Question 1

"A"

Accepted Answer

A) True 
 B)False

Question 2

Loop statements allow a computer to make choices.

Accepted Answer

A) True 
 B)False

Question 3

The augmented assignment operations have a higher precedence than the standard assignment operation.

Accepted Answer

A) True 
 B)False

Question 4

The use of +=, -=, and *= are all examples of what type of operators?

Accepted Answer

A)   protracted assignment operators
B)   augmented assignment operators
C)   extended arithmetic operators
D)   overloaded mathematic operatorsE) All of the above
F) B) and D)

Question 5

Assuming that the value of x is 4, and the value of y is 6, what is the value of the following expression? (x - y) **2 > y

Accepted Answer

A)   True
B)   False
C)   Undefined
D)   TypeErrorE) A) and D)
F) None of the above

Question 6

A while loop can be used for a count-controlled loop.

Accepted Answer

A) True 
 B)False  True

Question 7

In a conditional iteration loop, such as a while loop, what is a sentinel value?

Accepted Answer

A)   A sentinel value is a user-provided input value that proceeds to the next loop.
B)   A sentinel value is a user-provided input value that changes the structure of the loop.
C)   A sentinel value is a special value provided by the user to terminate the loop.
D)   A sentinel value is a special value provided by the user to restart the loop.E) C) and D)
F) B) and C)

Question 8

In Python, = means equals, whereas == means assignment.

Accepted Answer

A) True 
 B)False

Question 9

The or operator returns True if and only if both of its operands are true, and returns False otherwise.

Accepted Answer

A) True 
 B)False

Question 10

What is a count controlled loop?

Accepted Answer

A)   It is a loop that counts iterations until a sentinel value is received.
B)   It is a loop that continues based on a certain time interval.
C)   It is a loop that prints out a count of values for the user.
D)   It is a loop that counts through a range of numbers to control when the loop ends.E) A) and D)
F) A) and C)

Question 11

Inside of a loop, after a termination condition has been met, what statement can be used to cause an exit from the loop and execute the remainder of the script?

Accepted Answer

A)   exit
B)   break
C)   quit
D)   haltE) A) and B)
F) All of the above B

Question 12

The if-else statement is the most common type of selection statement.

Accepted Answer

A) True 
 B)False

Question 13

An off-by-one error is an example of what type of error in programming?

Accepted Answer

A)   logic error
B)   syntax error
C)   type error
D)   input errorE) A) and C)
F) A) and B)

Question 14

A condition expresses a hypothesis about the state of its world at that point in time.

Accepted Answer

A) True 
 B)False  True

Question 15

In programming, what is a prototype?

Accepted Answer

A)   It is a rough draft of a program.
B)   It is a program in final stages of development.
C)   It is a program statement that builds a module.
D)   It is a production-ready program.E) None of the above
F) A) and C)

Question 16

If A is True, what will the statement "not A" return?

Accepted Answer

A)   Undefined
B)   True
C)   False
D)   BooleanErrorE) C) and D)
F) A) and D)

Question 17

When using the range function, what effect does the specification of a third argument have?

Accepted Answer

A)   The third argument is used as the starting point for the range function.
B)   The third argument specifies a step value to be used in the range.
C)   The third argument declares an exponential value the numbers will be raised to.
D)   The third argument is simply included in the sequence, assuming it wasn't already in the range.E) All of the above
F) B) and C)

Question 18

What is the minimum number of spaces that should be used to create an indented statement?

Accepted Answer

A)   one space
B)   two spaces
C)   three spaces
D)   four spacesE) A) and B)
F) A) and C)

Question 19

Simple Boolean expressions consist of the Boolean values True or False, variables bound to those values, function calls that return Boolean values, or comparisons.

Accepted Answer

A) True 
 B)False

Question 20

For the most part, off-by-one errors result when the programmer incorrectly specifies the lower bound of the loop.

Accepted Answer

A) True 
 B)False

Exam 3: Loops and Selection Statements

"A"

Correct AnswerverifiedShow Answer

Loop statements allow a computer to make choices.

Correct AnswerverifiedShow Answer

The augmented assignment operations have a higher precedence than the standard assignment operation.

Correct AnswerverifiedShow Answer

The use of +=, -=, and *= are all examples of what type of operators?

Correct AnswerverifiedShow Answer

Assuming that the value of x is 4, and the value of y is 6, what is the value of the following expression? (x - y) **2 > y

Correct AnswerverifiedShow Answer

A while loop can be used for a count-controlled loop.

Correct AnswerverifiedTrue

In a conditional iteration loop, such as a while loop, what is a sentinel value?

Correct AnswerverifiedShow Answer

In Python, = means equals, whereas == means assignment.

Correct AnswerverifiedShow Answer

The or operator returns True if and only if both of its operands are true, and returns False otherwise.

Correct AnswerverifiedShow Answer

What is a count controlled loop?

Correct AnswerverifiedShow Answer

Inside of a loop, after a termination condition has been met, what statement can be used to cause an exit from the loop and execute the remainder of the script?

Correct AnswerverifiedB

The if-else statement is the most common type of selection statement.

Correct AnswerverifiedShow Answer

An off-by-one error is an example of what type of error in programming?

Correct AnswerverifiedShow Answer

A condition expresses a hypothesis about the state of its world at that point in time.

Correct AnswerverifiedTrue

In programming, what is a prototype?

Correct AnswerverifiedShow Answer

If A is True, what will the statement "not A" return?

Correct AnswerverifiedShow Answer

When using the range function, what effect does the specification of a third argument have?

Correct AnswerverifiedShow Answer

What is the minimum number of spaces that should be used to create an indented statement?

Correct AnswerverifiedShow Answer

Simple Boolean expressions consist of the Boolean values True or False, variables bound to those values, function calls that return Boolean values, or comparisons.

Correct AnswerverifiedShow Answer

For the most part, off-by-one errors result when the programmer incorrectly specifies the lower bound of the loop.

Correct AnswerverifiedShow Answer

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True

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B

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True

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