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Read books online » Education » .NET Framework Interview questions by Shivprasad Koirala (phonics reader txt) 📖

Book online «.NET Framework Interview questions by Shivprasad Koirala (phonics reader txt) 📖». Author Shivprasad Koirala



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of “Overrides” and “Overridable” keywords? (A)Where are all .NET Collection classes located?

 

What is ArrayList?

 

What is a HashTable?

 

What are queues and stacks?

 

What is ENUM?

 

What is nested Classes? What is Operator overloading in .NET? For the below code which constructor will fire first? What is the significance of Finalize method in .NET? How can we suppress a finalize method? What is the use of DISPOSE method?  How do I force the Dispose method to be called automatically, as clients can forget to call Dispose method? In what instances you will declare a constructor to be private?  Can we have different access modifiers on get/set methods of a property ?  If we write a goto or a return statement in try and catch block will the finally block execute?

 

 What is Indexer?  Can we have static indexer in C#? Can two catch blocks be executed?  What is the difference between System.String and System.StringBuilder classes? Chapter 7: ASP.NET  What’ is the sequence in which ASP.NET events are processed?

 

 In which event are the controls fully loaded?

 

How can we identify that the Page is Post Back?

 

 How does ASP.NET maintain state in between subsequent request?

 

 What is event bubbling?

 

 How do we assign page specific attributes?

 

 How do we ensure viewstate is not tampered?

 

 What is the use of @ Register directives?

 

 What is the use of Smart Navigation property?

 

 What is AppSetting Section in “Web.Config” file?

 

 Where is View State information stored?

 

 what is the use of @ Output Cache directive in ASP.NET.

 

 How can we create custom controls in ASP.NET?

 

 How many types of validation controls are provided by ASP.NET

 

Can you explain “AutoPostBack”?

 

 How can you enable automatic paging in Data Grid?

 

 What is the use of “GLOBAL.ASAX” file?

 

 What is the difference between “Web.config” and “Machine.Config”?

 

 What is a SESSION and APPLICATION object?

 

What is the difference between ‘Server.Transfer’ and ‘response. Redirect’ ?

 

What is the difference between Authentication and authorization?

 

 

what is impersonation in ASP.NET?

 

Can you explain in brief how the ASP.NET authentication process works?

 

What are the various ways of authentication techniques in ASP.NET? How does authorization work in ASP.NET?

 

 

What is difference between Data grid, Datalist, and repeater?

 

From performance point of view, how do they rate? What is the method to customize columns in Data Grid? How can we format data inside Data Grid? How to decide on the design consideration to take a Data grid, data list, or repeater?

 

 

Difference between ASP and ASP.NET?

 

What are major events in GLOBAL.ASAX file?

 

What order they are triggered?

 

 

Do session use cookies?

 

How can we force all the validation control to run?

 

 

How can we check if all the validation control are valid and proper?

 

If client side validation is enabled in your Web page, does that mean server side code is not run?

 

Which JavaScript file is referenced for validating the validators at the client side?

 

How to disable client side script in validators? How can I show the entire validation error message in a message box on the client side?

 

You find that one of your validations is very complicated and does not fit in any of the validators, what will you do?

 

 

What exactly happens when ASPX page is requested from a browser?

 

How can we kill a user session?

 

 How do you upload a file in ASP.NET?

 

 How do I send email message from ASP.NET? What are different IIS isolation levels?

 

ASP used STA threading model, what is the threading model used for ASP.NET. (A)What is the use of <%@ page aspcompat=true %> attribute?

 

 Explain the differences between Server-side and Client-side code?

 

Can you explain Forms authentication in detail? How do I sign out in forms authentication? If cookies are not enabled at browser end does form Authentication work? (A)How to use a checkbox in a data grid?

 

What are the steps to create a windows service in VB.NET?

 

What is the difference between “Web farms” and “Web garden”? How do we configure “Web Garden”?

 

What is the main difference between Grid layout and Flow Layout?

 

What’s the difference between trace and debug in ASP.NET?

 

How do you enable tracing in on an ASP.NET page?

 

Which namespace is needed to implement debug and trace ?

 

Can you explain the concept of trace listener?

 

What are trace switches? Chapter 8:  NET Architecture

 

 

 

 What are design patterns?

 

 What is the difference between Factory and Abstract Factory Patterns? What is MVC pattern? How can we implement singleton pattern in .NET? How do you implement prototype pattern in .NET?

 

What are the situations you will use a Web Service and Remoting in projects?

 

Can you give a practical implementation of FAÇADE patterns?

 

 How can we implement observer pattern in .NET? What is three-tier architecture?

 

Have you ever worked with Microsoft Application Blocks, if yes then which?

 

What is Service Oriented architecture?

 

What are different ways you can pass data between tiers? What is Windows DNA architecture? What is aspect oriented programming? Chapter 9: ADO.NET

 

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

 

Can you give an overview of ADO.NET architecture?

 

 What are the two fundamental objects in ADO.NET?  What is difference between dataset and data reader?  What are major difference between classic ADO and ADO.NET?

 

 What is the use of connection object?

 

 What is the use of command objects?

 

What is the use of data adapter? What are basic methods of Data adapter?  What is Dataset object?  What are the various objects in Dataset?

 

 How can we connect to Microsoft Access, FoxPro, and Oracle etc?  How do we connect to SQL SERVER, which namespace do we use?  How do we use stored procedure in ADO.NET and how do we provide parameters to the stored procedures? How can we force the connection object to close after my data reader is closed?  I want to force the data reader to return only schema of the data store rather than data.  How can we fine-tune the command object when we are expecting a single row?  Which is the best place to store connection string in .NET projects?  What are the steps involved to fill a dataset? What are the various methods provided by the dataset object to generate XML?  How can we save all data from dataset?  How can we check that some changes have been made to dataset since it was loaded?  How can we add/remove row is in “Data Table” object of “Dataset”?  What is basic use of “Data View”?  What is the difference between “Dataset” and “Data Reader” ?  How can we load multiple tables in a Dataset?  How can we add relation between tables in a Dataset?

 

 What is the use of Command Builder?

 

 What’s difference between “Optimistic” and “Pessimistic” locking ?

 

 How many ways are there to implement locking in ADO.NET? (A)How can we perform transactions in .NET?

 

 What is difference between Dataset? Clone and Dataset. Copy?  Can you explain the difference between an ADO.NET Dataset and an ADO Record set?

 

 Explain in detail the fundamental of connection pooling? What is Maximum Pool Size in ADO.NET Connection String? How to enable and disable connection pooling?

 

 What extra features does ADO.Net 2.0 have ? Chapter 10: SQL SERVER

 

 What is normalization? What are different types of normalization?

 

 What is denormalization?  What is a candidate key?

 

 What are the different types of joins? What is the difference between them?

 

What are indexes? What is the difference between clustered and nonclustered indexes? (A)How can you increase SQL performance?

 

What is the use of OLAP? (A)What is a measure in OLAP? (A)What are dimensions in OLAP? (A)What are levels in dimensions?

 

What are fact tables and dimension tables in OLAP? (A)What is DTS? What is fill factor ? What is RAID and how does it work?

 

What is the difference between DELETE TABLE and TRUNCATE TABLE commands?

 

If locking is not implemented, what issues can occur? (B)What are different transaction levels in SQL SERVER? What are the different locks in SQL SERVER? Can we suggest locking hints to SQL SERVER?  What is LOCK escalation? What are the different ways of moving data between databases in SQL Server?  What are advantages of SQL 2000 over SQl 7.0?  What is the difference between a HAVING CLAUSE and a WHERE CLAUSE?  What is the difference between UNION and UNION ALL SQL syntax?  How can you raise custom errors from stored procedure?  what is ACID fundamental? What are transactions in SQL SERVER?  What is DBCC?  What is the purpose of Replication?  What are the different types of replication supported by SQL SERVER? What is BCP utility in SQL SERVER? What are the different types of triggers in SQl SERVER? If we have multiple AFTER Triggers on table how can we define the sequence of the triggers? What is SQL injection?

 

What is the difference between Stored Procedure (SP) and User Defined Function (UDF)? Chapter 11: UML What is UML?  How many types of diagrams are there in UML?  What are advantages of using UML? What is the sequence of UML diagrams in project?

 

Give a small brief explanation of all Elements in activity diagrams? Explain Different elements of a collaboration diagram? Explain all parts of a deployment diagram?

 

 Describe the various components in sequence diagrams?

 

What
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