DOT NET Interview Questions - DotNetSpider

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what is ManualResetEvent and AutoResetEvent ?........................................................................... 58 What is ReaderWriter Locks ? ............................................................................................................ 58 How can you avoid deadlock in threading ? ...................................................................................... 59 What’s difference between thread and process? ................................................................................. 59 4. Remoting and Webservices .................................................... 60 What is a application domain? ........................................................................................................... 60 What is .NET Remoting ?................................................................................................................... 60 Which class does the remote object has to inherit ? ........................................................................... 61 What are two different types of remote object creation mode in .NET ? ........................................... 61 Describe in detail Basic of SAO architecture of Remoting? .............................................................. 61 What are the situations you will use singleton architecture in remoting ? ........................................ 66 What is fundamental of published or precreated objects in Remoting ? ............................................ 66 What are the ways client can create object on server in CAO model ? ............................................. 66 Are CAO stateful in nature ? .............................................................................................................. 67 In CAO model when we want client objects to be created by “NEW” keyword is there any precautions to be taken ? ......................................................................................................................... 67 Is it a good design practice to distribute the implementation to Remoting Client ? .......................... 68 What is LeaseTime,SponsorshipTime ,RenewonCallTime and LeaseManagerPollTime? ............... 68 Which config file has all the supported channels/protocol ?.............................................................. 69 How can you specify remoting parameters using Config files ? ........................................................ 70 Can Non-Default constructors be used with Single Call SAO? ......................................................... 72 Twist :- What are the limitation of constructors for Single call SAO ? ............................................. 72 How can we call methods in remoting Asynchronously ? ................................................................. 73 What is Asynchronous One-Way Calls ? ............................................................................................ 73 What is marshalling and what are different kinds of marshalling ? ................................................... 73 What is ObjRef object in remoting ? .................................................................................................. 74 What is a WebService ? ...................................................................................................................... 74 What is UDDI ? .................................................................................................................................. 75 What is DISCO ? ................................................................................................................................ 75 What is WSDL? .................................................................................................................................. 75 What the different phase/steps of acquiring a proxy object in Webservice ? ..................................... 75 What is file extension of Webservices ? ............................................................................................. 76 Which attribute is used in order that the method can be used as WebService ?................................. 77 What are the steps to create a webservice and consume it ? .............................................................. 77 Do webservice have state ?................................................................................................................. 86 5. Caching Concepts ................................................................... 88 What is application object ? ............................................................................................................... 88 What’s the difference between Cache object and application object ? ............................................. 88 How can get access to cache object ? ................................................................................................. 88 What are dependencies in cache and types of dependencies ? ........................................................... 88
Can you show a simple code showing file dependency in cache ? .................................................... 89 What is Cache Callback in Cache ?.................................................................................................... 89 What is scavenging ? .......................................................................................................................... 90 What are different types of caching using cache object of ASP.NET?............................................... 90 How can you cache different version of same page using ASP.NET cache object ? ......................... 90 How will implement Page Fragment Caching ? ................................................................................. 91 What are ASP.NET session and compare ASP.NET session with classic ASP session variables?.. 91 Which various modes of storing ASP.NET session ? ......................................................................... 91 Is Session_End event supported in all session modes ? ..................................................................... 92 What are the precautions you will take in order that StateServer Mode work properly ? ................. 92 What are the precautions you will take in order that SQLSERVER Mode work properly ? ............. 92 Where do you specify session state mode in ASP.NET ? ................................................................... 93 What are the other ways you can maintain state ?.............................................................................. 93 What are benefits and Limitation of using Hidden fields ? ................................................................ 93 What is ViewState ? ............................................................................................................................ 94 Do performance vary for viewstate according to User controls ? ...................................................... 94 What are benefits and Limitation of using Viewstate for state management? ................................... 94 How an you use Hidden frames to cache client data ? ....................................................................... 95 What are benefits and Limitation of using Hidden frames? ............................................................... 95 What are benefits and Limitation of using Cookies? ......................................................................... 96 What is Query String and What are benefits and Limitation of using Query Strings? ...................... 96 6. OOPS ....................................................................................... 98 What is Object Oriented Programming ? ........................................................................................... 98 What’s a Class ?.................................................................................................................................. 98 What’s a Object ?................................................................................................................................ 98 What’s the relation between Classes and Objects ? ........................................................................... 98 What are different properties provided by Object-oriented systems ? ............................................... 98 Twist :- Can you explain different properties of Object Oriented Systems? ...................................... 98 Note:- Difference between abstraction and encapsulation is one of the favorite interview question and quiet confusing as both the terminology look alike.Best is if you can brainstorm with your friends or do a little reading. ........................................................................................................ 98 Twist :- What’s difference between Association , Aggregation and Inheritance relationships?......... 99 How can we acheive inheritance in VB.NET ? ................................................................................ 100 What are abstract classes ? ............................................................................................................... 101 What’s a Interface ? .......................................................................................................................... 103 What is difference between abstract classes and interfaces?............................................................ 105 What is a delegate ? .......................................................................................................................... 105 What are event’s ? ............................................................................................................................ 106 Do events have return type ? ............................................................................................................ 108 Can event’s have access modifiers ? ................................................................................................ 108 Can we have shared events ? ............................................................................................................ 108 What is shadowing ? ......................................................................................................................... 108 What’s difference between Shadowing and Overriding ? ................................................................ 109 What’s difference between delegate and events? ............................................................................. 109
Page 1 and 2: Beta Release 1.0 DOT NET Interview
Page 3: How can we use COM Components in .N
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
Page 53 and 54: 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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DOT NET Interview Questions - DotNetSpider

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