Dotnet basics

Dot Net - .Net Basic , Framework and Advanced
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1 . What is .NET?1
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2 . When was .NET announced? 1
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3 . What versions of .NET are there? 1
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4 . What operating systems does the .NET Framework run on?1
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5 . What tools can I use to develop .NET applicatio ns?1
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6 . Why did they call it .NET?i
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7 . What is the CLI? Is it the same as the CLR? i
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8 . What is IL?i
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9 . What is C#?i
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10 . What does 'managed' mean in the .NET context? i
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11 . What is an assembly? i
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12 . How can I produce an assembly? i
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public class CTest
{

public CTest() { System.Console.WriteLine( "Hell o from CTest" ); }
}

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13 . What is the difference between a private assem bly and a shared
assembly?i
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14 . How do assemblies find each other? i
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15 . How does assembly versioning work? i
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16 . How can I develop an application that automati cally updates itself from
the web?1
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17 . What is an application domain? 1
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18 . Can I write my own .NET host? 1
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19 . What is garbage collection? 1
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20 . Is it true that objects don't always get destr oyed immediately when the
last reference goes away? 1
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21 . Why doesn't the .NET runtime offer determinist ic destruction?1
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22 . Is the lack of deterministic destruction in .NET a problem?i
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23 . Should I implement Finalize on my class? Shoul d I implement
IDisposable?i
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25 . How can I find out what the garbage collector is doing?i
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26 . What is the lapsed listener problem? i

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27 . What is serialization?1
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28 . Does the .NET Framework have in-built support for serialization?1
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29 . I want to serialize instances of my class. Sho uld I use XmlSerializer,
SoapFormatter or BinaryFormatter? 1
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30 . Can I customise the serialization process? 1
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31 . Why is XmlSerializer so slow? i
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32 . Why do I get errors when I try to serialize a Hashtable?i
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33 . XmlSerializer is throwing a generic "There was an error reflecting
MyClass" error. How do I find out what the problem is?i
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34 . What are attributes?i
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35 . What is Code Access Security (CAS)? i
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36 . How does CAS work? i
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37 . I'm having some trouble with CAS. How can I tr oubleshoot the problem? i
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38 . I can't be bothered with CAS. Can I turn it of f?1
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39 . Can I look at the IL for an assembly? 1
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40 . Can source code be reverse-engineered from IL? 1
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41 . How can I stop my code being reverse-engineere d from IL?1
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42 . Can I write IL programs directly? 1
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43 . Can I do things in IL that I can't do in C#?1
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44 . Does .NET replace COM? 1
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http://discuss.develop.com/archives/wa.exe?A2=ind00 07&L=DOTNET&D=0&P=68241 1
http://discuss.develop.com/archives/wa.exe?A2=ind00 07&L=DOTNET&P=R60761 1
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45 . Is DCOM dead? 1
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46 . Is COM+ dead? 1
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lF’ 1
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http://discuss.develop.com/archives/wa.exe?A2=ind00 07&L=DOTNET&P=R68370 1
47 . Can I use COM components from .NET programs? 1
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48 . Can I use .NET components from COM programs? 1
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49 . Is ATL redundant in the .NET world? 1
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50 . How do I spawn a thread? 1
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51 . How do I stop a thread? 1
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52 . How do I use the thread pool? 1
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1111*1
53 . How do I know when my thread pool work item ha s completed?1
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54 . Should I use ReaderWriterLock instead of Monit or.Enter/Exit?1
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55 . Tracing . Is there built-in support for tracing/logging?1
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56 . Can I redirect tracing to a file?1
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57 . Can I customise the trace output? 1
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58 . Are there any third party logging components a vailable?1
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59 . Miscellaneous . How does .NET remoting work? 1
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60 . How can I get at the W in32 API from a .NET program? 1
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62 . What is the difference between an event and a delegate?1
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63 . What size is a .NET object?1
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64 . Will my .NET app run on 64-bit Windows? 1
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http://msdn.microsoft.com/netframework/programming/ 64bit/gettingstarted/1
65 . What is reflection?1
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Dot Net - Asp.Net

1 . Describe the role of inetinfo.exe, aspnet_isapi .dll
andaspnet_wp.exe in the page loading process.
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2 . What’s the difference between Response.Write()
andResponse.Output.Write()?
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3 . What methods are fired during the page load?
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4 . When during the page processing cycle is ViewSt ate

available?1
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5 . What namespace does the Web page belong in the .NET
Framework class hierarchy? 1
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6 . Where do you store the information about the us er’s
locale?1
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7 . What’s the difference between
Codebehind="MyCode .aspx.cs" andSrc="MyCode.aspx.cs"? 1
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8 . What’s a bubbled event? 1
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9 . Suppose you want a certain ASP.NET function exe cuted on
MouseOver for a certain button. Where do you add an event
handler?1
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btnSubmit.Attributes.Add("onmouseover","someClientC odeHere();");1
10 . What data types do the RangeValidator control support?1
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11 . Explain the differences between Server-side an d Client-
side code?1
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12 . What type of code (server or client) is found in a Code-
Behind class?1
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13 . Should user input data validation occur server -side or
client-side? Why?1
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14 . What is the difference between Server.Transfer and

Response.Redirect? Why would I choose one over the other?1
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15 . Can you explain the difference between
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?wwet1uw1vw3N1ugTwnsg1ugN1diui 1
]11_wn1piE1tuwTN1viEL1Ndaut1aE1i1xiuiHNur1iEd1cTauN1ugNv1uw1ugN1
wTasaEi?1diui1twnTpN1aE1i1taEs?N1weNTiuawE 1
]11hgwnsg1ugN1xiuiHNu1at1nEa3NTti?r1wugNT1w8JNput1aE14xb .Wh1pwvN1
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1
16 . What is the Global.asax used for? 1
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17 . What are the Application_Start and Session_Sta rt
subroutines used for?1
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4ee?apiuawE1iEd1HNttawE1w8JNput 1
18 . Can you explain what inheritance is and an exa mple of
when you might use it? 1
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19 . Whats an assembly? 1
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20 . Describe the difference between inline and cod e behind.1
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21 . Explain what a diffgram is, and a good use for one?1

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diui8itN1diui1uw1iE1SzF1oa?N1uw18N1tNEu1uw1i10N81HNT3apN 1
22 . Whats MSIL, and why should my developers need an
appreciation of it if at all?1
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23 . Which method do you invoke on the DataAdapter control
to load your generated dataset with data? 1
hgN1'a??yk1vNugwd 1
24 . Can you edit data in the Repeater control? 1
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25 . Which template must you provide, in order to d isplay
data in a Repeater control?1
muNvhNve?iuN 1
26 . How can you provide an alternating color schem e in a
Repeater control?1
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27 . What property must you set, and what method mu st you
call in your code, in order to bind the data from a data source
to the Repeater control?1
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28 . What base class do all Web Forms inherit from? 1
hgN1jisN1p?itt 1
29 . Name two properties common in every validation
control?1
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30 . Which property on a Combo Box do you set with a col umn
name, prior to setting the DataSource, to display d ata in the
combo box?1
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31 . Which control would you use if you needed to m ake sure
the values in two different controls matched? 1
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32 . How many classes can a single .NET DLL contain ?1
mu1piE1pwEuiaE1viEL1p?ittNt 1
1
1
1

Web Service Questions i
33 . What is the transport protocol you use to call a Web
service?i
0/C1iE0nQybci/)BchWiChhctti1sgWghgbAintiWPciyscxcsscSiysgWghgbmi
34 . What does WSDL stand for? i
,c)i0csvnhcti.cthsnyWngdiTadofaocmi
35 . Where on the Internet would you look for Web s ervices?i
http://www.uddi.org i
36 . True or False: To test a Web service you must create a
Windows application or Web application to consume t his
service?i
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Oee1r*leiQcWPgSiWgiWctWmi
37 . Can you give an example of when it would be appropr iate
to use a web service as opposed to a non-serviced . NET
componenti
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tcsvcstiascisfddndoigdiSnxxcscdWidcW gs5tiadSiabtgiSnxxcscdWi
ybaWxgsQtmiePntiysgvnSctiaibggtcb'ihgfybcSit'tWcQmiCdSiabtginxiWPci
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nWisfdtigdiygsWiA7iE)'iScxafbWAindtWcaSigxiPavndoitgQciWPndoicbtcindi
0/Ciayyti
i
State Management Questions i
i
38 . What is ViewState?i
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ndiaiPnSScdixncbSigdiWPciyaocmii$nc 0WaWcintiWsadtygsWcSiWgiWPcihbncdWi
adSi)ah5iWgiWPcitcsvcsuiadSintidgWitWgscSigdiWPcitcsvcsigsiad'igWPcsi
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tnScig)BchWti)cW ccdiygtWa)ah5tmi
39 . What is the lifespan for items stored in ViewS tate?i
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40 . What does the "EnableViewState" property do? W hy
would I want it on or off?i
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$nc 0WaWcui PnhPintitWgscSiatiaiPnSScdivabfcigdiWPciyaoci)cxgsci
tcdSndoiWPciyaociWgiWPcihbncdWti)sg tcsmii,PcdiWPciyaocintiygtWcSi
)ah5iWgiWPcitcsvcsiWPcitcsvcsihgdWsgbintischscaWcSi nWPiWPcitWaWci
tWgscSindivnc tWaWcmi

41 . What are the different types of Session state
management options available with ASP.NET? 1
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twnTpN 11hgN1NRuNTEi?1diui1twnTpN1viL18N1NaugNT1i1HWF1HNT3NT1wT1i1
HuiuN1HNT3NT1tNT3apN 11bnu2wo2jTwpNtt1tuiuN1viEisNvNEu1TNqnaTNt1
ugiu1i??1w8JNput1tuwTNd1aE1tNttawE1iTN1tNTai?a%i8?N 1
42 . Let's say I have an existing application writt en using
Visual Studio 6 (VB 6, InterDev 6) and this application utilizes
Windows 2000 COM+ transaction services. How would y ou
approach migrating this application to .NET 1
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43 . Can you give an example of what might be best suited to
place in the Application_Start and Session_Start su broutines?1
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owT1NRive?N1ntNT1ad1wT1ntNT1EivN 1
44 . If I'm developing an application that must acc omodate
multiple security levels though secure login and my ASP.NET
web appplication is spanned across three web-server s (using
round-robbin load balancing) what would be the best
approach to maintain login-in state for the users? 1
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45 . What are ASP.NET Web Forms? How is this techno logy
different than what is available though ASP (1.0-3. 0)?1
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8itat 1
46 . How does VB.NET/C# achieve polymorphism? 1
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47 . Describe session handling in a webform, how do es it
work and what are the its limits 1
1
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tpgNvi1wT1ntaEs1xiui8itN1caug1LwnT1wcE11
tpgNvi1dNoaENd1uw1giEd?N1ugN1tNttawEt 1
48 . How would you get ASP.NET running in Apache we b
servers - why would you even do this? 1
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wE1uwe1wo14eipgN 11
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i??wc1vwTN1Env8NT1wo1cN81tauN1wcENTt11
uw1ui-N1id3iEuisN1wo14Hj .Wh1iEd1aut1TapgENtt 1
49 . Whats MSIL, and why should my developers need an
appreciation of it if at all?1
1
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zapTwtwouDt1ave?NvNEuiuawE1wo1lmF1ytuiEdiTd1TNpwsEa%Nd11

8L1Wlz41iEd1mHbk1it1eiTu1wo1lFm1iEd1lI1HuiEdiTda%iuawE 11
1
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pwdNr1tw1Lwn1pwn?d1datittNv8?N1LwnT1pwvea?N1ittNv8?L1ntaEs1
mFx4Hz1iEd1ucNi-1LwnT1pwdN1iEd1TN1ittNv8?N1au1ntaEs 1mF4Hz 1
50 . In what order do the events of an ASPX page ex ecute. As
a developer is it important to undertsand these eve nts?1
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R 1jisN<xatewtN11
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1
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1
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51 . Which method do you invoke on the DataAdapter control
to load your generated dataset with data? 1
'a??yk1
52 . Can you edit data in the Repeater control? 1
.w 1bE?L1xiuiFatu1iEd1xiui9Tad1eTw3adN1Lwn1NdauaEs1capabilities.1
53 . What method do you use to explicitly kill a us er s
session?1
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54 . How do you turn off cookies for one page in yo ur site?1
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.NNd1uw1dw1onTugNT1TNtNiTpg1wE1ugat 1
55 . Which two properties are on every validation c ontrol?1
hgN1pwvvwE1eTweNTuaNt1iTNQ11

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3 1hNRu1ytuTaEsk11
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56 . What tags do you need to add within the asp:da tagrid
tags to bind columns manually? 1
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57 . How do you create a permanent cookie? 1
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Lwn1ENNd1uw1gi3N1eNTviENEu1wT1eNTtatuiEu1pww-aN 11
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lww-aNlwEuiaENT1uw1i1ENc?L1pTNiuNd1lww-aNlwEuiaENTr1iEd1ugN11
aut1pww-aN1uw1i1tNttawE13i?nN1iEd1ugNE1tuwTN1ugN1pww-aNytk1aEuw1ugN1
HNT3apN1lww-aNlw??NpuawE1oTwv1ugiu1pww-aN1pwEuiaENT11
ao1twvNugaEs1at1ugNTN1wugNTN1catN1idd1pww-aN1uw1ugN1pwEuiaENT 1
58 . What tag do you use to add a hyperlink column to the
DataGrid?1
5LeNTFaE-lw?nvE1
59 . What is the standard you use to wrap up a call to a Web
service1
Hb4j 1
60 . Which method do you use to redirect the user t o another
page without performing a round trip to the client? 1
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61 . What does WSDL stand for? 1
0N81HNT3apNt1xNtpTaeuawE1FiEsnisN 1
62 . True or False: A Web service can only be writt en in .NET1
'i?tN 1
63 . What property do you have to set to tell the g rid which
page to go to when using the Pager object? 1
lnTTNEujisNmEdNR 1_wn1ENNd1uw1tNu1ugat1wEN1caug1ugN1
xiui9TadjisNlgiEsNdW3NEu4TstD1.NcjisNmEdNR 1
64 . Which control would you use if you needed to m ake sure
the values in two different controls matched? 1
#tN1lwveiTN6i?adiuwT1
65 . True or False: To test a Web service you must create a
windows application or Web application to consume t his
service?1

'i?tN 1hgN1cN8tNT3apN1pwvNt1caug1i1uNtu1eisN1iEd1au1eTw3adNt1
5hhj29Wh1vNugwd1uw1uNtu 11
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66 . How many classes can a single .NET DLL contain ?
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67 . Why would you use an array vs linked-list ?
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Dot Net - Asp.Net - Basic I
1
1 . What is ASP.NET?1
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2 . Why does my ASP.NET file have multiple tag with runat=server?1
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3 . How to find out what version of ASP.NET I am us ing on my machine? 1
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4 . Is it possible to pass a querystring from an .a sp page to aspx page? 1
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5 . How to comment out ASP.NET Tags? 1
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6 . What is a ViewState?1

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7 . Where can I get the details on Migration of exi sting projects using various
technologies to ASP.NET? 1
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8 . What is the equivalent of date() and time() in ASP.NET?1
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9 . How to prevent a button from validating it's fo rm?1
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10 . How to get the IP address of the host accessin g my site?1
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11 . How to access the Parameters passed in via the URL?1
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12 . How to display a Wait page while a query is ru nning?1
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13 . How to implement Form based Authentication in ASP.NET application? 1
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· VB.NET1
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14 . How to catch the 404 error in my web applicati on and provide more useful
information?1
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15 . Is there a method similar to Response.Redirect that will send variables to the
destination page other than using a query string or the post method?1
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16 . What are the differences between HTML versus S erver Control?1
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17 . How can I change the action of a form through code?1
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18 . Is there any control that allows user to selec t a time from a clock - in other
words is there a clock control?1
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19 . How to Compare time? 1
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20 . How To work with TimeSpan Class? 1
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21 . Where can I get information on Cookies in ASP. NET?1
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22 . Does ASP.Net still recognize the global.asa fi le?1
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23 . How should I destroy my objects in ASP.Net? 1
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24 . Are there resources online with tips on ASP to ASP.Net conversions? 1
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25 . How do I publish my ASP.NET application to my ISP's web server?1
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26 . Why do i get error message "Could not load typ e" whenever I browse to my
ASP.NET web site? 1
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27 . Will the WebMatrix SqlDataSourceControl work w ith a MySQL connection? 1
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28 . Can I combine classic ASP and ASP.NET pages? 1
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29 . What is the difference between src and Code-Be hind?1
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lwdN7NgaEd1iuuTa8nuN1dwNtEDu1TNi??L1=dw=1iELugaEsr1aut1Jntu1i1gN?eNT1owT16H .Wh1uw1
ittwpaiuN1ugN1pwdN1oa?N1caug1ugN1iteR1oa?N 1hgat1at1ENpNttiTL1taEpN16H .Wh1inuwviuNt1ugN1
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i?ciLt1dNpwvea?i8?N1N3NE1ugNE 1
30 . How can I get the value of input box with type hidden in code-behind? 1
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lwEuTw?.ivN 6i?nN1uw1sNu1aut13i?nN1aE1lwdN7NgaEd1oa?N1

31 . I have created a .NET user control page (.ascx ) but I cannot compile and run
it.1
#tNT1pwEuTw?1yitpRk1piEDu18N1TnE1wE1au1wcEr18nu1Lwn1piE1dTis1au1wEuw1iEL1cN81eisN1
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32 . What is a .resx file?1
hgN1 TNtR1TNtwnTpN1oa?N1owTviu1pwEtatut1wo1SzF1NEuTaNtr1cgapg1teNpaoL1w8JNput1iEd1
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33 . Is it possible to use a style sheet class directly on a control instead of using
inline or page-level formatting ?1
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owTviu1uw1i1tuL?N1tgNNu 1
34 . Can I recieve both HTML markup for page and co de in the ASP.NET web
page's source code portion in the Web browser? 1
.w 1hgN10N818TwctNT1TNpaN3Nt1wE?L15hzF1viT-ne 1
.w1twnTpN1pwdN1wT1cN81pwEuTw?1tLEuiR1at1eittNd18ip-1uw1ugN1cN818TwctNT 1
35 . Why can't I put where at the top of an ASPX fi le and write my server-side
scripts in C ?1
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i1 .Wh1pwvea?NT 1
36 . ASP pages that worked pefectly on Windows 2000 Server and IIS 5.0 do not
work on Windows 2003 Server with IIS 6.0. ASP.NET p ages work fine. Why? 1
HuiTu12\1HNuuaEst12\1lwEuTw?1jiEN?12\14dvaEatuTiua3N1hww?t12\1iEd1dwn8?N1p?ap-aEs1mmH1
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8nuuwE1wE1ugN1?Nou1
37 . Why do I get error message "Error creating ass embly manifest: Error reading
key file 'key.snk' -- The system cannot find the fi le specified"?1
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eiug1wT1i1TN?iua3N1eiug 1
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1
38 . How to get URL without querystring? 1
67 .Wh1
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tuTaEs1qnNTL1V1cN8nTa WnNTLV1

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39 . What is the best way to output only time and n ot Date?1
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40 . Do I have to compile code if I am changing the content of my aspx.cs file?1
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41 . How to grab the referring URL? 1
67 .Wh1
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42 . My ASP code gives an error "Compiler Error Mes sage: BC30289: Statement
cannot appear within a method body. End of method a ssumed" when changed to
.aspx?1
#tN1i1[tpTaeu1TnEiuVtNT3NT\18?wp-1aEtuNid1wo1ugN1[_1_\1tLEuiR1uw1dNoaEN1Hn8t 1
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43 . How can I save images ? 1
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44 . How can I logout when using FormsAuthenticatio n?1
'wTvt4nugNEuapiuawE HasEbnuyk1
1
45 . Why do I get a blank page when I use Server.Tr ansfer("page1.htm") to
transfer to a different page?1
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46 . How to detect the User's culture? 1
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47 . What is the difference between CurrentCulture property and the
CurrentUICulture property?
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48 . Can I read the hard disk serial # of the client computer using ASP.NET?
.w 1Hnpg1aEowTviuawE1at1Ewu1eittNd1uw1ugN1tNT3NT1caug1i1guue1TNqnNtu 1

49 . What is xxx(src As Object, e As EventArgs)?
RRR1at1iE1N3NEu1giEd?NT1
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50 . What is the difference between Absolute vs Rel ative URLs?
48tw?nuN1B'n??L1Wni?aoaNd1#’FtQ1
· lwEuiaE1i??1aEowTviuawE1ENpNttiTL1owT1ugN18TwctNTywT1wugNT1p?aNEu1eTwsTivk1uw1?wpiuN1
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1
Dot Net - Asp.Net - Basic II
1
1 . What is the difference between URL and URI? 1
41#’F1at1ugN1iddTNtt1wo1twvN1TNtwnTpN1wE1ugN10N8r1cgapg1vNiEt1ugiu1EwTvi??L1Lwn1
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twvNcgNTN1wE1ugN1mEuNTENu1iEd1ippNttNt1twvNugaEs 1
41#’m1at1Jntu1i1nEaqnN1tuTaEs1ugiu1nEaqnN?L1adNEuaoaNt1twvNugaEsr1pwvvwE?L1i1
EivNteipN 1HwvNuavNt1ugNL1?ww-1?a-N1i1#’F1ugiu1Lwn1pwn?d1uLeN1aEuw1ugN1iddTNtt18iT1wo1
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Jntu1i1nEaqnN1tNu1wo1pgiTipuNTtr1ugiur1aE1oipur1dwEDu1N3NE1gi3N1uw18N1nEaqnN 1
#’m1at1ugN1vwTN1sNENTap1uNTvr1iEd1i1#’F1at1i1eiTuapn?iT1uLeN1wo1#’m1aE1ugiu1i1#’F1git1
uw1nEaqnN?L1adNEuaoL1twvN1TNtwnTpN1wE1ugN10N8 1
2 . How to convert milliseconds into time? 1
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3 . How to include multiple vb/cs files in the sour ce?1
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[_X1ittNv8?L1tTpV=uNtuX 38=1_\1
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[_X1ittNv8?L1tTpV=uNtuX pt=1_\1
1
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1
4 . How to convert a string to Proper Case? 1
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'wT1vwTN1dNuia?t1TNoNT1 TextInfo.ToTitleCase()1
1
5 . How can I ensure that application-level variabl es are not updated by more
than one user simultaneously? 1
#tN1ugN15uue4ee?apiuawEHuiuNDt1Fwp-1iEd1#EFwp-1vNugwdt 1
'wT1vwTN1dNuia?t1TNoNT1Q1zHx.Q14ee?apiuawE1HuiuN1
6 . Why do I get the error message "System.InvalidO perationException: It is
invalid to show a modal dialog or form when the app lication is not running in
UserInteractive mode. Specify the ServiceNotificati on or DefaultDesktopOnly
style to display a ...."?1
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7 . How to validate that a string is a valid date?1
67 .Wh1
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8 . Are namespaces and Class names Case Sensitive? 1
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9 . How to convert string to a DateTime and compare it with another DateTime? 1
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10 . How to get the url of page dynamically? 1
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11 . How to convert user input in dMy format to Mdy ?1
67 .Wh1
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'wT1vwTN1dNuia?t1TNoNT1 DateTime.ParseExact1
1
12 . When the User is prompted a File Download dial ogbox, if the user selects
"Save" then the "Save as" dialog box is displayed. Is there any way for me to
retrieve the filename and directory path specified by the user on the File
Download dialog box? 1
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eiTivNuNT1owT1ugN1pwEuNEu2datewtauawE1gNidNT 1Hua??r1ugN1ntNT1at1oTNN1uw1pgiEsN1ugiu1eiug1
cgNE1ipuni??L1dwcE?widaEs 1
13 . How to hide or show Controls in server side co de?1
mE1iEL1ieeTweTaiuN1N3NEu1cTauN1
67 .Wh1
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1
14 . How to check if the user is using a secure or non secure connection? 1
hgN1’NqnNtu1b8JNpu1dNoaENt1i1jTweNTuL1pi??Nd1IsSecureConnectionr1ugiu1ca??1aEdapiuN1
cgNugNT1guueQBB1wT1guuetQBB1git18NNE1ntNd 1
15 . Is it possible to write code in many languages in one ASP.NET project?1
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Lwn1piE1cTauN1ugN1iteR1eisNt1iEd1itpR1pwEuTw?t1aE1daooNTNEu1?iEsnisNt 1
1
16 . What is the difference between Response.Redire ct() and Server.Transfer().1
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ugN1wugNT1eisN 1
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ugN1w?d1eisN1taEpN1wE?L1NRNpnuawE1at1uTiEtoNTNd1uw1ENc1eisN1iEd1Ewu1pwEuTw? 1
· bppnTt1NEuaTN?L1wE1ugN1tNT3NTr1Ew1ipuawE1at1ENNdNd18L1ugN1p?aNEu1
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17 . How to get the hostname or IP address of the s erver?1
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· HttpContext.Current.Request.ServerVariables["LOCAL_ 4xx’=“1
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iddTNtt 1
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gwtu1gNidNTt1
18 . What is the meaning of validateRequest=true in .net framework1.1?1
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oTivNcwT-1ca??1inuwviuapi??L1dNEL1tn8vattawE1wo1ugN1D[D1iEd1D\D1pgiTipuNTt 1
19 . What is the different between and ? 1
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20 . What permissions do ASP.NET applications posse s by default?1

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21 . How can I specify the relative path for a file?1
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22 . How can I specify the "upload a file" input te xtbox in a form to be read only
so that the user can click on the browse button and pick a file but they cannot
type anything into the textbox next to the browse b utton.1
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23 . How to change the Page Title dynamically? 1
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24 . Why do I get the error message "Object must im plement IConvertible". How
can I resolve it?1
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25 . Why is default.aspx page not opened if i speci fy http://localhost. I am able
to view this page if i hardcode it as http://localh ost/default.aspx?1
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26 . Can ASP.NET work on an NT server? 1
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27 . Is it possible to migrate Visual InterDev Desi gn-Time Controls to ASP.NET? 1
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28 . How to automatically get the latest version of all the asp.net solution items
from Source Safe when opening the solution? 1
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29 . How to make VS.Net use FlowLayout as the defau lt layout rather than the
GridLayout?1
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30 . Can I use a DataReader to update/insert/delete a record?1
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31 . How to format a Telphone number in the xxx-xxx -xxxx format?1
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32 . Can two different programming languages be mix ed in a single ASPX file?1
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33 . Can I use custom .NET data types in a Web form ?1
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34 . How can I have a particular Web page in an ASP .NET application which
displays its own error page.1
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Dot Net - C#.Net

1 . Does C# support multiple-inheritance?
.w 1
2 . Who is a protected class-level variable availab le to?
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3 . Are private class-level variables inherited?
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4 . Describe the accessibility modifier “protected internal”.
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5 . What’s the top .NET class that everything is de rived
from?
HLtuNv b8JNpu 1
6 . What does the term immutable mean?
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cit1datpiTdNd1iEd1i1ENc1diui13i?nN1cit1pTNiuNd1aE1vNvwTL 1
7 . What’s the difference between System.String and
System.Text.StringBuilder classes?
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8 . What’s the advantage of using
System.Text.StringBuilder over System.String? i
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9 . Can you store multiple data types in System.Arr ay?i
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10 . What’s the difference between the
System.Array.CopyTo() and System.Array.Clone()? i
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11 . How can you sort the elements of the array in
descending order?i
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12 . What’s the .NET collection class that allows a n
element to be accessed using a unique key? i
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13 . Will the finally block get executed if an exception has
not occurred?i
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14 . What’s the C# syntax to catch any possible exc eption?i
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15 . Can multiple catch blocks be executed for a si ngle try
statement?i
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16 . Explain the three services model commonly know as a
three-tier application.i
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i
iii
Class Questionsi
17 . What is the syntax to inherit from a class in C#?i

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18 . Can you prevent your class from being inherite d by
another class?1
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19 . Can you allow a class to be inherited, but pre vent the
method from being over-ridden? 1
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20 . What’s an abstract class?1
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21 . When do you absolutely have to declare a class as
abstract?1
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22 . What is an interface class?1
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23 . Why can’t you specify the accessibility modifi er for
methods inside the interface? 1
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24 . Can you inherit multiple interfaces? 1
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25 . What happens if you inherit multiple interface s and
they have conflicting method names? 1
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26 . What’s the difference between an interface and
abstract class?1
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27 . What is the difference between a Struct and a Class?i
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Method and Property Questions i
28 . What’s the implicit name of the parameter that gets
passed into the set method/property of a class? i
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29 . What does the keyword “virtual” declare for a method
or property?i
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30 . How is method overriding different from method
overloading?i
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31 . Can you declare an override method to be stati c if the
original method is not static?i
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32 . What are the different ways a method can be
overloaded?i
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33 . If a base class has a number of overloaded
constructors, and an inheriting class has a number of
overloaded constructors; can you enforce a call fro m an
inherited constructor to a specific base constructo r?i
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i
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Events and Delegates i
34 . What’s a delegate?i
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35 . What’s a multicast delegate? i
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36 . Is XML case-sensitive?i
Ectmi
37 . What’s the difference between // comments, /* */
comments and /// comments? i
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38 . How do you generate documentation from the C# file
commented properly with a command-line compiler? i
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i
Debugging and Testing Questions i
39 . What debugging tools come with the .NET SDK? i
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40 . What does assert() method do? i
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41 . What’s the difference between the Debug class and
Trace class?i
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42 . Why are there five tracing levels in
System.Diagnostics.TraceSwitcher? i
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43 . Where is the output of TextWriterTraceListener
redirected?i
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44 . How do you debug an ASP.NET Web application? i
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45 . What are three test cases you should go throug h in
unit testing?i
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46 . Can you change the value of a variable while
debugging a C# application? i
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ADO.NET and Database Questions i
47 . What is the role of the DataReader class in AD O.NET
connections?i
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48 . What are advantages and disadvantages of Micro soft-
provided data provider classes in ADO.NET? i
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49 . What is the wildcard character in SQL? i
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50 . Explain ACID rule of thumb for transactions. i
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51 . What connections does Microsoft SQL Server sup port?i
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52 . Between Windows Authentication and SQL Server
Authentication, which one is trusted and which one is
untrusted?i
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53 . What does the Initial Catalog parameter define in the
connection string?i
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54 . What is a pre-requisite for connection pooling ?i
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Assembly Questions i
55 . How is the DLL Hell problem solved in .NET? i
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56 . What are the ways to deploy an assembly? i
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57 . What is a satellite assembly?i
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58 . What namespaces are necessary to create a loca lized
application?i
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59 . What is the smallest unit of execution in .NET ?i
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60 . When should you call the garbage collector in .NET?i
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61 . How do you convert a value-type to a reference -type?i
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62 . What happens in memory when you Box and Unbox a
value-type?i
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