Deck 10: Arrays

Question 1

A two-dimensional array resembles a table with rows and columns.

Answer 1

True

Question 2

In a two-dimensional array with r rows and c columns, the index values for the last row and last column would be (r, c).

Answer 2

False

Question 3

An array increases program efficiency by storing data on disk.

Answer 3

False

Question 4

The data used to initialize the elements of an array must be enclosed in brackets.

Question 5

A variable that is related to other variables and has the same name and data type is called a scalar variable.

Question 6

In a two-dimensional array the first row will have an index or subscript value of zero.

Question 7

Parallel arrays are two sets of data that are directly related to each other.

Question 8

To sort the data in an array in ascending order, you use the Array.Sequence( ) method.

Question 9

The most commonly used arrays are one-dimensional and two-dimensional.

Question 10

The subscript value of -1 can never be used to reference any element in a two-dimensional array.

Question 11

Each element of a two-dimensional array requires two subscripts to refer to that location.

Question 12

A pointer is a unique number that is used to reference or identify each variable in an array.

Question 13

The subscript value, variable or constant, must be enclosed in braces following the array name.

Question 14

In a two-dimensional array the first column will have an index or subscript value of zero.

Question 15

A simple variable is not related to any other memory variable.

Question 16

Parallel arrays are two or more arrays whose elements are related by their position in the array.

Question 17

To sort an array in descending order you would use the Array.Descending( ) method.

Question 18

The For Each…Next statement can be used to code a loop whose instructions are processed for each array variable in an array.

Question 19

The Length property of an array contains the number of elements in the array.

Question 20

Each of the elements in an array has the same data type.

Question 21

If an array is sorted in descending order, in which index value is the largest element located?

A) 0
B) 1
C) n-1
D) n

Question 22

You use the keyword Private to create a procedure-level structure variable.

Question 23

A module-level array is declared in the form's Declarations section.

Question 24

If an array is sorted in ascending order, in which index value is the largest element located?

A) 0
B) 1
C) n-1
D) n

Question 25

Variables included as members in a structure are called member variables.

Question 26

To reference a single variable in the first row and first column in a two-dimensional array you will use the ____ symbols.

A) (0, 0)
B) {0, 0}
C) (1, 1)
D) {1, 1}

Question 27

The following statement will declare an array that has ____ elements. Dim lakes(5)

A) 4
B) 5
C) 6
D) 7

Question 28

Consider the following array numbers( , )={{1,2},{3,4},{4,5},{6,7},{8,9}}. What value will the following expression yield for total? total = numbers(1, 1) + numbers(2,0)

A) 4
B) 6
C) 8
D) 12

Question 29

The data used to initialize the elements of an array are enclosed in ____.

A) [ ]
B) { }
C) ( )
D) " "

Question 30

The Structure statement ends with the Exit Structure clause.

Question 31

The following statement will declare an array. What is the index value for the first element? Dim lakes(5)

A) 0
B) 1
C) 4
D) 5

Question 32

Which column is referenced: sales(2, 3) ?

A) 1
B) 2
C) 3
D) 4

Question 33

To arrange the elements in an array in ascending order you use the ____ method.

A) Array.Arrange( )
B) Array.Ascending( )
C) Array.Sort( )
D) Array.Arrange()

Question 34

If an array is sorted in descending order, in which index value is the smallest element located?

A) 0
B) 1
C) n-1
D) n

Question 35

Which row is referenced: sales(2, 3) ?

A) 1
B) 2
C) 3
D) 4

Question 36

To sort a one-dimensional array in descending order, you first use the Array.Sort method and then use the ____ method.

A) Array.Arrange( )
B) Array.Reverse( )
C) Array.Sort( )
D) Array.Descending()

Question 37

Only variables can be included as members in a structure.

Question 38

Two arrays where information is directly related to each other are called ____ arrays.

A) direct
B) serial
C) sequential
D) parallel

Question 39

The individual variables in an array can be referenced by enclosing the subscript in ____.

A) [ ]
B) { }
C) ( )
D) " "

Question 40

Consider the following array: numbers( , )={{1,2},{3,4},{4,5},{6,7},{8,9}} What row index value is required to create this two-dimensional array?

A) 2
B) 3
C) 4
D) 5

Question 41

An array called state() is loaded as follows: Dim state()={"Ohio", "Michigan", "California", "Arizona"} What is the subscript value to reference Arizona?

A) 1
B) 2
C) 3
D) 4

Question 42

Which of the following shows the correct syntax for entering data into a two-dimensional array?

A) arrayname(rowSubscript, columnSubscript) = rowValue, columnValue
B) arrayname(rowSubscript, columnSubscript) = value
C) arrayname(rowSubscript, columnSubscript) = {rowValue, columnValue}
D) arrayname(rowSubscript, columnSubscript) = {value}

Question 43

Assigning initial values to an array is often referred to as ____ the array.

A) declaring
B) passing
C) grouping
D) populating

Question 44

Consider the following array: numbers( , )={{1,2},{3,4},{4,5},{6,7},{8,9}} What is the row index value of the largest value in this two-dimension array?

A) 2
B) 3
C) 4
D) 5

Question 45

An array is defined as follows: Dim numbers(3) As Integer How many elements does the array have?

A) 1
B) 2
C) 3
D) 4

Question 46

User-defined data types are also known as ____.

A) structures
B) groups
C) arrays
D) elements

Question 47

You can create your own data types in Visual Basic .NET using the ____ statement.

A) Array
B) Data Type
C) Structure
D) Group

Question 48

Which of the following correctly shows the syntax for storing data into a one-dimensional array?

A) arrayname = value
B) arrayname(subscript) = value
C) arrayname = {value}
D) arrayname(subscript) = {value}

Question 49

In a structure, each member variable's definition contains the keyword ____ followed by the name of the variable.

A) Private
B) Protected
C) Public
D) Friend

Question 50

An array called state() is loaded with the following statement: Dim state()={"Ohio", "Michigan", "California", "Arizona"} What state name will display when the statement Debug.WriteLine(state(1)) is executed?

A) Ohio
B) Michigan
C) California
D) Arizona