.Net Interview Questions and answers pdf

You can download latest .Net Interview Questions & answers pdf 2015 from here...

What is namespace?

Namespace is a logical container for all types i.e class, enum, struct, interface etc..
Namespace is used in two scenarios:
1. to overcome the naming collision
2. to group related items together

What is Reflection in .NET?

Reflection is the feature in .Net, which enables us to get some information about object in runtime. That information contains data of the class. Also it can get the names of the methods that are inside the class and constructors of that object.

Explain unit test done by tester on development team?

Yes, Ideal practice is, the basic unit test should be written by the developer. Further in scenario vice test cases and more complext test cases must be written by WBT (White box testing) team.

What is .net framwork?

FRAMEWORK : it is a collection of all the tools and utilities required to execute the .net managed application on particular platform.

What is CLR? How does work CLR & wht is work of CLR?

CLR- common language runtime.. clr in .net is equivalent to jvm in java. garbage collection,sode access security, code verification, intermediate language are work sof clr.. it uses jit to compile intermediate language code to machine code.

Where The Inheritence is useful? How we decide the situation of inheritence?

Mostly inheritance requires in large classes where every time searching and writing of same data is impossible. That case requires us to define some inherited functions methods n classes.Whenver they required they simply inherited from inheritance class where they are already defined along with their functionality to handling some other data pieces.

Who handles these error while writing the source code?

Suppose i am writing code in .net e.g
int i=10 then .net show me red line under the code where error occurs.we know the i have not apply semicolon at the end of syntax(int i=10;)

Can we change web.config settings from iis?

Yes authority and authentication settings of the application can be changed with iis. plus we can also change the connection property and start page setting from iis.

What happened when type url in address bar and press enter?

the url is break into four parts(i.e. ip addresses)first is protocol in use,2nd host name or ip addr,3rd protocol port no.,4th actual file path

How to Insert a TextBox value in to Sql database using C#.Net coding?

assign the textbox valuu to a string than using sqlcommand in c# writing insert querry . insert the value into the database.
ex; sqlcommand cmd=new sqlcommand("insert into emp values
('"+textbox1.text+"'),con");
cmd.executenonquerry();

What is shadowing?

shadowing in general is when two variables/methods or any other element has same name and any one of the both can shadow( in OOP case override) the behavior of other.

How to update one of my table in database at 4pm every day how it is possible?

if your application is in run under the server system then take the server time,that time is equal to 4pm then write the update query of the selected table and field.

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