.NET Interview Questions 4 th Edition By Shivprasad ... - A2Z Dotnet

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Figure: - 1.10 Exception Hierarchy Note:- Frankly we have always relied on using Microsoft exception application blocks. As such I have never used application exception; we think most of the work can be done using System exception classes. (I)What is CODE Access security? CAS is part of .NET security model that determines whether a piece of code is allowed to run and what resources it can use while running. Example CAS will allow an application to read but not to write and delete a file or a resource from a folder.. (I)What is a satellite assembly? Refer Localization chapter for more details (A) How to prevent my .NET DLL to be decompiled? By design, .NET embeds rich Meta data inside the executable code using MSIL. Any one can easily decompile your DLL back using tools like ILDASM (owned by Microsoft) or Reflector for .NET which is a third party. Secondly, there are many third party tools, which make this decompiling process a click away. So any one can easily look in to your assemblies and reverse engineer them back in to actual source code and understand some real good logic, which can make it easy to crack your application. The process by which you can stop this reverse engineering is using “obfuscation”. It is a technique, which will foil the decompilers. Many third parties (XenoCode, Demeanor for .NET) provide .NET obfuscation solution. Microsoft includes one that is Dotfuscator Community Edition with Visual Studio.NET.
Note:- We leave this as homework to reader’s compile, a DLL obfuscate it using “Dotfuscator Community Edition” which comes with Visual Studio.NET and try viewing the same using ILDASM. (I) what is the difference between Convert.toString and .toString () method? Just to give an understanding of what the above question means see the below code. int i =0; MessageBox.Show(i.ToString()); MessageBox.Show(Convert.ToString(i)); We can convert the integer “i” using “i.ToString()” or “Convert.ToString” so what is the difference. The basic difference between them is “Convert” function handles NULLS while “i.ToString()” does not it will throw a NULL reference exception error. So as a good coding practice using “convert” is always safe. (A) What is Native Image Generator (Ngen.exe)? The Native Image Generator utility (Ngen.exe) allows you to run the JIT compiler on your assembly's MSIL and generate native machine code which is cached to disk. After the image is created .NET runtime will use the image to run the code rather than from the hard disk. Running Ngen.exe on an assembly potentially allows the assembly to load and execute faster, because it restores code and data structures from the native image cache rather than generating them dynamically. Below are some points to be remembered for Native Image Generator:- • Native images load faster than MSIL because JIT compilation and type-safety verifications is eliminated. • If you are sharing code between process Ngen.exe improves the performance significantly. As Native image generated Windows PE file so a single DLL file can be shared across applications. By contrast JIT produced code are private to an assembly and cannot be shared. • Native images enable code sharing between processes. • Native images require more storage space and more time to generate. • Startup time performance improves lot. We can get considerable gains when applications share component assemblies because after the first application has been started the shared components are already loaded for subsequent applications. If assemblies in an application must be loaded from the hard disk, does not benefit as much from native images because the hard disk access time shadows everything. • Assemblies in GAC do not benefit from Native image generator as the loader performs extra validation on the strong named assemblies thus shadowing the benefits of Native Image Generator. • If any of the assemblies change then Native image should also be updated.
Page 1 and 2: .NET Interview Questions 4 th Editi
Page 3 and 4: Ok that’s me …. ☺ mail me you
Page 5 and 6: (I) How can we use COM Components i
Page 7 and 8: (B) What are benefits and Limitatio
Page 9 and 10: (A) What are the various ways of au
Page 11 and 12: (B) How can we load multiple tables
Page 13 and 14: (B)How do you start a project?.....
Page 15 and 16: (I) what are the advantages of host
Page 17 and 18: (I) what is the concept of Web part
Page 19 and 20: • Full range of interview questio
Page 21 and 22: (A) Advanced Questions These are ad
Page 23 and 24: Note : - A sample resume is provide
Page 25 and 26: • Do not be harsh during salary n
Page 27 and 28: • Do not mention client names in
Page 29 and 30: • IL (Intermediate language)-to-n
Page 31 and 32: You can expand the tree for detail
Page 33 and 34: cryptography (PKC) to ensure that n
Page 35 and 36: Figure: - 1.8 Click on ‘Use a key
Page 37 and 38: Dim PobjObject As Object Dim PobjBu
Page 39: Advantages of C# • With Option St
Page 43 and 44: OK first let us try to understand w
Page 45 and 46: Figure 1.13: - Strong naming your D
Page 47 and 48: Now comes the most important part o
Page 49 and 50: The “Codedom” folder in the CD
Page 51 and 52: Figure: - 2.1 Adding Reference usin
Page 53 and 54: Note:- Source code of this is provi
Page 55 and 56: MessageBox.Show(“ end of sleeping
Page 57 and 58: In order to inform an object that t
Page 59 and 60: { // Something went wrong Abort and
Page 61 and 62: Note:- Use this setting during the
Page 63 and 64: Note: - If you run the sample, you
Page 65 and 66: (A) What are Daemon threads and how
Page 67 and 68: (B) What is the difference between
Page 69 and 70: Figure :- 4.3 Solution Explorer of
Page 71 and 72: • Server then hosts the object so
Page 73 and 74: Figure: - 4.5 Client Program output
Page 75 and 76: Therefore, the best way is to have
Page 77 and 78: mode=”SingleCall” type=”Serve
Page 79 and 80: (I) How can we call methods in remo
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Page 83 and 84: _ and "Service.asmx" to "Maths.asmx
Page 85 and 86: Figure: - 4.13 Solution is showing
Page 87 and 88: Sub cmdCalculate_Click(ByVal sender
Page 89 and 90: Dim file As New _ System.IO.StreamR
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• ASP session state has no inhere
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(A) Does the performance for viewst
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Below is a sample “Login” query
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• Enable ASP.NET polling using
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dbo.[Products_AspNet_SqlCacheNotifi
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Try to Get Products List from the C
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generates some dynamic content, and
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Following are characteristics of Ob
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End Class Above is the source code
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My attitude towards abstract class
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Private Sub cmdDelegates_Click (ByV
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Figure: - 6.5 Events in action Note
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• Public: - All members have acce
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End Class Figure: - 6.7 Shared/Stat
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End Class Note :- I leave this to t
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Public Overloads Sub Dispose()Imple
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(B) What is AppSetting Section in
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Using ‘Server.Transfer’ you can
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ASP.NET. Otherwise, they will be re
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Repeater control allows for complet
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Application_AuthenticateRequest: Fi
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(I)What exactly happens when ASPX p
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... • Depending on the Fil
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Figure: - 7.4 Medium pooled scenari
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• Create the login page, which wi
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{ } protected override void OnConti
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However, when we enable web garden
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sure that the allow Definition attr
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(B) Which namespace is needed to im
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(B) What are design patterns? Desig
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Figure: - 8.1 Class diagram of a fa
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• Model: - This section is repres
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Figure: - 8.4 Façade in action Abo
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• Services have URL where anyone
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Figure: - 8.6 Windows DNA sections
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Audit Trail logging. Thus, we have
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Return pstrNewValue End Get Set(ByV
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Get Return pstrUserName End Get Set
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Figure: - 9.1 ADO.NET Architecture
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Update:- Calls the respective Inser
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‘ note if this gives error see wh
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Figure :- 9.3 Load only the Employe
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CREATE PROCEDURE SelectByEmployee @
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lstData.DataSource = objDataSet.Tab
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Fourth point is the answer to the t
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• Open a database connection usin
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(I) What extra features does ADO.Ne
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Figure: - 10.3 Normalized customer
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• Every index increases the time
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storing one of the numbers, and the
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(I)What are the different locks in
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• NO ACTION:-NO ACTION specifies
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Atomicity • A transaction must be
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Merge Replication. Merge replicatio
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(B) What is the difference between
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Sequence diagram, Object diagram, U
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Deployment diagrams are again not a
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Figure: - 11.2 Elements of Activity
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Figure: - 11.4 Elements of componen
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(A) Describe the various components
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Shallow History: - Represents the s
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(A)Explain the different elements o
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Figure: - 12.1 Graph showing cost v
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Figure:-12.3 Risk % according to pr
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(B) What is triple constraint trian
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diagram, it may be referred to as a
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• application risk metrics Workfl
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According to IEEE, standards follow
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does not affect interaction with ot
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(A)What is CMMI? It is a collection
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Figure 12.9: - CMMI Levels (A) What
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SAM - Supplier Management Agreement
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GG 2 Institutionalize a Managed Pro
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Purpose The purpose of Integrated P
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Organizational Environment for Inte
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SP 1.2-1 Establish Process Performa
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SG 2 Develop a Project Plan SP 2.1-
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Specific Practices by Goal SG 1 Man
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SP 1.2-2 Establish the Validation E
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Champions are responsible for the S
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Figure 12.11: - Supplier ER databas
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External Input (EI) Following are p
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Figure 12.13: - GSC rated in estima
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(I) What is the FP per day in your
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(B) What is CDATA section in XML? A
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DOM parser then picks up the “qua
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Figure 13.4: - XSLT Processor in Ac
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“TestingXML.XML” file and displ
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Therefore, the XmlTextReader only c
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Figure 14.2: - Text length increase
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Figure 14.5: - Different users logg
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Figure 14.8: - Output from Request.
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(I) Can resource file be in any oth
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Figure 14.14: - Login screen accord
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Once the resource manager is popula
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Figure 14.19: - Walkthrough for usi
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You can also create tables with par
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set it for the whole application, a
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Services use Schemas to represent d
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transactions written in C# or VB.NE
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When you are using simple data type
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If you compile the project, you wil
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• Host in Application domain and
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Figure 15.13:- IIS Configuration In
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If IIS finds that a service is not
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Figure 15.17: - One-Way in action A
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The first step is to change the ser
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Figure 15.20:- Server side code for
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Note: - You can find the sample cod
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Figure 15.25:- MSMQ Server side dis
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Chaos: - pending changes from more
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or non-graphical. WPF parses the XA
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(A) What kind of documents are supp
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Figure 17.2: - Sequential and State
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in snapshot 3. If you double click
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Figure 17.5:- Sequential workflow w
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See the above snippet of the XO
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Figure 18.1:- The problem • Synch
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Figure 18.3:- Basic XMLHTTP code (B
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Figure 18.4:- Ajax folder structure
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clsMyCustomCustomer is the class wh
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• ASP.NET authentication, role an
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Figure 18.11: - Script Manager and
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(A) How can you do validations in A
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If you make ‘InLineProxy’ prope
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Figure 18.21: - ServiceMethod and S
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Reports engine does the formatting
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Figure 19.4 :- Table added in repor
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Figure 19.8 : - Publish Crystal as
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Figure 19.10 :- Parameter fields (I
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(A) How can we do grouping in cryst
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the request to the report processor
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Reporting Services Database:- When
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(B) What is the basic process of ma
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If we want to pass parameters to th
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these elements are then used to cre
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• Introduction to web part, gener
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Figure: - 20.3 Web.config file edit
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-- or -- aspnet_regiis.exe -pe sect
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Figure: - 20.5 Decrypting the conne
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Figure: - 20.7 Web.config modificat
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Roles Figure: - 20.9 Membership pro
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Figure: - 20.11 Reusable login cont
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Figure: - 20.14 Master and the chil
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Figure: - 20.17 Edit information us
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Connect mode: - This mode allows we
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• Drag the ‘webpartmanager’ o
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In the behind code we need to ensur
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tie the generic with a data type we
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objEmail.To = "shiv_koirala@yahoo.c
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Figure 21.2 : - project output Step
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(I) We already have common data acc
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Note: - If you are looking for how
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.NET Interview Questions 4 th Edition By Shivprasad ... - A2Z Dotnet

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