DOT NET Interview Questions - DotNetSpider

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The Table of contents is different from what is available in traditional books.So that rather than reading through the whole book just look at what questions you feel uncomfortable and revise that. Contents Beta Release 1.0............................................................................. 3 Introduction................................................................................. 14 Software Company hierarchy ............................................................................................................. 17 1. Basic .NET Framework .......................................................... 20 What is a IL? ...................................................................................................................................... 20 Twist :- What is MSIL or CIL , What is JIT? ..................................................................................... 20 What is a CLR? .................................................................................................................................. 20 What is a CTS? ................................................................................................................................... 20 What is a CLS(Common Language Specification)?........................................................................... 21 What is a Managed Code? .................................................................................................................. 21 What is a Assembly ? ........................................................................................................................ 21 What are different types of Assembly?............................................................................................... 22 What is NameSpace? .......................................................................................................................... 22 What is Difference between NameSpace and Assembly? .................................................................. 22 If you want to view a Assembly how to you go about it ? ................................................................. 22 Twist : What is ILDASM ? .................................................................................................................. 22 What is Manifest? ............................................................................................................................... 25 Where is version information stored of a assembly ?......................................................................... 26 Is versioning applicable to private assemblies? ................................................................................. 26 What is GAC ?.................................................................................................................................... 26 Twist :- What are situations when you register .NET assembly in GAC ? ......................................... 26 What is concept of strong names ? ..................................................................................................... 26 Twist :- How do we generate strong names or what is the process of generating strong names , What is use of SN.EXE , How do we apply strong names to assembly ? , How do you sign an assembly ? .................................................................................................................................................... 26 How to add and remove a assembly from GAC? ............................................................................... 30 What is Delay signing ? ...................................................................................................................... 31 What is garbage collection?................................................................................................................ 32 Can we force garbage collector to run ? ............................................................................................. 32 What is reflection? .............................................................................................................................. 32 What are different type of JIT ?.......................................................................................................... 33 What are Value types and Reference types ? ...................................................................................... 34 What is concept of Boxing and Unboxing ? ....................................................................................... 34 What’s difference between VB.NET and C# ? ................................................................................... 35 What’s difference between System exceptions and Application exceptions? .................................... 35 What is CODE Access security? ........................................................................................................ 36 What is a satellite assembly? .............................................................................................................. 37 2..NET Interoperability .............................................................. 38
How can we use COM Components in .NET? ................................................................................. 38 Twist : What is RCW ? ........................................................................................................................ 38 Once i have developed the COM wrapper do i have to still register the COM in registry? .............. 39 How can we use .NET components in COM? .................................................................................... 39 Twist :- What is CCW (COM callable wrapper) ?, What caution needs to be taken in order that .NET components is compatible with COM ? ........................................................................................ 39 How can we make Windows API calls in .NET? ............................................................................... 42 When we use windows API in .NET is it managed or unmanaged code ? ......................................... 44 What is COM ? ................................................................................................................................... 44 What is Reference counting in COM ?............................................................................................... 44 Can you describe IUKNOWN interface in short ? ............................................................................. 44 Can you explain what is DCOM ?...................................................................................................... 45 How do we create DCOM object in VB6? ......................................................................................... 46 How to implement DTC in .NET ?..................................................................................................... 46 How many types of Transactions are there in COM + .NET ?.......................................................... 48 How do you do object pooling in .NET ? ........................................................................................... 49 What are types of compatibility in VB6? ........................................................................................... 50 What is equivalent for regsvr32 exe in .NET ? .................................................................................. 51 3. Threading ................................................................................ 52 What is Multi-tasking ? ...................................................................................................................... 52 What is Multi-threading ? ................................................................................................................... 52 What is a Thread ? .............................................................................................................................. 52 Did VB6 support multi-threading ? .................................................................................................... 52 Can we have multiple threads in one App domain ? .......................................................................... 52 Which namespace has threading ? ...................................................................................................... 52 Can you explain in brief how can we implement threading ? ............................................................ 52 How can we change priority and what the levels of priority are provided by .NET ? ....................... 53 What does Addressof operator do in background ? ............................................................................ 54 How can you reference current thread of the method ?...................................................................... 54 What's Thread.Sleep() in threading ? ................................................................................................. 54 How can we make a thread sleep for infinite period ? ....................................................................... 54 What is Suspend and Resume in Threading ? .................................................................................... 54 What the way to stop a long running thread ? .................................................................................... 55 How do i debug thread ? ..................................................................................................................... 55 What's Thread.Join() in threading ?.................................................................................................... 55 What are Daemon thread's and how can a thread be created as Daemon? ......................................... 56 When working with shared data in threading how do you implement synchronization ? ................. 56 Can we use events with threading ? ................................................................................................... 57 How can we know a state of a thread? ............................................................................................... 57 what is a monitor object? .................................................................................................................... 57 what are wait handles ?....................................................................................................................... 57 Twist :- What is a mutex object ?........................................................................................................ 58
Page 1: Beta Release 1.0 DOT NET Interview
Page 5 and 6: Can you show a simple code showing
Page 7 and 8: What’s the use of @ Register dire
Page 9 and 10: I want to force the datareader to r
Page 11 and 12: Who is a stakeholder ? ............
Page 13 and 14: √ √ √ .NET interviewers who a
Page 15 and 16: Note While reading you can come acr
Page 17 and 18: √ Project Manager are expected to
Page 19 and 20: Microsoft introduced Common Type Sy
Page 21 and 22: Visual Studio .NET 2003\SDK\v1.1\Bi
Page 23 and 24: (A) What is Manifest? Figure :- 1.2
Page 25 and 26: √ Go to “Visual Studio Command
Page 27 and 28: Figure:- 1.7 Click on project and t
Page 29 and 30: (B) What is Delay signing ? During
Page 31 and 32: Note :- Sample source code are comp
Page 33 and 34: (B) What’s difference between VB.
Page 35 and 36: (I)What is a satellite assembly? In
Page 37 and 38: √ √ √ Using Type library impo
Page 39 and 40: √ The second way to create CCW us
Page 41 and 42: √ Type is the return type of the
Page 43 and 44: pDesired) checks to see if the curr
Page 45 and 46: √ √ Figure :- 2.3 Add reference
Page 47 and 48: There are 5 transactions types that
Page 49 and 50: Binary Compatibility VB makes it po
Page 51 and 52: Private Sub Form1_Load(ByVal sender
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the .NET runtime determines that it
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SyncLock x 'Do something with x End
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(I) How can you avoid deadlock in t
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Figure :- 4.2 Channels,Formatters a
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Implements InterFaceRemoting.InterF
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Console.WriteLine(“Referenced the
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√ By Keyword “New”. (A) Are C
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When total object lifetime is reduc
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mode=”SingleCall” type=”Serve
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Non-Default constructors can not be
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(B) What is UDDI ? Full form of UDD
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Figure :- 4.8 Create Web project me
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Figure :- 4.9 Create WebService Pro
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Figure :- 4.11 Click on Add Web Ref
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Figure :- 4.13 Solution showing the
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√ Finally you are able to see you
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Webservices as such do not have any
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(P)Can you show a simple code showi
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√ √ VaryByCustom:-Lets you cust
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√ By default Session objects are
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√ View state is good for caching
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√ All browsers support query stri
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Abstraction It allows complex real
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Public Class ClsChild Inherits ClsP
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Public Class ClsChild Inherits ClsA
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(A) What is difference between abst
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Public Class FrmWithEvents Inherits
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Figure :- 6.6 Shadowing in Action (
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(I) Why can not you specify accessi
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Figure :- 6.7 Shared/Static In Acti
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It provides a way to define and use
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Figure :- 6.8 Garbage collection in
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instance and be used with out creat
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(B) How do we assign page specific
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CustomValidator Used to define User
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can say the following authenticatio
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Digest authentication requires that
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With this setting, all the requests
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√ ASP.NET supports full language
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Application_PreSendContent: Fired b
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WebUIValidation.js javascript file
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√ √ √ .ashx, for custom ASP.N
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The above mapping shows which funct
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(I)How do you upload a file in ASP.
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Figure: - 7.5 High isolation scenar
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√ Remove anonymous access to the
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(I)What are the steps to create a w
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8..NET Architecture (B) What are de
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The below two class diagrams will p
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(I)What’s MVC pattern? Twist: - H
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√ First create your class with st
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√ √ Payment Invoicing All the f
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interfaces of these components. SOA
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web service. Both these services ar
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(A)What is aspect oriented programm
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encapsulation. In short the class n
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Public Property UserName() As Strin
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pstrCustcode = Value End Set End Pr
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End Property Public Property NewVal
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9. ADO.NET (B)What is the namespace
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“DataView” object is used to so
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made to the data in the original da
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First below is the code , after the
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Figure :- 9.3 Load only the Employe
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objCommand = New SqlCommand(“Sele
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Config files are the best place to
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Dataset has “AcceptChanges” met
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Delete Deletes the specified row fr
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preferred way of locking practicall
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10. SQL SERVER (B) What is normaliz
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Figure :- 10.4 City is now shifted
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(I)What are indexes and What is the
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(A)What are fact tables and dimensi
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(B)What are the problems that can o
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REPEATABLE READ This setting disall
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prudent to do so is another story;
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UNION SQL syntax is used to select
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(I) What is ACID fundamental and wh
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Figure :- 10.6 DBCC SHOWCONTIG comm
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BCP (Bulk Copy Program) is a comman
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√ AFTER triggers AFTER triggers e
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(B) What is UML? 11. UML The Unifie
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high level, what components form pa
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This should be compulsory diagram a
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Figure :-11.1 Phase mapping with UM
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√ √ √ Object satisfies a cond
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2-Element Constraint: - It shows a
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(A) Explain all parts of a deployme
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(A) Describe various components in
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(A) What are the element in State C
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(A)Describe different elements in S
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Trace: - Indicates historical relat
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Extends: - Indicates that the eleme
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(B) Who is a stakeholder ? Figure :
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writing a book i will have followin
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software development model you will
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Incremental Model In this model we
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√ √ √ Function points Use Cas
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Twist :- What is 80/20 principle ?
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workflow metrics √ walkthrough me
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√ revisions metrics version contr
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√ 13. Free exams (Thanks to www.m
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