Visual Basic MCQs: Test Your Proficiency in Visual Basic Programming

71

What is the result of the following statements?


Dim strCities() As String = {"Bombay", "Chennai", "Ladakh", "Tamil Nadu"}
strCities(2)="Kolkata"

A) Compilation Error B) Runtime Error C) strCity array is {"Bombay", "Ladakh", "Kolkata","Tamil Nadu"} D) strCity array is {"Bombay", "Chennai","Kolkata", "Tamil Nadu"}

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Answer & Solution

Answer: Option D

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72

Which of the following is false?

A) The sequence of the arguments listed in the Call statement should agree with the sequence of the parameters listed in the receiving procedure's header. B) The data type of each argument in the Call statement should match the data type of its corresponding parameter in the procedure header. C) The name of each argument in the Call statement should be identical to the name of its corresponding parameter in the procedure header. D) When you pass information to a procedure by value, the procedure stores a copy of each value it receives in a separate memory location.

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Answer & Solution

Answer: Option C

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73

What output will be returned if the following Visual Basic code is executed?


strVisualBasic = "Example, VB.Net"
intCharIndex = strVisualBasic.IndexOf("VB")

A) 8 B) 9 C) False D) True

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Answer & Solution

Answer: Option B

Solution:

The IndexOf function in Visual Basic is used to find the first occurrence of a specific string within another string.
In this code, strVisualBasic is assigned the string "Example, VB.Net".
The line intCharIndex = strVisualBasic.IndexOf("VB") attempts to find the starting position of the substring "VB" within strVisualBasic.
The IndexOf function returns the index (position) of the first character of the found substring. The index starts at 0.
In the string "Example, VB.Net", "VB" starts at the 9th position (remember counting starts at 0).
'E' is at index 0, 'x' is at index 1, 'a' is at index 2, 'm' is at index 3, 'p' is at index 4, 'l' is at index 5, 'e' is at index 6, ',' is at index 7, ' ' is at index 8, 'V' is at index 9.
Therefore, intCharIndex will be assigned the value 9.
So the correct answer is Option B: 9

74

Files that are read by computer are called as . . . . . . . .

A) Input file B) Output file C) Random access file D) Sequential file

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Answer & Solution

Answer: Option A

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75

Using a named constant is advantageous because to change a value in future, change . . . . . . . .

A) The value in the Const statement B) The value of the variable wherever it appears in the program C) The value of the variable anywhere in the program D) The value of the variable in one of the procedures in the program

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Answer & Solution

Answer: Option A

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76

A . . . . . . . . displays a list of choices.

A) List box B) Display box C) Choice box D) Check box

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Answer & Solution

Answer: Option A

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77

The text box's . . . . . . . . event procedure prevents user from entering a specified character.

A) KeyPress B) check C) checkchar D) checkinput

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Answer & Solution

Answer: Option A

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78

What will be the output of the following Visual Basic code?


Dim intScores As Integer = {78, 83, 75, 90}
Array.Sort(intScores)
Array.Reverse(intScores)

A) 78, 83, 75,90 B) 75,78, 83,90 C) 78,75,83,90 D) 90,83,78,75

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Answer & Solution

Answer: Option D

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79

Progress bar is always work with . . . . . . . .control.

A) text box B) timer C) menu D) none of these.

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Answer & Solution

Answer: Option B

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80

Data in an array can be distinguished using . . . . . . . . number.

A) Reference B) Subscript C) Array D) ID

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Answer & Solution

Answer: Option B

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