Deck 6: Arrays

Question 1

An array is a(n)____ of values in computer memory.

A) list
B) accumulation
C) set
D) record

Answer 1

A

Question 2

In all languages,subscript values must be sequential ____.

A) characters
B) fractions
C) real numbers
D) integers

Answer 2

D

Question 3

You use subscripts 1 through 10 to access the elements in a ten element array.

Answer 3

False

Question 4

The for loop is a good tool when working with arrays because you frequently need to process every element of an array from beginning to end.

Question 5

All array elements have the same group ____.

A) subscript
B) name
C) memory location
D) value

Question 6

The number of elements in an array is called the ____ of the array.

A) width
B) size
C) height
D) depth

Question 7

Providing array values is sometimes called ____.

A) creating the array
B) declaring the array
C) accumulating the array
D) populating the array

Question 8

A program contains an array that holds all the names of the days of the week.Which of the following is true?

A) The highest subscript is 6.
B) The highest subscript is 7.
C) The lowest subscript is 1.
D) The highest subscript is 12.

Question 9

Many newer programming languages such as C++,Java,and C# use subscript 1 to access the first element of the array.

Question 10

Declaring a named constant makes code easier to modify and understand.

Question 11

A parallel array is an array that stores another array in each element.

Question 12

A(n)____ is another name for a subscript.

A) pointer
B) sequence
C) index
D) place holder

Question 13

When you have a five element array and use subscript 6,your subscript is said to be out of bounds.

Question 14

Many newer programming languages such as C++,Java,and C# use the square bracket notation for arrays.

Question 15

Suppose that you have declared a numeric array named numbers,and two of its elements are numbers[1] and numbers[5].You know that ____.

A) numbers[1] is smaller than numbers[5]
B) there are exactly four elements between those two elements
C) numbers[5] is the last element in the array
D) there are exactly three elements between those two elements

Question 16

Array elements all have the same ____ in common.

A) pointer
B) memory location
C) value
D) data type

Question 17

An array can be used to replace ____.

A) records
B) methods
C) nested decisions
D) loops

Question 18

Arrays cannot be used if you need to search for a range of values.

Question 19

You can improve the efficiency of a program by leaving a loop as soon as a match is found in the array.

Question 20

Parallel arrays must contain the same data type.

Question 21

To search an array for a(n)____ match,you can store either the highest or lowest value of each range for comparison.

A) flag
B) index
C) subscript
D) range

Question 22

When a subscript is not within the range of acceptable subscripts,it is said to be ____.

A) a superscript
B) flagged
C) out of bounds
D) indexed

Question 23

The number of bytes in an array is always a multiple of the number of ____ in an array.

A) subscripts
B) elements
C) iterators
D) indexes

Question 24

Use a(n)____________________ to indicate the position of a particular item within an array.

Question 25

If you declare a variable to be Boolean,you can set its value to ____.

A) any number
B) true or false
C) any integer
D) 1 or -1

Question 26

In every programming language,when you access data stored in an array,you must use a ____ containing a value that accesses memory occupied by the array.

A) superscript
B) subscript
C) key
D) condition

Question 27

When working with arrays,you can use ____________________ in several ways: To hold the size of an array,as the array values,and as a subscript .

Question 28

A(n)____________________ is a variable set to indicate whether some event has occurred.

Question 29

When you search through a list from one end to the other,you are performing a ____.

A) linear search
B) binary search
C) quadratic search
D) single lookup

Question 30

Which statement is true of arrays?

A) Only whole numbers can be used as array subscripts.
B) Only whole numbers can be stored in arrays.
C) Arrays cause more work for the programmer,but allow faster program execution.
D) Array elements cannot be reset after the array is declared.

Question 31

One advantage to using a named constant is that the statement becomes ____.

A) self-perpetuating
B) self-documenting
C) self-referencing
D) self-mitigating

Question 32

A ____ relates parallel arrays.

A) superscript
B) key
C) subscript
D) postscript

Question 33

All array elements have the same ____________________ name,but each individual element also has a unique subscript indicating how far away it is from the first element.

Question 34

Parallel arrays are most useful when value pairs have a(n)____ relationship.

A) direct
B) indirect
C) linked
D) tiered

Question 35

A subscript,also called a(n)____________________,is a number that indicates the position of a particular item within an array.

Question 36

Every array has a(n)____ size.

A) infinite
B) finite
C) variable
D) constant

Question 37

A ____ search starts looking in the middle of a sorted list,and then determines whether it should continue higher or lower.

A) linear
B) binary
C) quadratic
D) divided

Question 38

The true benefit of using an array lies in your ability to use a ____ as a subscript to the array.

A) constant
B) loop
C) command
D) variable

Question 39

Besides making your code easier to modify,using a ____ makes the code easier to understand.

A) standard constant
B) named constant
C) literal constant
D) named variable

Question 40

Named ____ hold values that do not change during a program's execution.

A) constants
B) variables
C) objects
D) items

Question 41

Match each term with a statement below.


-Each separate item in an array

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 42

Match each term with a statement below.


-Starts looking in the middle of a sorted list,and then determines whether it should continue higher or lower

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 43

Match each term with a statement below.


-In this type of array,each element in one array is associated with the element in the same relative position in the other array

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 44

Match each term with a statement below.


-Can hold the size of an array

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 45

Match each term with a statement below.


-A variable that you set to indicate whether some event has occurred

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 46

Match each term with a statement below.


-A subscript that is within the range of acceptable subscripts

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 47

Consider a mail-order business in which customers get a discount based on the quantity they order.In writing a program to compute the discount based on a customer's order quantity,why is it not a good idea to construct an array with as many elements as a customer might want to order,and store the appropriate discount associated with each number?

Question 48

What is an advantage of using an array to match a value in a range of values?

Question 49

What happens when a beginning programmer forgets that array subscripts start with 0?

Question 50

Match each term with a statement below.


-A particularly convenient tool when working with arrays because you frequently need to process every element of an array

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 51

What happens if a subscript value is negative or higher than the highest allowed subscript?

Question 52

Why is it desirable to leave the loop as soon as a match is found?

Question 53

Match each term with a statement below.


-A series of values in computer memory

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 54

What are the steps to verify that an item number exists in an array? Provide an example.

Question 55

How can constants be used when working with arrays?

Question 56

Match each term with a statement below.


-Providing array values

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 57

Describe an array and provide an example of a real-life equivalent to an array.

Question 58

Match each term with a statement below.


-Starts searching through a list from one end to the other

A)linear search
B)in bounds
C)flag
D)parallel arrays
E)array
F)element
G)for loop
H)named constant
I)binary search
J)populating the array

Question 59

Why is it important to learn to use arrays properly?

Question 60

How do you reference the elements in an array?