Question 1

In a nested loop,the inner loop goes through all of its iterations for each iteration of the outer loop.

Accepted Answer

A) True 
 B)False  True

Question 2

The integrity of a program's output is only as good as the integrity of its input.
For this reason,the program should discard input that is invalid and prompt the user to enter valid data.

Accepted Answer

A) True 
 B)False  True

Question 3

Both of the following for clauses would generate the same number of loop iterations.
for num in range(4):
for num in range(1,5):

Accepted Answer

A) True 
 B)False  True

Question 4

What will be displayed after the following code is executed?

Accepted Answer

A)  counting counting counting counting 
B)  counting
Counting
Counting
Counting 
C)  counting
Counting 
D)  counting
Counting
Counting 
A)  counting counting counting counting 
B)  counting
Counting
Counting
Counting 
C)  counting
Counting 
D)  counting
Counting
Counting

Question 5

A variable used to keep a running total is called a(n)

Accepted Answer

A)  accumulator 
B)  total 
C)  running total 
D)  summer 
A)  accumulator 
B)  total 
C)  running total 
D)  summer

Question 6

A(n)__________ validation loop is sometimes called an error trap or an error handler.

Accepted Answer

The answer of A(n)__________ validation loop is sometimes called an...

Question 7

To get the total number of iterations in a nested loop,add the number of iterations in the inner loop to the number in the outer loop.

Accepted Answer

A) True 
 B)False

Question 8

A while loop is called a pretest loop because the condition is tested after the loop has had one iteration.

Accepted Answer

A) True 
 B)False

Question 9

When will the following loop terminate?
While keep_on_going != 999:

Accepted Answer

A)  when keep_on_going refers to a value less than 999 
B)  when keep_on_going refers to a value greater than 999 
C)  when keep_on_going refers to a value equal to 999 
D)  when keep_on_going refers to a value not equal to 999 
A)  when keep_on_going refers to a value less than 999 
B)  when keep_on_going refers to a value greater than 999 
C)  when keep_on_going refers to a value equal to 999 
D)  when keep_on_going refers to a value not equal to 999

Question 10

What are the values that the variable num contains through the iterations of the following for loop?
For num in range(2,9,2):

Accepted Answer

A)  2, 3, 4, 5, 6, 7, 8, 9 
B)  2, 5, 8 
C)  2, 4, 6, 8 
D)  1, 3, 5, 7, 9 
A)  2, 3, 4, 5, 6, 7, 8, 9 
B)  2, 5, 8 
C)  2, 4, 6, 8 
D)  1, 3, 5, 7, 9

Question 11

The following for loop iterates ___________ times to draw a square.
for x in range(4):
turtle.forward(200)
turtle.right(90)

Accepted Answer

The answer of The following for loop iterates ___________ times...

Question 12

Which of the following represents an example to calculate the sum of numbers (that is,an accumulator),given that the number is stored in the variable number and the total is stored in the variable total?

Accepted Answer

A)  total + number = total 
B)  number += number 
C)  total += number 
D)  total = number 
A)  total + number = total 
B)  number += number 
C)  total += number 
D)  total = number

Question 13

A(n)__________ total is a sum of numbers that accumulates with each iteration of the loop.

Accepted Answer

The answer of A(n)__________ total is a sum of numbers...

Question 14

In a flowchart,both the decision structure and the repetition structure use the diamond symbol to represent the condition that is tested.

Accepted Answer

A) True 
 B)False

Question 15

In Python,the variable in the for clause is referred to as the __________ because it is the target of an assignment at the beginning of each loop iteration.

Accepted Answer

A)  target variable 
B)  loop variable 
C)  for variable 
D)  count variable 
A)  target variable 
B)  loop variable 
C)  for variable 
D)  count variable

Question 16

What will be displayed after the following code is executed?
total $ =0 $ 
for count in range $ (4,6): $ 
$\quad$total $ += $ count 
$\quad$print (total)

Accepted Answer

A)  4
9 
B)  4
5
6 
C)  4
5 
D)  9 
A)  4
9 
B)  4
5
6 
C)  4
5 
D)  9

Question 17

Functions can be called from statements in the body of a loop and loops can be called from within the body of a function.

Accepted Answer

A) True 
 B)False

Question 18

What type of loop structure repeats the code based on the value of Boolean expression?

Accepted Answer

A)  condition-controlled loop 
B)  number-controlled loop 
C)  count-controlled loop 
D)  Boolean-controlled loop 
A)  condition-controlled loop 
B)  number-controlled loop 
C)  count-controlled loop 
D)  Boolean-controlled loop

Question 19

In Python,a comma-separated sequence of data items that are enclosed in a set of brackets is called

Accepted Answer

A)  sequence 
B)  variable 
C)  value 
D)  list 
A)  sequence 
B)  variable 
C)  value 
D)  list

Question 20

In Python,an infinite loop usually occurs when the computer accesses an incorrect memory address.

Accepted Answer

A) True 
 B)False

In a nested loop,the inner loop goes through all of its iterations for each iteration of the outer loop.

The integrity of a program's output is only as good as the integrity of its input. For this reason,the program should discard input that is invalid and prompt the user to enter valid data.

Both of the following for clauses would generate the same number of loop iterations. for num in range(4): for num in range(1,5):

What will be displayed after the following code is executed?

A variable used to keep a running total is called a(n)

A(n)__________ validation loop is sometimes called an error trap or an error handler.

To get the total number of iterations in a nested loop,add the number of iterations in the inner loop to the number in the outer loop.

A while loop is called a pretest loop because the condition is tested after the loop has had one iteration.

When will the following loop terminate? While keep_on_going != 999:

What are the values that the variable num contains through the iterations of the following for loop? For num in range(2,9,2):

The following for loop iterates ___________ times to draw a square. for x in range(4): turtle.forward(200) turtle.right(90)

Which of the following represents an example to calculate the sum of numbers (that is,an accumulator),given that the number is stored in the variable number and the total is stored in the variable total?

A(n)__________ total is a sum of numbers that accumulates with each iteration of the loop.

In a flowchart,both the decision structure and the repetition structure use the diamond symbol to represent the condition that is tested.

In Python,the variable in the for clause is referred to as the __________ because it is the target of an assignment at the beginning of each loop iteration.

What will be displayed after the following code is executed? total $=0$ for count in range $(4,6):$ $\quad$ total $+=$ count $\quad$ print (total)

Functions can be called from statements in the body of a loop and loops can be called from within the body of a function.

What type of loop structure repeats the code based on the value of Boolean expression?

In Python,a comma-separated sequence of data items that are enclosed in a set of brackets is called

In Python,an infinite loop usually occurs when the computer accesses an incorrect memory address.

Introduction to Computers and Programming

Input, Processing, and Output

Decision Structures and Boolean Logic

Functions

Files and Exceptions

Lists and Tuples

More About Strings

Dictionaries and Sets

Classes and Object-Oriented Programming

Inheritance

Recursion

Gui Programming

Filters

Exam 4: Repetition Structures

In a nested loop,the inner loop goes through all of its iterations for each iteration of the outer loop.

The integrity of a program's output is only as good as the integrity of its input. For this reason,the program should discard input that is invalid and prompt the user to enter valid data.

Both of the following for clauses would generate the same number of loop iterations. for num in range(4): for num in range(1,5):

What will be displayed after the following code is executed?

A variable used to keep a running total is called a(n)

A(n)__________ validation loop is sometimes called an error trap or an error handler.

To get the total number of iterations in a nested loop,add the number of iterations in the inner loop to the number in the outer loop.

A while loop is called a pretest loop because the condition is tested after the loop has had one iteration.

When will the following loop terminate? While keep_on_going != 999:

What are the values that the variable num contains through the iterations of the following for loop? For num in range(2,9,2):

The following for loop iterates ___________ times to draw a square. for x in range(4): turtle.forward(200) turtle.right(90)

Which of the following represents an example to calculate the sum of numbers (that is,an accumulator),given that the number is stored in the variable number and the total is stored in the variable total?

A(n)__________ total is a sum of numbers that accumulates with each iteration of the loop.

In a flowchart,both the decision structure and the repetition structure use the diamond symbol to represent the condition that is tested.

In Python,the variable in the for clause is referred to as the __________ because it is the target of an assignment at the beginning of each loop iteration.

What will be displayed after the following code is executed? total =0 =0 =0 for count in range (4,6): (4,6): (4,6): \quad total += += += count \quad print (total)

Functions can be called from statements in the body of a loop and loops can be called from within the body of a function.

What type of loop structure repeats the code based on the value of Boolean expression?

In Python,a comma-separated sequence of data items that are enclosed in a set of brackets is called

In Python,an infinite loop usually occurs when the computer accesses an incorrect memory address.

Introduction to Computers and Programming

Input, Processing, and Output

Decision Structures and Boolean Logic

Functions

Files and Exceptions

Lists and Tuples

More About Strings

Dictionaries and Sets

Classes and Object-Oriented Programming

Inheritance

Recursion

Gui Programming

Filters

What will be displayed after the following code is executed? total $=0$ for count in range $(4,6):$ $\quad$ total $+=$ count $\quad$ print (total)