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October 28 2010 5 28 /10 /October /2010 16:36

Ado Dot Net Interview Question Part 1
Get Interview tutorials and videos on .NET 3.5, 4.0, Pessimistic, Optimistic, Locking, SQL Server, CAS, Security, WCF, SharePoint, Azure, OOPS and many more on www.questpond.com


(B) What is the namespace in which .NET has the data functionality class?

(B) Can you give an overview of ADO.NET architecture?

(B) What are the two fundamental objects in ADO.NET?

(B) What is difference between dataset and data reader?

(I) What are major difference between classic ADO and ADO.NET?

(B) What is the use of connection object?

(B) What is the use of command objects?

(B)What is the use of data adapter?

(B)What are basic methods of Data adapter?

(B) What is Dataset object?

(B) What are the various objects in Dataset?

(B) How can we connect to Microsoft Access, FoxPro, and Oracle etc?

(B) How do we connect to SQL SERVER, which namespace do we use?

Introduction

In this section we will touch base on one of important concepts in .Net Caching. You can download my .NET Interview Question PDF from http://www.questpond.com/SampleDotNetInterviewQuestionBook.zip .

I have also put all these design patterns in a video format and uploaded on http://www.questpond.com/FreeDesign1.htm . You can visit http://www.questpond.com and download the complete architecture interview questions PDF which covers SOA , UML , Design patterns , Togaf , OOPs etc.

Happy job hunting......

(B) What is the namespace in which .NET has the data functionality class?

Following are the namespaces provided by .NET for data management:-

 System. Data  


This contains the basic objects used for accessing and storing relational data, such as DataSet, DataTable, and Data Relation. Each of these is independent of the type of data source and the way we connect to it.


System.Data.OleDB



It contains the objects that we use to connect to a data source via an OLE-DB provider, such as OleDbConnection, OleDbCommand, etc. These objects inherit from the common base classes, and so have the same properties, methods, and events as the SqlClient equivalents.

System.Data.SqlClient:



This contains the objects that we use to connect to a data source via the Tabular Data Stream (TDS) interface of Microsoft SQL Server (only). This can generally provide better performance as it removes some of the intermediate layers required by an OLE-DB connection.

System.XML



This Contains the basic objects required to create, read, store, write, and manipulate XML documents according to W3C recommendations.

(B) Can you give an overview of ADO.NET architecture?


The most important section in ADO.NET architecture is “Data Provider”. Data Provider provides access to data source (SQL SERVER, ACCESS, ORACLE).In short it provides object to achieve functionalities like opening and closing connection, retrieve data, and update data. In the below figure, you can see the four main sections of a data provider:-

• Connection
• Command object (This is the responsible object to use stored procedures)
• Data Adapter (This object acts as a bridge between data store and dataset)
• Data reader (This object reads data from data store in forward only mode).
• Dataset object represents disconnected and cached data. If you see the diagram, it is not in direct connection with the data store (SQL SERVER,

ORACLE etc) rather it talks with Data adapter, who is responsible for filling the dataset. Dataset can have one or more Data table and relations.

Figure: - 9.1 ADO.NET Architecture


• Data View” object is used to sort and filter data in Data table.



Note:- This is one of the favorite questions in .NET. Just paste the picture in your mind and during interview try to refer that image.

(B) What are the two fundamental objects in ADO.NET?


Data reader and Dataset are the two fundamental objects in ADO.NET.


(B) What is difference between dataset and data reader?


Following are some major differences between dataset and data reader:-
• Data Reader provides forward-only and read-only access to data, while the Dataset object can hold more than one table (in other words more than one row set) from the same data source as well as the relationships between them.
• Dataset is a disconnected architecture while data reader is connected architecture.
• Dataset can persist contents while data reader cannot persist contents, they are forward only.


(I) What are major difference between classic ADO and ADO.NET?


Following are some major differences between both :-
• In ADO we have recordset and in ADO.NET we have dataset.• In recordset we can only have one table. If we want to accommodate more than one tables we need to do inner join and fill the recordset. Dataset can have multiple tables.
• All data persist in XML as compared to classic ADO where data persisted in Binary format also.

(B) What is the use of connection object?


They are used to connect a data to a Command object.
• An OleDbConnection object is used with an OLE-DB provider
• A SqlConnection object uses Tabular Data Services (TDS) with MS SQL Server

(B) What is the use of command objects?


They are used to connect connection object to Data reader or dataset. Following are the methods provided by command object:-

• ExecuteNonQuery: -

Executes the command defined in the Command Text property against the connection defined in the Connection property for a query that does not return any row (an UPDATE, DELETE, or INSERT). Returns an Integer indicating the number of rows affected by the query.

• ExecuteReader: -

Executes the command defined in the Command Text property against the connection defined in the Connection property. Returns a "reader" object that is connected to the resulting row set within the database, allowing the rows to be retrieved.

• ExecuteScalar: -

Executes the command defined in the Command Text property against the connection defined in the Connection property. Returns only single value (effectively the first column of the first row of the resulting row set any other returned columns and rows are discarded. It is fast and efficient when only a "singleton" value is required

(B)What is the use of data adapter?


These objects connect one or more Command objects to a Dataset object. They provide logic that would get data from the data store and populates the tables in the Dataset, or pushes the changes in the Dataset back into the data store.
• An OleDbDataAdapter object is used with an OLE-DB provider
• A SqlDataAdapter object uses Tabular Data Services with MS SQL Server.

(B)What are basic methods of Data adapter?


There are three most commonly used methods of Data adapter:-

Fill: -

Executes the Select Command to fill the Dataset object with data from the data source. It an also be used to update (refresh) an existing table in a Dataset with changes made to the data in the original data source if there is a primary key in the table in the Dataset.

FillSchema :-

Uses the SelectCommand to extract just the schema for a table from the data source, and creates an empty table in the DataSet object with all the corresponding constraints.Update:- Calls the respective InsertCommand, UpdateCommand, or DeleteCommand for each inserted, updated,or deleted row in the DataSet so as to update the original data source with the changes made to the content of the DataSet. This is a little like the UpdateBatch method provided by the ADO Recordset object, but in the DataSet it can be used to update more than one table.

(B) What is Dataset object?


The Dataset provides the basis for disconnected storage and manipulation of relational data. We fill it from a data store, work with it while disconnected from that data store, then reconnect and flush changes back to the data store if required.

(B) What are the various objects in Dataset?


Dataset has a collection of Data Table object within the Tables collection. Each Data Table object contains a collection of Data Row objects and a collection of Data Column objects. There are also collections for the primary keys, constraints, and default values used in this table, which is called as constraint collection, and the parent and child relationships between the tables. Finally, there is a Default View object for each table. This is used to create a Data View object based on the table, so that the data can be searched, filtered, or otherwise manipulated while displaying the data.

Note: - Look back again to the main diagram for ADO.NET architecture for visualizing this answer in pictorial form.

(B) How can we connect to Microsoft Access, FoxPro, and Oracle etc?


Microsoft provides System.Data.OleDb namespace to communicate with databases like success , Oracle etc. In short, any OLE DB-Compliant database can be connected using System.Data.OldDb namespace.

Note :- Small sample of OLEDB is provided in “WindowsAppOleDb” which uses “Nwind.mdb” in bin directory to display data in Listbox.


Private Sub loadData()
Dim strPath As String
strPath = AppDomain.CurrentDomain.BaseDirectory
Dim objOLEDBCon As New OleDbConnection(“Provider=Microsoft.Jet.OLEDB.4.0;Data Source =” & strPath & “Nwind.mdb”)
Dim objOLEDBCommand As OleDbCommand
Dim objOLEDBReader As OleDbDataReader
Try

objOLEDBCommand = New OleDbCommand(“Select FirstName from Employees”)
objOLEDBCon.Open()
objOLEDBCommand.Connection = objOLEDBCon

objOLEDBReader = objOLEDBCommand.ExecuteReader()
Do While objOLEDBReader.Read()
lstNorthwinds.Items.Add(objOLEDBReader.GetString(0))
Loop
Catch ex As Exception
Throw ex
Finally
objOLEDBCon.Close()
End Try

End Sub



The main heart is the “Load data ()” method which actually loads the data in list box.

Note:- This source code has the connectionstring hard coded in the program itself which is not a good programming practice. For windows application the best place to store connectionstring is “App.config”. Also note that “AppDomain.CurrentDomain.BaseDirectory” function gives the current path of the running exe which is “BIN” and the MDB file is in that directory. Also note that the final block which executes irrespective that there is error or not. Thus ensuring that all the connection to the datastore is freed. Its best practice to put all clean up statements in finally block thus ensuring that the resources are deallocated properly.

(B) How do we connect to SQL SERVER, which namespace do we use?


Below is the code, after the code we will try to understand the same in a more detailed manner. For this sample, we will also need a SQL Table setup, which I have imported, using the DTS wizard.

Private Sub LoadData()
‘ note :- with and end with makes your code more readable
Dim strConnectionString As String
Dim objConnection As New SqlConnection
Dim objCommand As New SqlCommand
Dim objReader As SqlDataReader
Try
‘ this gets the connectionstring from the app.config file.
‘ note if this gives error see where the MDB file is stored in your pc and point to thastrConnectionString = AppSettings.Item(“ConnectionString”)
‘ take the connectiostring and initialize the connection object
With objConnection
.ConnectionString = strConnectionString
.Open()
End With
objCommand = New SqlCommand(“Select FirstName from Employees”)
With objCommand
.Connection = objConnection
objReader = .ExecuteReader()
End With
‘ looping through the reader to fill the list box
Do While objReader.Read()
lstData.Items.Add(objReader.Item(“FirstName”))
Loop
Catch ex As Exception
Throw ex
Finally
objConnection.Close()
End Try


<appSettings>
<add key=”Connectionstring” value=”Server=ERMBOM1-IT2;User ID=sa;Database=Employees”/>
</appSettings>

Note:- The above code is provided in CD in folder WindowsAppSqlClient”. Comments in the code do explain a lot but we will again iterate through the whole code later. “LoadData” is the main method which loads the data from SQL SERVER. Before running this code you have to install SQL SERVER in your machine. As we are dealing with SQLCLIENT we need to setup database in SQL SERVER. For this sample I have imported access “Nwind.mdb” in “SampleAccessDatabase” folder in CD in to SQlSERVER. Depending on computer you will also have to change the connectionstring in Web.config file.

For setting up the sample SQL table, we can use the DTS import wizard to import the table. See the below figure which is using data source as Microsoft Access. While importing the database author had, give the database name as “Employees”.

Figure: - 9.2 Loading “Nwind.mdb” in SQL SERVER for the sample

Figure :- 9.3 Load only the Employee table.

To make it simple we will only import the employee table as that is the only thing needed in our sample code.

Figure: - 9.4 View of loaded Employee table



Now from interview point of view definitely you are not going to say the whole source code, which is given in the book. Interviewer expects only the broader answer of what are the steps needed to connect to SQL SERVER. For fundamental sake author has explained the whole source code. In short, you have to explain the “Load Data” method in broader way. Following are the steps to connect to SQL SERVER:-

• First imports the namespace “System.Data.SqlClient”.
• Create a connection object as shown in “Load Data” method.

With objConnection
.Connection String = strConnectionString
.Open ()
End With


• Create the command object with the SQL. Also, assign the created connection object to command object and execute the reader.
ObjCommand = New SqlCommand (“Select First Name from Employees”)

With objCommand
.Connection = objConnection
Breeder = .Execute Reader ()
End With

• Finally loop through the reader and fill the list box. If old VB programmers are expecting the move next command it is replaced by Read () which returns true if there is any data to be read. If the .Read () return is false that means that it’s end of data reader and there is no more data to be read.



Do while objReader.Read ()
lstData.Items.Add (objReader.Item (“First Name”))
Loop

• Do not forget to close the connection object.

Note:- In “LoadData” you will see that connectionstring is stored in Web.config file and is loaded using “AppSettings.Item(“ConnectionString”)”. While running this sample live on your database do not forget to change this connectionstring accordingly to your machine name and SQL SERVER or else the source code will not run.

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Dependency injection (DI) VS Inversion of Control (IOC)

.NET interview questions with answers: - What is the difference between Reflection and Dynamic?

Five Great .NET Framework 4.5 Features

ASP.NET MVC 4 interview questions with answers: - What is the use of “AllowHTML” and “ValidateInput” attributes?

.NET interview questions 6th edition (Sixth edition) - By Shivprasad Koirala

.NET interview questions with answers: – Can we use events without delegates ?

.Net Interview question Edition 6 is available now.

.NET interview questions with answers: – What’s the difference between catch with parameter and catch without parameter?

.NET interview questions : - What is the use and difference between “IS” and “AS” keyword?

.NET interview questions with answers: - Build solution VS Rebuild solution VS Clean solution

HTML 5 interview questions with answers for LocalStorage and SessionStorage

.NET 4.0 interview questions with answers: – What are code contracts?

What are portable class libraries? ( .NET interview questions with answers)

How to loop through ENUM using C# (.NET interview questions with answers)?

What are transactions in C#? (.NET interview questions with answers)

What are ACID Properties( .NET Interview questions with answers)?

.NET interview questions: – What are the areas that need to be concentrated for senior(9+ years experience)persons in .NET technologies?

.NET interview questions: - Explain real time scenarios in Factory Pattern, Abstract Pattern, Singleton, WCF and REST services

What is the difference between IS A and Can a Relationship?( .NET Interview questions with answers)

What is the use of ENUM Flags(.NET Enum Interview question 2)?

What is the difference between .Net,C#, Asp.net, Asp.net Web Forms and Asp.net MVC and MVC?( C# and ASP.NET Interview questions)

ADO.NET interview questions: - Explain in detail the fundamental of connection pooling?

.NET interview questions: – Can you explain generics in .NET?

What are Properties and methods ? ( .NET OOP Interview questions with answers)

What’s the first step you take for implementing any of Design Pattern?( .NET  Design pattern interview questions with answers)

.NET interview questions: - What are different types of JIT?

ADO.NET Interview Question: - What are the major differences between classic ADO and ADO.NET?

.NET interview questions: – What is the difference between Reflection and Dynamic?

What is the Use of interfaces?( .NET Interview questions with answers)

.NET interview questions: - What role did you play in your project and company?

Visual studio 2012 Fakes

.NET interview questions: - So how can we clean unmanaged objects and also maintain performance?

ADO.NET Interview Questions: - What are basic methods of Data adapter?

.NET interview questions: - What are system level exceptions and application level exceptions?

.NET interview questions: - What is UML and which are the important diagrams?

.NET interview questions: - What is time out support in regex (regular expression)?

.NET interview questions: - How can we improve performance of .NET?

.NET interview questions: - Can you explain the concept of “Short Circuiting”?

.NET interview questions: - Can you explain Forms authentication in detail?

What is the difference between VAR and Dynamic keyword? ( .NET Interview questions with answers)

.NET interview questions: - What are similarities and difference between Class and structure?

Can you compare String.IsNullOrEmpty vs String.IsNullOrWhiteSpace ? ( .Net Interview questions with answers)

.NET interview questions: - Distinguish between Reflection and Dynamic?

.NET interview questions: - In which scenarios we can use serialization and when to use what binary serialization or XML serialization?

.NET interview questions: - Are there any readymade objects in .NET by which we can implement Lazy loading?

.NET interview questions: - What are different access modifiers?

ADO.NET interview questions: - Explain in detail the fundamental of connection pooling how to enable and disable connection pooling?

ADO.NET interview questions: - What is the namespace in which .NET has the data functionality class?

ADO.NET interview questions: - What are the different components in ADO.NET?

ADO.NET interview questions: - Show difference between “Optimistic” and “Pessimistic” locking and how many ways are there to implement optimistic locking in ADO.NET?

.NET interview questions: - Does code contract only do dynamic checks?

ADO.NET interview questions: - How can we fire a simple SQL Statement using ADO.NET?

.NET interview questions: - What basic steps are needed to display a simple report in crystal?

ADO.NET interview questions: - What are basic methods of Data adapter and mention the use of data adapter?

.NET interview questions: - What is UML? How many types of diagrams are there in UML?

.Net Interview Questions - What is MVC, MVP and MVVM pattern?

.NET interview questions: - How can you define a property read only for external world and writable in the same assembly?

Explain the implicit and explicit conversion of data types with examples?( .NET interview questions on data type)

.NET interview questions: - What is Reflection its implementation and practical uses?

What is downcasting and upcasting? (.NET interview questions with answers)

.NET interview questions: - How to decide on the design consideration to take a Data grid, data list or repeater?

.NET interview questions: - If we want to update interface with new methods, what is the best practice?

.NET interview questions: - How does selection sort algorithm works?

XML(.NET) interview questions: - What is XML?

.NET Interview questions: - If a validation is very complex what will you do?

.NET interview questions: - How can we stop the class from further inheriting?

XML (.NET) Interview questions :- Explain simple Walk through of XmlReader.

.NET interview questions : - How can we improve performance of .NET and show the difference between .NET 1.X, 2.0, 3.0, 3.5 and 4.0?

How to convert string to ENUM value ?( .NET interview questions with answers)

.NET architecture interview questions series: - What is mean by modeling language?

.NET architecture interview questions : - What are benefits and Limitation of using Viewstate, hidden frames and Cookies?

.NET interview questions: - What is GAC (Global Assembly Cache)?

.NET interview questions: - Explain Nuget?

.NET Testing interview questions: - What is the difference between Unit testing, Assembly testing and Regression testing?


.NET interview questions: - What is Code Access Security (CAS) and how does it work? Is CAS supported in .NET 4.0?


.NET interview questions: - What are the advantages /disadvantages of lazy loading?


.NET interview questions: - What is the use of DEBUG directive?


.NET testing interview questions: - What is Mock testing and how to implement it?


.NET interview questions: - What is the difference between DEBUG and Release?


.NET testing interview questions: - How can we UNIT test private methods using VSTS? Is it good to practice to UNIT test Private methods?


Explain 3 layer architecture ( .NET Interview questions)?


.NET interview questions : - What is a delegate and how can we create a delegate? What is a multicast delegate?


ADO.NET interview questions: - How to add/remove row is in “Data Table” object of “Dataset”? How to load multiple tables in a Dataset & adding relation between tables in a Dataset?


What is the difference between Array, ArrayList and List?( .Net Interview questions)

.NET interview questions: - How to implement DTC in .NET?
.NET interview questions: - What is an Interface and what are abstract classes

.NET interview questions: - Interface vs. abstract class

.NET interview questions: - How to implement practically Lazy loading in .NET?


.NET interview questions: - How can we handle exceptions in .NET? What if we do not catch the exception?

.NET interview questions based on Projects.


.NET interview questions: - What is shadowing? What is the difference between Shadowing and Overriding?

.NET interview questions: - All about Design Patterns in .NET


.NET interview questions: - How can we improve performance of .NET/ASP.NET/SQL Server?

.NET interview questions: - What benefits does sealed keyword provide?


.NET Architecture UML interview question


.NET interview questions: - How to maintain performance and can clean unmanaged objects?


.NET interview questions: - Explain ENUM and its benefits? What is the use of Flagsin ENUM?

.NET interview questions: - How to create a windows service using .NET?

.NET interview questions: - Explain in details about Indexer and can we have static indexer in C#?

.NET interview questions: - What is the difference between arraylist and list? Are Arraylist faster or Arrays?

.NET interview questions: - What is Native Image Generator (Ngen.exe)? Does NGEN.EXE always improve performance?

.NET OOPS interview questions: - What is OOP? What are different properties provided by Object-oriented systems?

.NET OOPS interview questions: - How abstract with only abstract method is it different from interfaces? Also mention best practice to update interface with new methods?

.NET interview questions: - What is the difference between delegate and events? Can we have return type, access modifiers and shared events?

.NET interview questions: - What is Manifest? Where is the version information stored of an assembly? Is versioning applicable to private assemblies?

.NET Generics interview questions: - Explain Generics and concept of Generic Collection in .NET?

How to learn .NET: - In parent-child relationship which constructor will fire first and in which instances you will declare a constructor private?

Basics of .NET and learning tutorials on CTS and CLS


Online resource to learn .NET on Reflection and Dynamic

Online guide to learn .NET for Object initializer in C#?

QuestPond for Freshers on IL code, JIT, CLR, CTS, CLS and CAS

QuestPond: Interview Questions and Answers on AJAX and how does it help?



ASP.NET Interview Questions & Answers Article










MVC Interview Questions And Answers Article

 

(MODEL VIEW CONTROLLER)MVC INTERVIEW QUESTIONS AND ANSWERS

 

MVC INTERVIEW QUESTIONS WITH ANSWERS VIDEO: – WHAT IS WEB API HOW TO IMPLEMENT THE SAME?

 

ASP.NET MVC  4 INTERVIEW QUESTIONS WITH ANSWERS: - WHAT IS BUNDLING AND MINIFICATION IN MODEL VIEW CONTROLLER ?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS :- IS IT POSSIBLE TO RETURN VALUES INSTEAD OF ACTIONRESULTS?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS :- WHAT ARE THE ACTIONRESULTS AVAILABLE IN MVC?

 

MVC INTERVIEW QUESTIONS WITH ANSWERS:-HTML.PARTIALVSHTML.RENDERPARTIALVSHTML.RENDERPAGE IN MVC

MVC VS ASP.NET ( MVC INTERVIEW QUESTION WITH ANSWERS )?

 

HOW CAN WE DETECT THAT A MVC CONTROLLER IS CALLED BY POST OR GET ? ( ASP.NET MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

WHAT ARE THE DIFFERENT WAYS BY WHICH YOU WILL GET FORM DATA IN CONTROLLER? ( MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

WHAT IS THE DIFFERENCE BETWEEN PRESENTER AND CONTROLLER IN MVC?(MVC INTERVIEW QUESTIONS WITH ANSWERS)

 

LEARN MVC (MODEL VIEW CONTROLLER) STEP BY STEP IN 7 DAYS – DAY 4

 

MVC Interview questions and answers PDF

 

MVC interview questions with answers

 

ActionResult vs. View() vs. ViewResult :- MVC interview questions with answers

Explain Areas in MVC?( MVC interview questions with answers)

 

Can you explain the purpose of ViewModel in MVC?( ASP.NET MVC Interview questions with answers)

ASP.NET MVC interview questions: - What are Filters in MVC?

What are areas in MVC?( MVC Interview questions with answers)

Explain the concept of View Model in MVC? 

Exception Handling in MVC

Explain MVC application life cycle?

100 MVC Interview question PDF download released , Enjoy

How can we use two (multiple) models with a single view?(MVC Interview questions)

MVC HTML.Form vs Ajax.Form – MVC interview questions with answers

Learn Microsoft Business intelligence step by step – Day 1

Can you create TempBag just like ViewBag?( MVC Interview questions)

MVC Unit Testing Unleashed

MVC and .NET learning tutorials for components of MVC and how do you perform unit testing in MVC?

Explain MVC model binders ? ( ASP.NET MVC interview questions)

Explain the difference between layout and master pages ? (MVC Razor interview questions) 


ENTITY FRAMEWORK INTERVIEW QUESTIONS ARTICLE


Windows Workflow Foundation(WWF) interview questions with answers Article

XML Interview Questions With Answers Article


Explain XML,DTD and XSL?(XML interview questions with answers)

HTML 5 Interview questions With Answers Article

HTML 5 interview questions with answers for LocalStorage and SessionStorage

 

How is the page structure of HTML 5 different from HTML 4?( HTML 5 Interview questions with answers)

 

What is datalist in HTML 5 ( ASP.NET HTML interview questions)?

 

What are the different new form element types in HTML 5?( ASP.NET HTML 5 interview questions with answers)

 

What is output element in HTML 5?( ASP.NET HTML 5 interview questions)

 

What is the difference between Canvas and SVG graphics?(ASP.NET HTML 5 interview questions with answers)

 

ASP.NET HTML 5 interview questions on SVG and Canvas

ASP.NET HTML5 interview questions with answers

What are web workers and why do we need them ?( ASP.NET HTML interview questions with answers)

 

Why do we need HTML 5 server-sent events? (ASP.NET HTML interview questions)

How can we add and remove data from local storage?(ASP.NET HTML 5 interview questions)

What is local storage concept in HTML 5? ( ASP.NET HTML 5 interview questions)

What is the difference between local storage and cookies? ( ASP.NET HTML 5 interview questions)

What is WebSQL?( ASP.Net HTML 5 interview questions)

 

What is session storage and how can you create one?( ASP.Net HTML 5 interview questions with answers)

 

What is application cache in HTML5?( ASP.NET HTML 5 interview questions with answers)

ASP.NET HTML 5 Application cache interview questions with answers

 

Explain the term cascading in style sheet ? ( CSS Interview questions)

What is difference between DIV vs SPAN in HTML ?( ASP.Net Interview questions)

HTML 5 Canvas Interview questions: - Canvas in HTML 5.

QuestPond’s interview questions and answers on HTML 5

 

Learn HTML 5 in 3 days – Day 1

 

 

 

Dotnetspider Questions And Answers Article

 

 

What is downcasting and upcasting ? ( .NET interview questions with videos)

 

What is the difference between String vs string? ( C# interview questions) ?

 

 

JAVASCRIPT INTERVIEW QUESTIONS WITH ANSWERS ARTICLE

 


3 IMPORTANT JAVASCRIPT IMPORTANT INTERVIEW QUESTION WITH ANSWERS