Tech Beginners

What is Interitance ? Why multiple inheritance not supported in C#?

What is Polymorphism ? What is Function Overloading ? What is Function Overriding ?

What is Encapsulation ?                Encapsulation is the process of hiding the data. It focus on implementation of an object.  Difference between abstraction and encapsulation ?               Abstraction allows making relevant information visible and encapsulation provides implementing desired level of abstraction.

What is an Abstract Class ?                Abstract class in C# is a class that having the keyword as abstract and this class may have abstract methods. It is a mechanism to show only relevant data. Is Abstract class can be instantiated ?                No, Abstract class cannot be instantiated. Whether abstract class can be derived ?    Yes Abstract class be derived and all the abstract class should be defined in the derived class. Write the syntax for abstract class.       abstract class ClassName { // to do ; class definition } Can we do abstract method in an abstract class ?    Yes, We can add abstract method in the abstract class.

1. What is C# ? 2. Questions on abstraction ? 3. Questions on encapsulation ? 4. Question on polymorphism ? 5. Questions on Inheritance ? 6. Difference between struct and class ? 7. Difference between abstract class & Interface ? 8. what is enum in c# ? 9. Difference between continue and break ? 10. Difference between cosntant and read only ? 11. 

1. What is JIT ? 2. What is CLR ? 3. What all are the languages supported by .net framework ? 4. Usage of Garbage Collector ? 5. String is mutable or Immutable ? Justify 6.  Overridable keyword used in ? 7. What Managed Code ? 8. What is Unmanaged Code ? 9.What is Boxing & Unboxing ? 10. 

WCF

1. In following choice which one has disconnected nature ? DataSet , DataReader 2. What is connection pooling ? 3. 

1. In which event IsPostBack Property checked? 2. What all are the Page Events Present in ASP.NET Life Cycle? 3. What is View State ? 4. Whether View State is Client Side State Management or Server Side State Management ? 5. What is Query String ? 6. How to enable Application Level Tracing in ASP.NET ? 7. Difference between Authentication & Authorization? 8. What is HTTP Handler ? 9. Extension for master page in ASP.NET? 10. In which format Web.config values are stored? 11. What does .aspx.cs mean? 12. How many cookies can we use for single web application ? 13. 

In which event IsPostBack property checked ? Ans : PreInit.  Explanation :  In this event IsPostBack property validated. If it is true, then value are restored in controls from the ViewState. If it is false, then value are overwritten by next event. Also in this PreInit, It will create dynamic controls. It sets Master Page dynamically & theme property.