Deck 5: Arrays

Question 1

As with a while loop,when you use a for loop,you must be careful to stay within array bounds.

Answer 1

True

Question 2

In most modern programming languages,the highest subscript you should use with an 8-element array is ____ .

A) 6
B) 7
C) 8
D) 9

Answer 2

B

Question 3

A(n)____ is a contiguous series of variables in computer memory.

A) collection
B) matrix
C) vector
D) array

Answer 3

D

Question 4

Any array's subscripts are always a ____ of integers.

A) group
B) sequence
C) list
D) range

Question 5

Each individual element in an array has a unique ____ indicating how far away it is from the first element.

A) indicator
B) element
C) subscript
D) script

Question 6

The smaller the array,the more beneficial it becomes to exit the searching loop as soon as you find what you're looking for.

Question 7

The number of elements an array will hold is known as the ____ of the array.

A) bounds
B) limits
C) constraints
D) size

Question 8

The values stored in arrays should never be constants.

Question 9

All array elements have the same ____ name.

A) group
B) target
C) structure
D) collection

Question 10

All the variables in an array are differentiated with special numbers called ____.

A) scripts
B) subscripts
C) elements
D) pointers

Question 11

When you create parallel arrays,each array must be of the same data type.

Question 12

Each separate array variable is one ____ of the array.

A) element
B) aspect
C) index
D) member

Question 13

Subscripts begin with a value of ____.

A) -1
B) 0
C) 1
D) the number of elements in the array

Question 14

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

A) indicator
B) element
C) subscript
D) script

Question 15

Subscript values can be negative integers in all languages.

Question 16

If you assume an array's first subscript is 0,you will always be "off by one" in your array manipulation.

Question 17

You cannot initialize array elements when you declare the array.

Question 18

Each array element occupies an area in memory next to the others.

Question 19

In many languages,when you declare an array,a constant that represents the array size is automatically created for you.

Question 20

All the variables in an array have the same name and data type.

Question 21

An element in an array is 3 bytes long and there are 10 elements in the array.How big is the array?

A) 30 bytes
B) 10 bytes
C) 3 bytes
D) Not enough information to determine

Question 22

When declaring an array,depending on the syntax rules of the programming language you use,you place the subscript within parentheses or ____ following the group name.

A) asterisks
B) slashes
C) curly brackets
D) square brackets

Question 23

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

A) linear
B) quick
C) graphic
D) binary

Question 24

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

A) linear
B) binary
C) quick
D) Google

Question 25

In Java,C++,and C#,the for loop looks like the following:

A) for(dep = 0; dep++; dep < SIZE)
B) for(dep > SIZE; dep = 0; dep++)
C) for(dep = 0; dep < SIZE; dep++)
D) for(dep = SIZE,dep > 0,dep++)

Question 26

Learning to use arrays correctly can make many programming tasks far more ____ and professional.

A) confusing
B) efficient
C) slick
D) literal

Question 27

The ____ is a particularly convenient tool when working with arrays because you frequently need to process every element of an array from beginning to end.

A) binary search
B) range check
C) for loop
D) parallel array

Question 28

Leaving a loop as soon as a match is found improves the program's ____.

A) indirect relationships
B) logic
C) simplicity
D) efficiency

Question 29

Frequently,a flag holds a ____ value.

A) subscript
B) true or false
C) string
D) junk

Question 30

The relationship between an item's number and its price is a(n)____ relationship.

A) direct
B) indirect
C) hidden
D) clear

Question 31

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

A) constant
B) named constant
C) named declaration
D) named variable

Question 32

When you use parallel arrays,a ____ relates the arrays.

A) link
B) flag
C) subscript
D) script

Question 33

When you use parallel arrays,two or more arrays contain ____ data.

A) connected
B) equivalent
C) identical
D) related

Question 34

A ____ is a variable that you set to indicate whether some event has occurred.

A) handler
B) rudder
C) flag
D) bug

Question 35

Most programming languages use a statement similar to the following to declare a three-element array and assign values to it: ____

A) {20,30,40} = num someVals[3]
B) num someVals[3] = {someVals}
C) num someVals[] = 20,30,40
D) num someVals[3] = 20,30,40

Question 36

When working with arrays,you can use ____ in two ways: to hold an array's size and as the array values.

A) structures
B) literals
C) constants
D) strings

Question 37

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

A) variable
B) table
C) operator
D) field

Question 38

In ____ arrays,each element in one array is associated with the element in the same relative position in the other array.

A) parallel
B) related
C) grouped
D) combined

Question 39

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

A) bounds
B) scope
C) range
D) array

Question 40

What is TRUE about the following array? num someVals[5] = 1,3,5,7,9

A) someVals[1] has the value of 1
B) someVals[1] has the value of 3
C) There are 6 elements in this array.
D) someVals[3] has the value of 3

Question 41

The following pseudocode is not working correctly.The code should total the array elements.What code needs to be changed? start
Declarations
Num count = 0
Num total = 0
Num scores[6] = 2,4,6,8,10,12
While count < 6
Total = total + scores
Count = count + 1
Endwhile
Stop

A) Change the while to:
While count < 7
B) move count = count + 1 after the endwhile
C) Change the total = to:
Total = scores + scores[count]
D) Change the total = to:
Total = total + scores[count]

Question 42

The following pseudocode is not working correctly.How should the for loop be changed? start
Declarations
Num count = 0
Num scores[6] = 0,0,0,0,0,0
Num SIZE = 6
For count 0 to SIZE step
Input entry
Scores[count] = entry
Endfor
Stop

A) for count 0 to SIZE + 1 step 1
B) for count 0 to SIZE - 1 step 1
C) for count 0 to SIZE - 1 step
D) for count 0 to SIZE - 1 step -1

Question 43

You are working with parallel arrays to detemine the grade a student earns in a class.The student earns a grade based on the following: minimum points to earn an A is 900
Minimum points to earn a B is 800
Minimum points to earn a C is 700
Minimum points to earn a D is 600
Below 600 earns an F
The points array is defined as follows: num points[5] = 900,800,700,600,0
How should the grades array be defined?

A) num grades[5] = A,B,C,D,F
B) string grades[5] = "A","B","C","D","F"
C) num grades[5] = "A","B","C","D","F"
D) string grades[5] = "F","D","C","B","A"

Question 44

Write the pseudocode to define a five element array called "scores," and then allow a user to enter 5 scores and store them in the array using a while loop.

Question 45

Write the pseudocode to define and initialize a five element array called "evens," with even numbers from 2 to 10,and then find the total of the values in the array using a for loop.

Question 46

The following pseudocode checks if an item number is valid: start
Declarations
Num sub = 0
Num SIZE = 5
Num VALID_ITEM [5] = 27,53,84,89,95
String foundIt = "N"
Input item
While sub < SIZE
If item = VALID_ITEM[sub] then
FoundIt = "Y"
Endif
Sub = sub +1
Endwhile
If foundIt = "Y" then
Output "Valid item number"
Else
Output "Invalid item number"
Endif
Stop
Which while loop makes this more efficient?

A) while sub < SIZE AND foundIt = "N"
B) while sub < SIZE AND foundIt > "N"
C) while sub < SIZE AND foundIt = "Y"
D) The while loop is already efficient

Question 47

Define and initialize an array that contains the names of the days of the week.

Question 48

Write the pseudocode to define and initialize a four element array called "evens," with even numbers from 2 to 8,and then find the total of the values in the array using a while loop.

Question 49

Write the pseudocode to define a six element array called "scores," and then allow a user to enter 6 scores and store them in the array using a for loop.

Question 50

The following pseudocode is not working correctly.What kind of error is this? start
Declarations
Num count = 0
Num scores[6] = 0,0,0,0,0,0
Num SIZE = 6
For count 0 to SIZE step 1
Input entry
Scores[count] = entry
Endfor
Stop

A) out of memory
B) no match was found
C) out of bounds
D) bounded