What are the Differences between Server.Transfer and Response.Redirect ?

Difference between Server.Transfer and Response.Redirect

Sno	Server.Transfer	Response.Redirect
1	The navigation happens on the server-side ,so client history is not updated	The navigation happens on the client-side ,so client history is  updated
2	Data can be persist accros the pages using Context.Item collection	Context.Items loses the persisitance.
3	No Round-trips	Makes a Round-trip
4	Has Good encapsulation	No

What are the differences between value and reference types

Sno	Value Types	Reference Types
1	They contain their data directly	They store a reference to their value’s memory
2	They are allocated for storage either in stack or inline in structure..	They are allocated for storage in heap
3	can be built-in (implemented by the runtime), user-defined, or enumerations	self-describing types, pointer types, or interface types.

What are the differences between machine.config and web.config files?

Sno	Web.config	Machine.config
1	It is a config file for a single application.	It is a config file which is common for all the applications in a machine
2	It will be available in the application folder.	It is available in the Microsoft.NET\Framework\{version}\CONFIG Folder.
3	The settings in the web.config overrides that of Machine.config	Cant do.
4	Automatically installed when visual studio .net is installed	This is automatically created when you create an asp.ne website

What are the differences between Trace and Debug?

Sno	Trace	Debug
1	Works in both Debug and Release mode	Works only in Debug mode.
2	Trace is enabled by default in visual studio	Debug is not enabled. You can manually do that.

What is the difference between a custom control and a user control ?

Sno	User Control	Custom Control
1	Is a file with the .ascx extension	Is a file with the .dll extension
2	Can be only used with the application	Can be used in any number of applications
3	Language dependent.	They are language independent, a control created in c# can be used in vb.net
4	Can’t be added to Visual studio Toolbox	Can be added to Visual studio Toolbox
5	Inherits from Server controls and easy to create.	You have to develop from scratch , so comparatively difficult.
6	Generally used for static content	Used when dynamic content is required

What is the difference between CCW and RCW ?

Sno	CCW	RCW
1	COM to .NET communication happens through COM Callable Wrapper	.NET to COM Communication happens through Remote Callable Wrappter

What is Serialization ? What are the Types of Serialization and their differences?

Serialization:
It is the process of converting an object to a form suitable for either making it persistent or tranportable.
Deserialization is the reverse of this and it converts the object from the serialized state to its original state.

Types:
1. Binary
2. XML

Differences:

Sno	Binary	XML
1	It preserves type fidelity , which is useful for preserving the state of the object between transportation and invocation.	It doesnt preserves type fidelity and hence state cant be maintained.
2	As it is the open standard its widely used	Not that much compared to Binary.

Differences between Dataset and DataReader

Sno	Dataset	DataReader
1	Disconnected Mode	Connected Mode
2	Can navigate back and forth	Can navigate forward only
3	Data is editable	Data is Readonly
4	Can contain more than one table and relationships	Can contain only one row at a time.
5	Slower as having more overhead	Faster when compared with dataset.

What are the differences between value and reference types

Sno	Value Types	Reference Types
1	They contain their data directly	They store a reference to their value’s memory
2	They are allocated for storage either in stack or inline in structure..	They are allocated for storage in heap
3	can be built-in (implemented by the runtime), user-defined, or enumerations	self-describing types, pointer types, or interface types.