.Net - Important Interview Questions

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  1. OOPS Concepts
  2. SQL Concepts
  3. Web Concepts
  4. Windows Concepts
  5. Crystal Reports & Sql Reporting Services
  6. Why used Crystal reports in applications?
  7. Client-Server Concepts
  8. Remoting
  9. Web Services
  10. .Net Framework
  11. Application Domain
  12. Polymorphism
  13. Primary Interop Assemblies (PIA)
  14. What are System Exceptions & Application Exceptions?
  15. Where and why to use both exceptions?
  16. How to use self defined exceptions?
  17. What are Joins?
  18. How many types of Joins?
  19. Employee Manager Sql Query?
  20. Why to use Joins?
  21. What is Association and Aggregation?
  22. How to make connection and database on click of Button?
  23. How to interact with database on click of Button?
  24. What are Excel Interops?
  25. What are Office Web Components(OWC)?
  26. What are reflection?
  27. What are Recursion?
  28. Example to show recursion?
  29. Write a program to sort Array through recursion?
  30. How many types of locking?
  31. What are inclusive and exclusive locks?
  32. What are Indexes?
  33. How many types of Indexes?
  34. How many clustered and non clustered indexes we can have on a table?
  35. when to use clustered and non clustered indexes?
  36. Why we can only have 249 non clustered indexes?
  37. How many columns we can have in a table?
  38. What are Candidate keys?
  39. How many type of sorting algorithms are there?
  40. What is bubble sorting?
  41. What is viewstate?
  42. Viewstate is client side or server side?
  43. Have you seen Viewstate?
  44. What is use of viewstate?
  45. 2 pages with the same contents open from 2 different locations, where is viewstate? Whether its same for both or different?
  46. What is Page Life Cycle?
  47. Regarding projects in resume?
  48. What are windows connections?
  49. What are classes and objects?
  50. What is Framework 3.5?
  51. What is Threading?
  52. How  many types of threading?
  53. What is Deamon thread?
  54. What is deadlock in thread? Any Example, like 5 thread in parallel then how to know which will run?
  55. What is garbage collector?
  56. How garbage collector works?
  57. What is dispose and finalize?
  58. What is multithreading  and multitasking?
  59. What is unit testing? How unit testing can be done?
  60. Is unit testing done manual or through tool?
  61. What is the process of unit testing which you follow?
  62. What are thin and thick client application?
  63. What is difference between thin and thick client applications?
  64. How servers communicate with each other? 
  65. What are ASP.Net concepts?
  66. What is Object Pooling?
  67. What are Sessions?
  68. Where Sessions are maintained?
  69. How many types of sessions are there?
  70. What is difference between sessions and viewstate?
  71. What is virtual class?
  72. What are Abstract classes?
  73. What are Interfaces?
  74. What are static classes?

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