .NET Core? Q192. What is SignalR in ASP .NET Core? Q193. What is a Secret Manager in ASP .Net Core?

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C# Interview Questions and Answers - Part 14:

Q141. What is the difference between Mutex and Monitor? Q142. What is Semaphore C#? How does the Semaphore work? Q143. What is deadlock? How can you prevent deadlock in C#? Q144. What do you mean by thread-safe? How can you share data between multiple threads? Q145. How can you retrieve data from a thread? What is a callback method? Q146. What is Annonumous Method in C#? Q147. What is Lambda Expression in C#? Q148. What is a thread? What is the thread life cycle or different states of a thread? Q149. What is the difference between task.wait(), task.delay(), and thread.sleep() in C#? Q150. What is string interpolation in C#?

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C# Interview Questions and Answers - Part 13:

Q131. What is TPL in the .Net? Why TPL is required in C#? Q132. What is the difference between ForEach and Parallel.ForEach loop in C#? Q133. What is the difference between Standard For Loop and Parallel.For Loop in C#? Q134. What is the difference between task, process, and thread? Q135. What is Multi-threading? What is the difference between Multi-threading vs MultiTasking or Multi-threading vs Concurrency? Q136. What is the difference between Concurrency and Parallelism? Are they same as async programming? Q137. What is asynchronous programming? What is the use of async and await keywords in C#? Q138. What is a Task in C#? What is the difference between task and thread? Q139. What is synchronization and why it is important? Q140. What is the difference between Join and Lock synchronization?

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C# Interview Questions and Answers - Part 12:

Q121. What is the difference between final, finally, and finalize? Q122. What is the difference between First() and FirstOrDefualt() in C#? Q123. What is the volatile keyword? What is the use of volatile keywords in C#? Q124. What is the difference between Deferred Execution vs Immediate Execution? or What is the difference between Lazy Operators vs Greedy Operators? Q125. What is the difference between Lazy Loading vs Early Loading in C#? Q126. What is the difference between Late Binding and Lazy Loading? Are both the same? Q127. What is the difference between Early Binding and Early Loading? Are both the same? Q128. What is the difference between "this" vs "base" keyword in C#? Q129. What is the difference between foreach loop and for loop in C#? Q130. What is the difference between instance field and property in the C# class?

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C# Interview Questions and Answers - Part 11:

Q101 What is Data Annotation in C#? How can you do remote validation using it? Q102. What is Reflection? What is the use of reflection in C#? Q103. What is LINQ in C#? Q104. What is Extension Method in C#? What is the difference between the Extension Method, Overloaded Method, and Overridden Method? Q105. What are Anonymous Types in C#? How it is different from dynamic types? Q106. What is the difference between dynamic and var type in C#? Q107. What is the difference between the “throw” and “throw ex” in .NET? Q108. What is finally block? How many finally blocks can you define with a try block? Q109. What will happen if the finally block throws an exception? Q110. What is the difference between the IS and AS Operators in C#?

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Q091. What are the different ways to handle the exceptions in C#? Can a try block exist without a catch block in C#? Q092. What is the difference between IEnumerable and IEnumerator in C#? Q093. What is the difference between IEnumerable and IQueryable in C#? Q094. What is the difference between IEnumerable, IList, and List in C#? Q095. What is the use of Params keyword in C#? Q096. What is the difference between Equality Operator "==" and .Equals() method comparison in C#? Q097. What is a private constructor? What is the use of a private constructor? Q098. What is a static constructor in C#? How can you call the static constructor? Q099. What is the Constructor Chaining in C#? How it is different from Constructor Overloading? Q100. Can you prevent a class from being instantiated? What are the different ways to do that?

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Q081. What is the difference between constant and readonly in C#? Q082. What is recursion? Which data structure is used by the recursion? Q083. What is a delegate in C#? Can you tell me some common delegates available in C#? Q084. What is the use of FUNC, PREDICATE, and ACTION delegates in C#? Q085. What are the generics in C#, and why they are required? How can you define a generic class and methods in C#? Q086. What is the difference between generic and non-generic collections? Or What is the difference between System.Collections and System.Collections.Generic namespaces? Q087. What is the difference between an Array and ArrayList in C#? Q088. What is the difference between the Array.CopyTo and Array.Clone? Q089. What is an indexer in C#? What is the difference between indexer and property? Q090. What is the difference between debug and release mode?

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Q071. What is the difference between Sealed Class and Static Class in C#? Q072. How a sealed class is different from a class having a private constructor in C#? Q073. What is a destructor? How does it affect the garbage collection process? When should we define destructor in C#? Q074. When the destructor is called? Can you pass parameters to destructors? How many destructors can be defined in a class? Q075. What is garbage collection in C#? What are the different generations of GC? Why different GC Generations Required? Q076. What is the difference between Destructor and Finalizer in C#? Q077. What is the difference between IDisposable and Finalizer? or What is the difference between dispose and finalize method in C#? Q078. Can a static class contain a destructor? Why? Q079. What is the purpose of using statement or using block in C#? or What is the using dispose pattern? Q080. What is the use of the Checked and UnChecked keywords in C#?

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Q061. What is the difference between boxing and unboxing in C#? Q062. What is the difference between boxing and conversion in C#? Q063. What is the difference between unboxing and casting? Q064. What is the difference between int.Parse(), int.TryParse() and Convert.ToInt32() methods? Q065. What is the difference between .ToString() and Convert.ToString() in C#? Q066. What is the difference between String.IsNullOrEmpty() and String.IsNullOrWhiteSpace() in C#? Q067. What is a sealed class in C#? Can you make the abstract class sealed? Q068. What is the sealed method in C#? How can you make any method sealed? Q069. What is the difference between the sealed method and the private method in C#? Q070. What is the difference between Sealed Class and Abstract Class in C#?

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Q051. What is the difference between value type and reference type? Q052. What is the difference between reference type and pass-by-reference? Q053. What is the difference between OUT and REF type parameters? Q054. Can you pass a constant as a reference? Why? Q055. If a method's return type is void, can you use a return statement in the method? What is the use of the return keyword? Q056. What is a recursive method? Can you tell me any available recursive method names in C#? Q057. In C# strings are the value type or reference type? How? Q058. Enums are value type or a reference type in C#? Q059. In C#, the structure is a value type or a reference type? Q060. What is the difference between casting and conversion in C#?