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Question-1. What is VBScript?
Answer-1: VBScript (Visual Basic Scripting Edition) is a lightweight scripting language developed by Microsoft for automating tasks and creating dynamic web pages.
Question-2. How is VBScript different from Visual Basic?
Answer-2: VBScript is a lightweight scripting language with fewer features compared to Visual Basic, designed primarily for scripting web pages and Windows tasks.
Question-3. What are the data types available in VBScript?
Answer-3: VBScript has only one data type: Variant, which can contain different types of data, including numbers, strings, and dates.
Question-4. How do you declare a variable in VBScript?
Answer-4: Variables are declared using the Dim, Public, or Private keywords. Example: Dim myVar.
Question-5. How do you create a function in VBScript?
Answer-5: Functions are created using the Function keyword. Example: Function MyFunction() ... End Function.
Question-6. What is the difference between Function and Sub in VBScript?
Answer-6: Function returns a value, while Sub performs an operation without returning a value.
Question-7. How do you handle errors in VBScript?
Answer-7: Use On Error Resume Next to handle errors gracefully. Use On Error GoTo 0 to stop handling errors.
Question-8. What is the purpose of the Set keyword in VBScript?
Answer-8: The Set keyword is used to assign object references to variables. Example: Set obj = CreateObject("Scripting.FileSystemObject").
Question-9. What is Option Explicit in VBScript?
Answer-9: Option Explicit forces the declaration of all variables, helping to avoid typographical errors in variable names.
Question-10. How do you concatenate strings in VBScript?
Answer-10: Strings are concatenated using the & operator. Example: result = "Hello" & " World".
Question-11. What are arrays in VBScript?
Answer-11: Arrays are used to store multiple values in a single variable. They can be declared using Dim myArray(10).
Question-12. What is a Dictionary object in VBScript?
Answer-12: A Dictionary object stores key-value pairs, providing a way to retrieve values using keys.
Question-13. How do you create an object in VBScript?
Answer-13: Use the CreateObject function to create objects. Example: Set obj = CreateObject("Scripting.FileSystemObject").
Question-14. What is the For Each loop in VBScript?
Answer-14: The For Each loop iterates through all elements in a collection or array.
Question-15. What is a While loop in VBScript?
Answer-15: A While loop repeats a block of code as long as a specified condition is True.
Question-16. How do you get the length of a string in VBScript?
Answer-16: Use the Len function to get the length of a string. Example: length = Len("Hello").
Question-17. How do you convert a string to uppercase in VBScript?
Answer-17: Use the UCase function to convert a string to uppercase. Example: upper = UCase("hello").
Question-18. How do you check if a file exists in VBScript?
Answer-18: Use the FileSystemObject and its FileExists method. Example: objFSO.FileExists("C:\example.txt").
Question-19. What is the purpose of the Date function in VBScript?
Answer-19: The Date function returns the current system date.
Question-20. How do you generate a random number in VBScript?
Answer-20: Use the Rnd function. Example: randomValue = Rnd.
Question-21. What are the limitations of VBScript?
Answer-21: VBScript is platform-dependent, lacks modern features, and is primarily used in older environments like classic ASP and Windows scripting.
Question-22. How do you write to a file in VBScript?
Answer-22: Use the FileSystemObject and its Write or WriteLine methods to write to a file.
Question-23. How do you read from a file in VBScript?
Answer-23: Use the FileSystemObject and its OpenTextFile method to read from a file.
Question-24. What is the purpose of the IsArray function in VBScript?
Answer-24: The IsArray function checks if a variable is an array. Example: result = IsArray(myVar).
Question-25. How do you sort an array in VBScript?
Answer-25: Use the Sort method from a custom implementation or COM objects, as VBScript lacks built-in array sorting.
Question-26. What is the purpose of the CStr function in VBScript?
Answer-26: The CStr function converts a value to a string.
Question-27. How do you handle date calculations in VBScript?
Answer-27: Use date functions like DateAdd, DateDiff, and DatePart for date calculations.
Question-28. How do you create a dynamic array in VBScript?
Answer-28: Use the ReDim keyword to resize an array. Example: ReDim myArray(5).
Question-29. What is the purpose of the Mid function in VBScript?
Answer-29: The Mid function extracts a substring from a string. Example: subStr = Mid("Hello", 2, 3).
Question-30. How do you exit a loop in VBScript?
Answer-30: Use the Exit For or Exit Do statements to exit loops.
Question-31. How do you split a string in VBScript?
Answer-31: Use the Split function to split a string into an array based on a delimiter. Example: result = Split("a,b,c", ",").
Question-32. What is the difference between Do While and Do Until in VBScript?
Answer-32: Do While runs as long as the condition is true, while Do Until runs until the condition becomes true.
Question-33. How do you check the type of a variable in VBScript?
Answer-33: Use the VarType function to get the variable type. Example: typeCode = VarType(myVar).
Question-34. What is Err object in VBScript?
Answer-34: The Err object provides information about runtime errors, including error number and description.
Question-35. What is a Class in VBScript?
Answer-35: A Class in VBScript allows defining objects with methods and properties.
Question-36. What is the IsObject function in VBScript?
Answer-36: The IsObject function checks if a variable is an object. Example: result = IsObject(myVar).
Question-37. How do you remove a key from a Dictionary object in VBScript?
Answer-37: Use the Remove method. Example: dict.Remove("key").
Question-38. How do you declare constants in VBScript?
Answer-38: Constants are declared using the Const keyword. Example: Const PI = 3.14.
Question-39. How do you handle whitespace in VBScript?
Answer-39: Use functions like Trim, LTrim, and RTrim to remove whitespace.
Question-40. What is the difference between WScript and Cscript?
Answer-40: WScript is the Windows Script Host command for graphical output, while Cscript is the command-line version.
Question-41. How do you execute a shell command in VBScript?
Answer-41: Use the WScript.Shell object and its Run method. Example: CreateObject("WScript.Shell").Run("cmd.exe").
Question-42. What is Exit Sub and Exit Function in VBScript?
Answer-42: Exit Sub exits a Sub procedure, while Exit Function exits a Function procedure.
Question-43. How do you create a COM object in VBScript?
Answer-43: Use the CreateObject function. Example: Set obj = CreateObject("Excel.Application").
Question-44. How do you check if a variable is empty in VBScript?
Answer-44: Use the IsEmpty function. Example: result = IsEmpty(myVar).
Question-45. What is the InputBox function in VBScript?
Answer-45: The InputBox function displays a prompt for the user to input a value.
Question-46. How do you display a message box in VBScript?
Answer-46: Use the MsgBox function. Example: MsgBox "Hello World".
Question-47. How do you handle multiple conditions in VBScript?
Answer-47: Use conditional statements like If...Then...Else or Select Case.
Question-48. How do you declare a two-dimensional array in VBScript?
Answer-48: Use the Dim keyword with two sets of bounds. Example: Dim myArray(3, 3).
Question-49. How do you calculate the square root of a number in VBScript?
Answer-49: Use the Sqr function. Example: result = Sqr(16).
Question-50. How do you terminate a VBScript program?
Answer-50: Use the WScript.Quit method to terminate a script.
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