DOT NET Interview Questions - DotNetSpider

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There are two versions of Thread.Join :- √ √ Thread.join(). Thread.join(Integer) this returns a boolean value. The Thread.Join method is useful for determining if a thread has completed before starting another task. The Join method waits a specified amount of time for a thread to end. If the thread ends before the time-out, Join returns True; otherwise it returns False.Once you call Join the calling procedure stops and waits for the thread to signal that it is done. Example you have "Thread1" and "Thread2" and while executing 'Thread1" you call "Thread2.Join()".So "Thread1" will wait until "Thread2" has completed its execution and the again invoke "Thread1". Thread.Join(Integer) ensures that threads do not wait for a long time.If it exceeds a specific time which is provided in integer the waiting thread will start. (A)What are Daemon thread's and how can a thread be created as Daemon? Daemon thread's run in background and stop automatically when nothing is running program.Example of a Daemon thread is "Garbage collector".Garbage collector runs until some .<strong>NET</strong> code is running or else its idle. You can make a thread Daemon by Thread.Isbackground=true (A) When working with shared data in threading how do you implement synchronization ? There are a somethings you need to be careful with when using threads. If two threads (e.g. the main and any worker threads) try to access the same variable at the same time, you'll have a problem. This can be very difficult to debug because they may not always do it at exactly the same time. To avoid the problem, you can lock a variable before accessing it. However, if two threads lock the same variable at the same time, you'll have a deadlock problem. 56
SyncLock x 'Do something with x End SyncLock (I)Can we use events with threading ? Yes you can use events with threads , this is one of the technique to synchronize one thread with other. (A)How can we know a state of a thread? "ThreadState" property can be used to get detail of a thread.Thread can have one or combination of status.System.Threading.Threadstate enumeration has all the values to detect a state of thread.Some sample states are Isrunning,IsAlive,suspended etc. (A) What is use of Interlocked class ? Interlocked class provides methods by which you can achieve following functionalities :- √ √ √ √ increment Values. Decrement values. Exchange values between variables. Compare values from any thread. in a synchronization mode. Example :- System.Threading.Interlocked.Increment(IntA) (A) what is a monitor object? Monitor objects are used to ensure that a block of code runs without being interrupted by code running on other threads. In other words, code in other threads cannot run until code in the synchronized code block has finished. SyncLock and End SyncLock statements are provided in order to simplify access to monitor object. (A) what are wait handles ? 57
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Beta Release 1.0 DOT NET Interview
Page 3 and 4: How can we use COM Components in .N
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
Page 53: the .NET runtime determines that it
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
Page 63 and 64: Console.WriteLine(“Referenced the
Page 65 and 66: √ By Keyword “New”. (A) Are C
Page 67 and 68: When total object lifetime is reduc
Page 69 and 70: mode=”SingleCall” type=”Serve
Page 71 and 72: Non-Default constructors can not be
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
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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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