DOCSLIB.ORG

Dotnet, Asp.Net and Sql Server)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Dotnet, Asp.Net and Sql Server) Important Topics for Interviews http://neerajkaushik1980.wordpress.com __________________________________________________________________________________________ Important topics for Inteviews (dotnet, Asp.Net and Sql Server) Contributor: Neeraj Kaushik Email: [email protected], [email protected] Page- 1 - Important Topics for Interviews http://neerajkaushik1980.wordpress.com __________________________________________________________________________________________ Table of Contents 1. What CLR Does?.................................................................................................................................................................... 5 2. Explain CTS (Common Type System)? .............................................................................................................................. 6 3. Explain CLS (Common Language Specification). ............................................................................................................. 7 4. Explain Boxing and unboxing? ........................................................................................................................................... 10 5. Explain Variables in C#. ...................................................................................................................................................... 10 6. Explain Jump statements in c#. ......................................................................................................................................... 12 7. What is nullable Type? ........................................................................................................................................................ 15 8. Why does string in .net is immutable? .............................................................................................................................. 17 9. Explain string Comparison? ................................................................................................................................................ 17 10. Explain String Interning?................................................................................................................................................ 19 11. Explain String Pooling? .................................................................................................................................................. 20 12. Explain string builder functioning behind the scene? ................................................................................................ 21 13. Explain Indexers? ................................................................................................................................................................... 21 13. Explain difference between Indexer and properties? ................................................................................................ 23 14. Explain Iterators? ............................................................................................................................................................ 23 15. Explain secure strings? .................................................................................................................................................. 25 16. Explain Enumerated types. ........................................................................................................................................... 26 17. Explain interface. ............................................................................................................................................................ 27 18. Should I design a base type or an interface? ............................................................................................................. 29 19. Explain App domain? ..................................................................................................................................................... 30 20. Explain Threading in dot net? ....................................................................................................................................... 30 21. What is diffgram? ............................................................................................................................................................ 31 22. How assignment of value is different in value type and reference type? ............................................................... 31 23. Difference between shallow copy and deep copy of object. .................................................................................... 32 24. What is use of using keyword? ..................................................................................................................................... 33 25. What is cloning? .............................................................................................................................................................. 33 26. What is Assembly? Difference between Private and Shared Assembly? How can we make shared assembly? 34 27. Why value type cannot be inherited?........................................................................................................................... 34 28. What is the difference between an event and a delegate? ...................................................................................... 34 29. What size is .net object? ................................................................................................................................................ 34 30. When and How to Use Dispose and Finalize in C#? ................................................................................................. 35 31. What is difference between equivalent of objects and identical of objects? .......................................................... 40 32. What's the difference between the System.Array.CopyTo() and System.Array.Clone()? ................................... 41 33. How ado.net maintain transaction of data? ................................................................................................................ 41 34. What is delay signing? ................................................................................................................................................... 42 35. Can you declare a C++ type destructor in C# like ~MyClass ()? ............................................................................. 42 36. What is difference between == and .Equals? ............................................................................................................. 43 37. What is the difference between structures and enumeration? ................................................................................. 43 38. Should I make my destructor virtual? .......................................................................................................................... 43 39. How do I declare a pure virtual function in C#? ......................................................................................................... 43 40. Where would you use an iHTTPModule, and what are the limitations of any approach you might take in implementing one? ........................................................................................................................................................................ 43 41. What is difference between code base security and role base security? Which one is better? ......................... 43 42. Is it possible to prevent a browser from caching an aspx page? ............................................................................. 44 43. What is the difference between Debug. Write and Trace. Write? ........................................................................... 44 44. What is difference between repeater over datalist and datagrid? ........................................................................... 44 45. Describe Main Characteristics of static functions? .................................................................................................... 44 46. What is DataReader? Difference between datareader and dataset? ..................................................................... 45 47. What is DLL hell? ............................................................................................................................................................ 45 48. What is Temporary Table? How can we create it? .................................................................................................... 45 Page- 2 - Important Topics for Interviews http://neerajkaushik1980.wordpress.com __________________________________________________________________________________________ 49. What is strong key and what is the use of it? ............................................................................................................. 47 50. What is Impersonation? ................................................................................................................................................. 47 51. What is Partitioned Tables? .......................................................................................................................................... 48 52. What types of data validation events are commonly seen in the client-side form validation? Web service support ..... 48 54. What is PreProcessor in .NET and type , where it use? ........................................................................................... 50 55. Please brief not
Load more

Recommended publications
  • Atd Documentation Martin Jambon
    atd Documentation Martin Jambon May 03, 2020 Contents 1 Tutorial 1 1.1 What is atdgen?.............................................1 1.2 What are the advantages of atdgen?...................................1 1.3 Prerequisites...............................................1 1.4 Getting started..............................................2 1.5 Inspecting and pretty-printing JSON...................................3 1.6 Inspecting biniou data..........................................4 1.7 Optional fields and default values....................................6 1.8 Smooth protocol upgrades........................................7 1.8.1 Adding or removing an optional record field..........................7 1.8.2 Adding a required record field.................................8 1.8.3 Removing a required record field................................8 1.8.4 Adding a variant case......................................8 1.8.5 Removing a variant case....................................8 1.8.6 Avoiding future problems....................................8 1.9 Data validation..............................................9 1.10 Modularity: referring to type definitions from another ATD file.................... 12 1.11 Managing JSON configuration files................................... 13 1.12 Integration with ocamldoc........................................ 17 1.13 Integration with build systems...................................... 18 1.13.1 OMake............................................. 18 1.13.2 GNU Make........................................... 19 1.13.3
    [Show full text]
  • Code Review Guide
    CODE REVIEW GUIDE 3.0 RELEASE Project leaders: Mr. John Doe and Jane Doe Creative Commons (CC) Attribution Free Version at: https://www.owasp.org 1 2 F I 1 Forward - Eoin Keary Introduction How to use the Code Review Guide 7 8 10 2 Secure Code Review 11 Framework Specific Configuration: Jetty 16 2.1 Why does code have vulnerabilities? 12 Framework Specific Configuration: JBoss AS 17 2.2 What is secure code review? 13 Framework Specific Configuration: Oracle WebLogic 18 2.3 What is the difference between code review and secure code review? 13 Programmatic Configuration: JEE 18 2.4 Determining the scale of a secure source code review? 14 Microsoft IIS 20 2.5 We can’t hack ourselves secure 15 Framework Specific Configuration: Microsoft IIS 40 2.6 Coupling source code review and penetration testing 19 Programmatic Configuration: Microsoft IIS 43 2.7 Implicit advantages of code review to development practices 20 2.8 Technical aspects of secure code review 21 2.9 Code reviews and regulatory compliance 22 5 A1 3 Injection 51 Injection 52 Blind SQL Injection 53 Methodology 25 Parameterized SQL Queries 53 3.1 Factors to Consider when Developing a Code Review Process 25 Safe String Concatenation? 53 3.2 Integrating Code Reviews in the S-SDLC 26 Using Flexible Parameterized Statements 54 3.3 When to Code Review 27 PHP SQL Injection 55 3.4 Security Code Review for Agile and Waterfall Development 28 JAVA SQL Injection 56 3.5 A Risk Based Approach to Code Review 29 .NET Sql Injection 56 3.6 Code Review Preparation 31 Parameter collections 57 3.7 Code Review Discovery and Gathering the Information 32 3.8 Static Code Analysis 35 3.9 Application Threat Modeling 39 4.3.2.
    [Show full text]
  • Dot Net Programming CLASS: TYBBA(CA) V SEM (2013 PATTERN)
    DNYANSAGAR ARTS AND COMMERCE COLLEGE, BALEWADI, PUNE – 45 Subject: 503 : Dot Net Programming CLASS: TYBBA(CA) V SEM (2013 PATTERN) Unit 1 :Introduction to .Net Framework Introduction to .NET Framework .NET is a software framework which is designed and developed by Microsoft. The first version of the .Net framework was 1.0 which came in the year 2002. In easy words, it is a virtual machine for compiling and executing programs written in different languages like C#, VB.Net etc. It is used to develop Form-based applications, Web-based applications, and Web services. There is a variety of programming languages available on the .Net platform, VB.Net and C# being the most common ones. It is used to build applications for Windows, phone, web, etc. It provides a lot of functionalities and also supports industry standards. .NET Framework supports more than 60 programming languages in which 11 programming languages are designed and developed by Microsoft. The remaining Non-Microsoft Languages which are supported by .NET Framework but not designed and developed by Microsoft. Common Language Runtime(CLR): CLR is the basic and Virtual Machine component of the .NET Framework. It is the run-time environment in the .NET Framework that runs the codes and helps in making the development process easier by providing the various services such as remoting, thread management, type-safety, memory management, robustness, etc.. Basically, it is responsible for managing the execution of .NET programs regardless of any .NET programming language. It also helps in the management of code, as code that targets the runtime is known as the Managed Code and code doesn’t target to runtime is known as Unmanaged code.
    [Show full text]
  • CA Application Performance Management API Reference Guide
    CA Application Performance Management API Reference Guide Release 9.5 This Documentation, which includes embedded help systems and electronically distributed materials, (hereinafter referred to as the “Documentation”) is for your informational purposes only and is subject to change or withdrawal by CA at any time. This Documentation may not be copied, transferred, reproduced, disclosed, modified or duplicated, in whole or in part, without the prior written consent of CA. This Documentation is confidential and proprietary information of CA and may not be disclosed by you or used for any purpose other than as may be permitted in (i) a separate agreement between you and CA governing your use of the CA software to which the Documentation relates; or (ii) a separate confidentiality agreement between you and CA. Notwithstanding the foregoing, if you are a licensed user of the software product(s) addressed in the Documentation, you may print or otherwise make available a reasonable number of copies of the Documentation for internal use by you and your employees in connection with that software, provided that all CA copyright notices and legends are affixed to each reproduced copy. The right to print or otherwise make available copies of the Documentation is limited to the period during which the applicable license for such software remains in full force and effect. Should the license terminate for any reason, it is your responsibility to certify in writing to CA that all copies and partial copies of the Documentation have been returned to CA or destroyed. TO THE EXTENT PERMITTED BY APPLICABLE LAW, CA PROVIDES THIS DOCUMENTATION “AS IS” WITHOUT WARRANTY OF ANY KIND, INCLUDING WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NONINFRINGEMENT.
    [Show full text]
  • Declare Property Class Accept Null C
    Declare Property Class Accept Null C Woesome and nontechnical Joshuah planned inveterately and pull-outs his frontiers sourly and daftly. Unquiet Bernard fly-by very instructively while Rick remains ectotrophic and chastened. Sometimes stereoscopic Addie unnaturalizes her acorns proportionally, but unlidded Cat invert heinously or orientalizes rancorously. Even experts are accepted types and positional parameters and references, and assigns to. Use HasValue property to check has value is assigned to nullable type sometimes not Static Nullable class is a. Thank you declare more freely, declare property class accept null c is useful to provide only one dispiriting aspect of. Here we're defining a suggest that extracts all non-nullable property keys from plant type. By disabling cookies to accept all? The car variable inside counter Person class shouldn't be declared type grass and. Use JSDoc type. Any class property name, null safe code token stream of properties and corresponds to accept a class! Why death concept of properties came into C The decline because not two reasons If the members of a class are private then select another class in C. JavaScript Properties of variables with null or undefined. Type cup type as should pickle the null value variable the pastry of the variable to which null. CS31 Intro to C Structs and Pointers. Using the New Null Conditional Operator in C 6 InformIT. Your extra bet is to get themselves the good group of initializing all variables when you disabled them. This class that null values can declare variables declared inside an exception handling is nullable context switches a varargs in.
    [Show full text]
  • C# Datetime Null Values
    C# datetime null values click here to download That will now set the result to null if dateTimeEnd isn't valid. Note that TryParse DateTime is a non-nullable value type c# Nullable Datetime. This C# example program uses a nullable DateTime instance. GetValueOrDefault()); } static void Test(DateTime? value) { // // This method uses the HasValue. Hi, How can I assign Null value to datetime? you need to assign like this in C#. DateTime? variablename = null;. Regards, GopalChettri (MCP). Free source code and tutorials for Software developers and Architects.; Updated: 10 Jun I'm writing a C# program to www.doorway.ru files from SQL 2)How to I set a DateTime field to null? Thanks, Marcie. Friday DateTime may be declared as nullable, that's to say no value may be affected to it. Declaration of a. DateTime is a value class not a ref class so it can't be null. 1st of all, while retriving "dates" into DateTime values, 1st you better change the . the datetime column in sql server can be insert a null value in C# code, and this. How to assign Null value to datetime variable using nullable I am getting a value from the textbox (I select a date) but, may be sometimes user. Inserting a null value to the DateTime Field in SQL Server is one of the most common issues giving various errors. Even if one enters null. Just call the nullable item and it will return the value if it exists. C# DateTime? returnDate = null; DateTime? d = www.doorway.ru; //Will. Every C# developer knows how to work with value types like int, double, boolean, char, and DateTime.
    [Show full text]
  • Programming with Windows Forms
    A P P E N D I X A ■ ■ ■ Programming with Windows Forms Since the release of the .NET platform (circa 2001), the base class libraries have included a particular API named Windows Forms, represented primarily by the System.Windows.Forms.dll assembly. The Windows Forms toolkit provides the types necessary to build desktop graphical user interfaces (GUIs), create custom controls, manage resources (e.g., string tables and icons), and perform other desktop- centric programming tasks. In addition, a separate API named GDI+ (represented by the System.Drawing.dll assembly) provides additional types that allow programmers to generate 2D graphics, interact with networked printers, and manipulate image data. The Windows Forms (and GDI+) APIs remain alive and well within the .NET 4.0 platform, and they will exist within the base class library for quite some time (arguably forever). However, Microsoft has shipped a brand new GUI toolkit called Windows Presentation Foundation (WPF) since the release of .NET 3.0. As you saw in Chapters 27-31, WPF provides a massive amount of horsepower that you can use to build bleeding-edge user interfaces, and it has become the preferred desktop API for today’s .NET graphical user interfaces. The point of this appendix, however, is to provide a tour of the traditional Windows Forms API. One reason it is helpful to understand the original programming model: you can find many existing Windows Forms applications out there that will need to be maintained for some time to come. Also, many desktop GUIs simply might not require the horsepower offered by WPF.
    [Show full text]
  • Appendixes APPENDIX A
    PART 8 Appendixes APPENDIX A COM and .NET Interoperability The goal of this book was to provide you with a solid foundation in the C# language and the core services provided by the .NET platform. I suspect that when you contrast the object model provided by .NET to that of Microsoft’s previous component architecture (COM), you’ll no doubt be con- vinced that these are two entirely unique systems. Regardless of the fact that COM is now considered to be a legacy framework, you may have existing COM-based systems that you would like to inte- grate into your new .NET applications. Thankfully, the .NET platform provides various types, tools, and namespaces that make the process of COM and .NET interoperability quite straightforward. This appendix begins by examin- ing the process of .NET to COM interoperability and the related Runtime Callable Wrapper (RCW). The latter part of this appendix examines the opposite situation: a COM type communicating with a .NET type using a COM Callable Wrapper (CCW). ■Note A full examination of the .NET interoperability layer would require a book unto itself. If you require more details than presented in this appendix, check out my book COM and .NET Interoperability (Apress, 2002). The Scope of .NET Interoperability Recall that when you build assemblies using a .NET-aware compiler, you are creating managed code that can be hosted by the common language runtime (CLR). Managed code offers a number of ben- efits such as automatic memory management, a unified type system (the CTS), self-describing assemblies, and so forth. As you have also seen, .NET assemblies have a particular internal compo- sition.
    [Show full text]
  • Ultimate C#, .Net Interview Q&AE-Book
    Register your resume: www.terrafirmajobs.com _________________________________________________ www.terrafirmajobs.com Ultimate C#, .Net Interview Q&AE-book Free E-books available with Terra Firma Java Interview Q&A Terra Firma’s Interview Kit Are you stressed at your Desk Restore the rhythm of your life IT Resume writing tips Heart-Care Tips To get these free e-books, email to: [email protected] with the title of the e-book. Copy Right Note You are permitted to freely distribute/print the unmodified version of this issue/e-book/article. We are not attempting to obtain commercial benefit from the valuable work of the authors and the Editor/Publisher claims the ‘fair use’ of copyrighted material. If you think that by publishing a particular material, your copyright has been violated, please let us know. The Editor/Publisher is not responsible for statements or opinions expressed herein nor do such statements necessarily express the views of Editor/Publisher. 1 More Career Tips: http://www.terrafirmajobs.com/ITpros/IT_resources.asp?id=4 ______________________________________________________________________________ Register your resume: www.terrafirmajobs.com _________________________________________________ Index Chapter Name Page 1) C# interview Questions and Answers. 4 1.1) Advance C# interview Questions 2) General Questions 17 2.1 ) General Questions 2.2 ) Methods and Property 2.3) Assembly Questions 2.4) XML Documentation Question 2.5) Debugging and Testing 3) ADO.net and Database Question 26 4) C#, DOT NET, XML, IIS Interview Questions 28 4.1 ) Framework. 4.2 ) COM 4.3 ) OOPS 4.4 ) C# Language Features 4.5 ) Access Specifier 4.6 ) Constructor / Destructor 4.7 ) ADO.net 4.8 ) ASP.net 4.8.1) Session.
    [Show full text]
  • Define ​Basic String View(Nullptr)
    Doc. no.: P0903R2 Date: 2018-05-07 Reply to: Ashley Hedberg ([email protected]), Titus Winters ([email protected]), ​ ​ ​ ​ Jorg Brown ([email protected]) ​ ​ Audience: LEWG/EWG/LWG Define basic_string_view(nullptr) ​ Abstract 1 Background 2 What is a string_view? 2 What does const char* mean? 2 What is an empty string_view? 3 Existing behavior of basic_string_view(null_char_ptr) 3 Motivation 4 Once we convert into the string_view domain, code is better 4 Nul-terminated strings are not the design we'd choose today 5 Nul-termination + null can match string_view’s existing design 5 Discussion Points 6 Can we we weaken preconditions? (Or: do we believe that string_view(null_char_ptr) is more likely to match programmer intent or to represent a bug?) 6 How many functions are there today that accept const char* and (by contract or not) allow for null values? 7 Which view of string_view design speaks to you: is it a lightweight string, or is it a pointer-and-length pair, or is it a mix of the two? 7 Which provides more net value to the C++ community? 7 Could we add a new type such as nullable_string_view? 7 Will the proposed changes negatively affect performance? 8 Proposed Wording 8 Change History 9 Acknowledgements 9 Abstract This paper proposes modifying the requirements of basic_string_view(const charT* str) ​ such that it becomes well-defined for null pointers, both at compile-time and at runtime. Background What is a string_view? ​ ​ The string_view type has shipped in C++17. Substantive redesign is likely out of the question ​ ​ without getting into P0684 territory and long-term refactoring plans.
    [Show full text]
  • Special Characters Numbers
    Index ■Special Characters AddServiceEndpoint( ) member, ServiceHost type, #define, preprocessor directive, 317–319 1032 #elif, preprocessor directive, 317–318 ADO.NET #else, preprocessor directive, 317–318 additional namespaces, 763–764 #endif, preprocessor directive, 317–318 vs. ADO classic, 759–760 #endregion, preprocessor directive, 317 application configuration files, 769–770 #if, preprocessor directive, 317–318 asynchronous data access, 792–793 #region, preprocessor directive, 317 autogenerated data components, 824–825 #undef, preprocessor directive, 317–319 autogenerating SQL commands, 816–817 % modulo operator, C#, 1097 autoincrementing, 797 & operator, pointer types, 312–313 binding DataTables to user interfaces, 804, 806 * operator, pointer types, 312–313 Command object, 781–782 ?? operator, 133 connected layer, 778 += operator, 610 connected vs. disconnected layer, 760 <%@Page%> directive attribute, ASP.NET, 846 connecting to database, Visual Studio 2005, 776 <%Import%> directive, ASP.NET, 846–847 connection objects, 779–780 => token, 1098 ConnectionStringBuilder object, 780–781 ? suffix, nullable types, 131 connectionStrings element, application configuration, 774–775 ■Numbers data access libraries, 1130 data adapter objects, 811–812 3D graphics graphical service, WPF, 1012 data providers, 760, 762 3D rendered animation, 970 data wizards, 822–825 100% code approach, 1048 DataColumn objects, 796, 798 ■ DataRelation objects, 817–820 A DataRow objects, 798–799, 801 A# programming language, 8 DataRow.RowState property, 799–800 Abort(
    [Show full text]
  • Introducing LINQ 2
    Please post comments or corrections to the Author Online forum at http://www.manning-sandbox.com/forum.jspa?forumID=302 MEAP Edition Manning Early Access Program Copyright 2007 Manning Publications For more information on this and other Manning titles go to www.manning.com Please post comments or corrections to the Author Online forum at http://www.manning-sandbox.com/forum.jspa?forumID=302 Contents Part I - Getting started 1. Introducing LINQ 2. C# and VB.NET language enhancements 3. LINQ building blocks - Part II - Querying objects in memory 4. Getting familiar with LINQ to Objects 5. Working with LINQ and DataSets 6. Beyond basic in-memory queries Part III - Manipulating XML 7. Introducing LINQ to XML 8. Querying and transforming XML 9. Common LINQ to XML scenarios Part IV - Mapping objects to relational databases 10. Getting started with LINQ to SQL 11. Retrieving objects efficiently 12. Advanced LINQ to SQL features Part V - LINQing it all together 13. Extending LINQ 14. LINQ in every layer Appendices Appendix A. The standard query operators Appendix B. Quick references for VB 8.0 and C# 2.0 features Features Appendix C. References Appendix D. Resources Please post comments or corrections to the Author Online forum at http://www.manning-sandbox.com/forum.jspa?forumID=302 1 Introducing LINQ Software is simple. It boils down to two things: code and data. Writing software is not so simple, and one of the major activities it involves is programming code to deal with data. To write code, we can choose from a variety of programming languages.
    [Show full text]