Adv VB.Net Ch 8 Quiz

10 Questions | By Tcarteronw | Updated: Mar 19, 2022 | Attempts: 224

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1.

When performing a table lookup, it is a good idea to include validation because _______.
- A.
  
  When looking for a table it is very likely that the table will not exist
- B.
  
  The user should be notified if there is no match found in the table
- C.
  
  Validation will add a new element to the table if no match is found
- D.
  
  It will cause the lookup to perform much faster than without validation
2.

__________ can be used to find a specific value in an array.
- A.
  
  The Find method of an array
- B.
  
  A table lookup
- C.
  
  The Locate.Item property
- D.
  
  A Case structure
3.

How many elements are contained in the array created with the following code? Dim strEmployee (25) As String
- A.
  
  0 (the code is incorrect to create an array)
- B.
  
  24
- C.
  
  25
- D.
  
  26
4.

Declare an array and specify the number of elements using _______.
- A.
  
  The ListCount property
- B.
  
  The ListIndex property
- C.
  
  An Array statement
- D.
  
  A Dim statement
5.

The individual variables in an array are accessed by their _______, which is their position in the array.
- A.
  
  Index
- B.
  
  ListCount property
- C.
  
  Subscript
- D.
  
  ItemCount property
6.

An array is a set of variables. Each individual variable is called _______.
- A.
  
  A subscript
- B.
  
  An element
- C.
  
  A subscripted variable
- D.
  
  An index
7.

_______ can be used when two subscripts are needed to identify tabular data, such as when data is arranged in rows and columns.
- A.
  
  Complex subscripts
- B.
  
  List boxes
- C.
  
  Text boxes
- D.
  
  Multidimensional arrays
8.

When you are working with an array, the easiest way to traverse the elements is to use the _______.
- A.
  
  If / Then statement
- B.
  
  Next statement
- C.
  
  For Each / Next statement
- D.
  
  Case structure
9.

A VB programmer can combine multiple fields of related data using a _______.
- A.
  
  DataType statement
- B.
  
  Structure statement
- C.
  
  For Each statement
- D.
  
  Public statement
10.

If an exception is thrown and the message, “Index was outside the bounds of the array.” displays, this indicates _______.
- A.
  
  The array is completely full of data
- B.
  
  The subscript is a value greater than the number of elements declared in the array's Dim statement
- C.
  
  The subscript has reached a value lower than the number of elements declared in the array's Dim statement
- D.
  
  The answer could be B or C