DOT NET Interview Questions - DotNetSpider

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4. Remoting and Webservices (B)What is a application domain? Previously “PROCESS” where used as security boundaries.One process has its own virtual memory and does not over lap the other process virtual memory , due to this one process can not crash the other process.So any problem or error in one process does not affect the other process.In .NET they went one step ahead introducing application domains.In application domains multiple application can run in same process with out influencing each other.If one of the application domains throws error it does not affect the other application domains.To invoke method in a object running in different application domain .NET remoting is used. Figure :- 4.1 One process can have multiple Application domains (B) What is .NET Remoting ? .NET remoting is replacement of DCOM.Using .NET remoting you can make remote object calls which lie in different Application Domains.As the remote objects run in different process client calling the remote object can not call it directly.So the client uses a proxy which looks like a real object. When client wants to make method call on the remote object it uses proxy for it.These method calls are called as “Messages”.Messages are serialized using “formatter” class and sent to client “channel”.Client Channel communicates with Server Channel.Server Channel uses as formatter to deserialize the message and sends to the remote object. 60
Figure :- 4.2 Channels,Formatters and Proxy in action. (B) Which class does the remote object has to inherit ? All remote object should inherit from System.MarshalbyRefObject. (I) What are two different types of remote object creation mode in .NET ? There are two different ways in which object can be created using Remoting :- √ √ SAO (Server Activated Objects) also called as Well-Known call mode. CAO (Client Activated Objects) SAO has two modes “Single Call” and “Singleton”.With Single Call object the object is created with every method call thus making the object stateless.With Singleton the object is created only once and the object is shared with all clients. CAO are stateful as compared to SAO. In CAO the creation request is sent from client side.Client holds a proxy to the server object created on server. (A) Describe in detail Basic of SAO architecture of Remoting? For these type of questions interviewer expects small and sweet answers.He is basically looking at what you know about the specific subject.For these type of question this book will provide detail code which is not necessary to be said during interview.Only the basic steps and overall brief are enough to convince that you have knowledge about the subject.Even though this question has detail code and answer say only what is needed in interview. 61
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Beta Release 1.0 DOT NET Interview
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How can we use COM Components in .N
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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
Page 53 and 54: the .NET runtime determines that it
Page 55 and 56: SyncLock x 'Do something with x End
Page 57: (I) How can you avoid deadlock in t
Page 61 and 62: Implements InterFaceRemoting.InterF
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Page 65 and 66: √ By Keyword “New”. (A) Are C
Page 67 and 68: When total object lifetime is reduc
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Page 73 and 74: (B) What is UDDI ? Full form of UDD
Page 75 and 76: Figure :- 4.8 Create Web project me
Page 77 and 78: Figure :- 4.9 Create WebService Pro
Page 79 and 80: Figure :- 4.11 Click on Add Web Ref
Page 81 and 82: Figure :- 4.13 Solution showing the
Page 83 and 84: √ Finally you are able to see you
Page 85 and 86: Webservices as such do not have any
Page 87 and 88: (P)Can you show a simple code showi
Page 89 and 90: √ √ VaryByCustom:-Lets you cust
Page 91 and 92: √ By default Session objects are
Page 93 and 94: √ View state is good for caching
Page 95 and 96: √ All browsers support query stri
Page 97 and 98: Abstraction It allows complex real
Page 99 and 100: Public Class ClsChild Inherits ClsP
Page 101 and 102: Public Class ClsChild Inherits ClsA
Page 103 and 104: (A) What is difference between abst
Page 105 and 106: Public Class FrmWithEvents Inherits
Page 107 and 108: 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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