Visual Basic

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  1. Which method is used to explicitly dispose objects in VB.NET?
    A) Dispose()
    B) Destroy()
    C) Free()
    D) Release()
    Answer: A
  2. What does Option Strict On prevent?
    A) Early binding
    B) Implicit narrowing conversions
    C) Late binding
    D) Object creation
    Answer: B
  3. Which keyword defines an abstract method?
    A) Abstract
    B) MustOverride
    C) Override
    D) Virtual
    Answer: B
  4. Which keyword is used to prevent method overriding?
    A) NotInheritable
    B) NotOverridable
    C) Sealed
    D) Final
    Answer: B
  5. Which concept allows multiple methods with same name but different parameters?
    A) Overriding
    B) Inheritance
    C) Polymorphism
    D) Overloading
    Answer: D
  6. Which class provides access to environment variables?
    A) System.IO
    B) System.Environment
    C) System.Config
    D) System.Settings
    Answer: B
  7. Which property gets current directory?
    A) CurrentDir
    B) Directory
    C) Environment.CurrentDirectory
    D) Path.Current
    Answer: C
  8. Which method pauses execution for given time?
    A) Delay()
    B) Sleep()
    C) Wait()
    D) Hold()
    Answer: B
  9. Which keyword is used for asynchronous programming?
    A) Async
    B) Await
    C) Task
    D) All of these
    Answer: D
  10. Which object represents a thread?
    A) Thread
    B) Task
    C) Process
    D) Worker
    Answer: A
  11. Which namespace supports multithreading?
    A) System.IO
    B) System.Threading
    C) System.Tasks
    D) System.Process
    Answer: B
  12. Which method creates a file?
    A) File.Create()
    B) File.New()
    C) File.Open()
    D) File.Generate()
    Answer: A
  13. Which method reads entire file text?
    A) ReadAll()
    B) ReadFile()
    C) File.ReadAllText()
    D) File.GetText()
    Answer: C
  14. Which method writes text to file?
    A) File.Write()
    B) File.WriteAllText()
    C) File.Save()
    D) File.Append()
    Answer: B
  15. Which keyword is used to declare delegate?
    A) Delegate
    B) Event
    C) Handler
    D) Func
    Answer: A
  16. Which keyword is used to declare event?
    A) Delegate
    B) Event
    C) Raise
    D) Trigger
    Answer: B
  17. Which keyword raises event?
    A) RaiseEvent
    B) CallEvent
    C) FireEvent
    D) Invoke
    Answer: A
  18. Which keyword handles event?
    A) WithEvents
    B) Handles
    C) EventHandler
    D) Attach
    Answer: B
  19. Which class is base of all exceptions?
    A) Error
    B) Exception
    C) SystemError
    D) Fault
    Answer: B
  20. Which keyword ensures cleanup code execution?
    A) Catch
    B) Finally
    C) Try
    D) EndTry
    Answer: B
  21. Which keyword is used to inherit interface?
    A) Implements
    B) Inherits
    C) Extend
    D) Interface
    Answer: A
  22. Which keyword hides inherited member?
    A) Override
    B) Shadows
    C) Replace
    D) Hide
    Answer: B
  23. Which method compares strings?
    A) Compare()
    B) Equals()
    C) Match()
    D) EqualTo()
    Answer: B
  24. Which function converts to integer?
    A) ToInt()
    B) ConvertInt()
    C) CInt()
    D) ParseInt()
    Answer: C
  25. Which function converts to string?
    A) ToStr()
    B) Str()
    C) ToString()
    D) Convert()
    Answer: C
  26. Which keyword defines shared member?
    A) Static
    B) Shared
    C) Global
    D) Common
    Answer: B
  27. Which keyword is used for late binding?
    A) Object
    B) Dynamic
    C) Variant
    D) Dim
    Answer: A
  28. Which property gets application path?
    A) App.Path
    B) Application.Path
    C) Application.StartupPath
    D) Path.Current
    Answer: C
  29. Which method exits application?
    A) Close()
    B) End()
    C) Exit()
    D) Application.Exit()
    Answer: D
  30. Which control is used for progress bar?
    A) Progress
    B) Bar
    C) ProgressBar
    D) TrackBar
    Answer: C
  31. Which control shows images?
    A) ImageBox
    B) PictureBox
    C) PhotoBox
    D) ImgView
    Answer: B
  32. Which control is used for tabs?
    A) TabControl
    B) PageControl
    C) TabView
    D) MultiTab
    Answer: A
  33. Which control is used for toolbars?
    A) MenuStrip
    B) ToolStrip
    C) StatusStrip
    D) BarControl
    Answer: B
  34. Which control shows status messages?
    A) MenuStrip
    B) ToolStrip
    C) StatusStrip
    D) InfoBar
    Answer: C
  35. Which control shows data in grid?
    A) DataGrid
    B) DataGridView
    C) GridView
    D) TableView
    Answer: B
  36. Which property binds data source?
    A) DataSource
    B) BindSource
    C) Source
    D) DataBind
    Answer: A
  37. Which object connects to database?
    A) SqlCommand
    B) SqlConnection
    C) SqlReader
    D) SqlAdapter
    Answer: B
  38. Which object executes SQL command?
    A) SqlCommand
    B) SqlConnection
    C) SqlReader
    D) SqlAdapter
    Answer: A
  39. Which object fills dataset?
    A) SqlReader
    B) SqlAdapter
    C) SqlCommand
    D) SqlConnection
    Answer: B
  40. Which keyword defines namespace?
    A) Package
    B) Namespace
    C) Module
    D) Scope
    Answer: B
  41. Which keyword imports namespace?
    A) Include
    B) Import
    C) Imports
    D) Using
    Answer: C
  42. Which keyword defines property?
    A) Property
    B) GetSet
    C) Attribute
    D) Field
    Answer: A
  43. Which block returns property value?
    A) Set
    B) Get
    C) Return
    D) Value
    Answer: B
  44. Which block assigns property value?
    A) Set
    B) Get
    C) Value
    D) Assign
    Answer: A
  45. Which keyword is used for partial class?
    A) Partial
    B) Half
    C) Semi
    D) Part
    Answer: A
  46. Which keyword defines generic type?
    A) Of
    B) Generic
    C) Type
    D) Template
    Answer: A
  47. Which class represents list collection?
    A) ArrayList
    B) List
    C) Collection
    D) IList
    Answer: B
  48. Which method adds item to list?
    A) Add()
    B) Insert()
    C) Append()
    D) Include()
    Answer: A
  49. Which method removes item?
    A) Delete()
    B) Remove()
    C) Clear()
    D) Erase()
    Answer: B
  50. Which method clears collection?
    A) DeleteAll()
    B) RemoveAll()
    C) Clear()
    D) Reset()
    Answer: C

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