DOT NET Interview Questions - DotNetSpider

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(I) Is it a good design practice to distribute the implementation to Remoting Client ? It’s never advisable to distribute complete implementation at client , due to following reasons :- √ √ Any one can use ILDASM and decrypt your logic. It’s a bad architecture move to have full implementation as client side as any changes in implementation on server side you have to redistribute it again. So the best way is to have a interface or SOAPSUDS generated meta-data DLL at client side rather than having full implementation. (A) What is LeaseTime,SponsorshipTime ,RenewonCallTime and LeaseManagerPollTime? This is a very important question from practical implementation point of view.Companies who have specific requirement for Remoting project’s will expect this question to be answered. In normal .NET environment objects lifetime is managed by garbage collector.But in remoting environment remote clients can access objects which is out of control of garbage collector.Garbage collector boundary is limited to a single PC on which framework is running , any remote client across physical PC is out of control of GC (Garbage Collector). This constraint of garbage collector leads to a new way of handling lifetime for remoting objects , by using concept called as “LeaseTime”.Every server side object is assigned by default a “LeaseTime” of five minutes.This leasetime is decreased at certain intervals.Again for every method call a default of two minutes is assigned.When i say method call means every call made from client.This is called as “RenewalOnCallTime”. Let’s put the whole thing in equation to make the concept more clear. Total Remoting object life time = LeaseTime + (Number of method calls) X (RenewalTime). If we take NumberOfMethodCalls as one. Then default Remote Object Life Time = 5 + (1) X 2 = 10 minutes (Everything is in minutes) 68
When total object lifetime is reduced to zero , it queries the sponsor that should the object be destroyed.Sponsor is a object which decides should object Lifetime be renewed.So it queries any registered sponsors with the object , if does not find any then the object is marked for garbage collection.After this garbage collection has whole control on the object lifetime.If we do not foresee how long a object will be needed specify the “SponsorShipTimeOut” value. SponsorShipTimeOut is time unit a call to a sponsor is timed out. “LeaseManagerPollTime” defines the time the sponsor has to return a leasetime extension. (A) Which config file has all the supported channels/protocol ? Machine.config file has all the supported channels and formatter supported by .NET remoting.Machine.config file can be found at “C:\WINDOWS\Microsoft.NET\Framework\vXXXXX\CONFIG” path.Find element in the Machine.config file which has the channels and the formatters.Below is a figure shown which can give a clear idea of how the file looks like. Note :- Interviewer will not ask you to name all channels and formatters in machine.config but will definitely like to know in which file are all the formatter and channels specified one sweet answer “Machine.config” can fetch you handsome job. 69
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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
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What’s the use of @ Register dire
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I want to force the datareader to r
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Who is a stakeholder ? ............
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√ √ √ .NET interviewers who a
Page 15 and 16: Note While reading you can come acr
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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 and 58: (I) How can you avoid deadlock in t
Page 59 and 60: Figure :- 4.2 Channels,Formatters a
Page 61 and 62: Implements InterFaceRemoting.InterF
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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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Page 111 and 112: Figure :- 6.7 Shared/Static In Acti
Page 113 and 114: It provides a way to define and use
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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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