Deck 4: Looping

Question 1

A loop control variable's value is tested to control the loop's execution.

Answer 1

True

Question 2

If you use the wrong comparison with the loop control variable, the body of the loop may never execute.

Answer 2

True

Question 3

You control a loop's repetitions by using either a counter or a(n) ____ value.

A)sentinel
C)end
B)standard
D)constant

Answer 3

A

Question 4

When the value of a loop control variable is not altered by arithmetic, but is instead altered by user input, this is known as a(n) ____ loop.

A)counted
C)indefinite
B)user-defined
D)definite

Question 5

You can use a while loop to execute a body of statements continuously as long as some condition continues to be false.

Question 6

In all structured loops, the ____ must provide either entry to, or exit from, the repeating structure.

A)loop-controlling statement
C)loop-controlling question
B)loop-directing question
D)loop-ending question

Question 7

Loops are frequently used to validate data.

Question 8

Program logic gets more complicated when you must use loops within loops, or ____ loops.

A)internal
C)stacked
B)grouped
D)nested

Question 9

If a data item is valid, this also means that it is correct.

Question 10

Reprompting for data validation of a user's input is only necessary once.

Question 11

A common mistake when programming with loops is neglecting to ____ the loop control variable.

A)reset
C)end
B)alter
D)output

Question 12

In all structured loops, the loop-controlling question provides the only entry to, or exit from, the repeating structure.

Question 13

The ____ variable is initialized before entering the loop.

A)loop-ending
C)interrupt control
B)ending control
D)loop control

Question 14

The body of a loop can contain only a limited number of statements.

Question 15

A(n) ____ is any numeric variable you use to count the number of times an event has occurred.

A)numerator
C)incremental value
B)counter
D)accumulator

Question 16

The decision that controls every loop is always based on a ____ comparison.

A)Boolean
C)standard
B)logical
D)regular

Question 17

In pseudocode, which statement is used to show the stopping point of a loop structure?

A)stop
C)endif
B)endwhile
D)exitwhile

Question 18

There is no benefit to changing a variable's value when it will never be used again during the current execution.

Question 19

A while loop can be used to code both definite and indefinite loops.

Question 20

When you write a loop, you must control the number of repetitions it performs; if you do not, you run the risk of creating a(n) ____ loop.

A)updating
C)infinite
B)eternal
D)long

Question 21

Loops are frequently used to ____ data; that is, to make sure it is meaningful and useful.

A)include
C)validate
B)declare
D)update

Question 22

The safest and clearest course of action is to assign the value ____ to accumulators before using them.

A)0
C)null
B)1
D)blank

Question 23

One appropriate action when invalid input data has been detected is to assign a(n) ____value and proceed.

A)error
C)decrement
B)random
D)default

Question 24

A(n) ____________________ loop has one entry point and one exit point.

Question 25

A loop for which the number of iterations is ____________________ is called a definite loop, or counted loop.

Question 26

Programmers use the term "____" to describe programs that are well designed, and easy to understand and maintain.

A)refined
C)stylish
B)graceful
D)elegant

Question 27

You usually use the for statement with ____ loops.

A)non-testing
C)definite
B)infinite
D)indefinite

Question 28

At the beginning of any method, it is the programmer's responsibility to ____ all variables that must start with a specific value.

A)internalize
C)clear
B)setup
D)initialize

Question 29

A(n) ____ is a number you use to increase a loop control variable on each pass through a loop.

A)step value
C)increment value
B)control value
D)step variable

Question 30

The value that signals a loop to stop is the ____________________ value.

Question 31

Most languages provide a built-in way to check whether entered data is ____.

A)numeric
C)alphanumeric
B)garbage
D)correct

Question 32

Programmers must be careful to use the correct ____ in the statement that controls a loop.

A)sequence
C)variable
B)comparison
D)identifier

Question 33

If a loop control variable is incremented by user input, it is a(n) ____________________ loop.

Question 34

A(n) ____________________ loop is a loop which has no end.

Question 35

Statements inside a loop that could be placed outside the loop make the loop ____.

A)more efficient
C)incorrect
B)cleaner
D)less efficient

Question 36

What is the correct data type of an accumulator variable used to store real estate sales totals?

A)string
C)text
B)numeric
D)character

Question 37

____ a data item means you override incorrect data by setting the variable to a specific value.

A)Forcing
C)Initializing
B)Incrementing
D)Terminating

Question 38

If you run the same application a second time, the variables might occupy different ____ from the ones they occupied during the first run.

A)virtual storage locations
C)virtual memory locations
B)physical memory locations
D)physical storage locations

Question 39

It is always a mistake to fail to initialize a loop's ____ variable.

A)operational
C)control
B)sequence
D)terminal

Question 40

The difference between an accumulator and a counter lies in the ____ that you add to the variable.

A)comments
C)value
B)updates
D)text

Question 41

____________________ reports show no individual item details.They show only totals.

Question 42

When one loop appears inside another, the loop that contains the other loop is the ____________________ loop.

Question 43

Setting a data item to a specific value to override incorrect input is called ____________________.

Question 44

Good ____________________ programs try to foresee all possible inconsistencies and errors.

Question 45

The amount by which a for loop control variable changes after the body executes is often called a(n) ____________________value.

Question 46

____________________ data can make parts of a program worthless.

Question 47

A(n) ____________________ is a variable used to gather or accumulate values.

Question 48

____________________ a user is a good way to ensure valid data, but it can be frustrating to a user if it continues indefinitely.

Question 49

A(n) ____________________ input is the first input that sets a loop control variable's first value before the loop begins.

Question 50

A(n) ____________________ loop can be used to code for definite and indefinite loops.