Chapter 5 (Quiz Answers) | Week-7 | Programming for Everybody (Getting Started with Python) By Coursera

Chapter 5 (Quiz Answers) | Week-7 | Programming for Everybody (Getting Started with Python) By Coursera

Coursera
Programming for Everybody (Getting Started with Python)
Week 7
Chapter 5
Graded Quiz • 30 min

1. What is wrong with this Python loop:
n = 5
while n > 0 :
print(n)
print('All done')
  • This loop will run forever
  • The print(‘All done’) statement should be indented four spaces
  • There should be no colon on the while statement
  • while is not a Python reserved word

2. What does the break statement do?
  • Exits the program
  • Resets the iteration variable to its initial value
  • Jumps to the “top” of the loop and starts the next iteration
  • Exits the currently executing loop


3.What does the continue statement do?
  • Resets the iteration variable to its initial value
  • Jumps to the “top” of the loop and starts the next iteration
  • Exits the currently executing loop
  • Exits the program



4. What does the following Python program print out?
tot = 0 
for i in [5, 4, 3, 2, 1] :
tot = tot + 1
print(tot)
  • 0
  • 5
  • 10
  • 15

5. What is the iteration variable in the following Python code:
friends = ['Joseph', 'Glenn', 'Sally']
for friend in friends :
print('Happy New Year:', friend)
print('Done!')
  • friend
  • Sally
  • Glenn
  • Joseph



6. What is a good description of the following bit of Python code?
zork = 0
for thing in [9, 41, 12, 3, 74, 15] :
zork = zork + thing
print('After', zork)
  • Find the smallest item in a list
  • Count all of the elements in a list
  • Find the largest item in a list
  • Sum all the elements of a list


7. What will the following code print out?
smallest_so_far = -1
for the_num in [9, 41, 12, 3, 74, 15] :
if the_num < smallest_so_far :
smallest_so_far = the_num
print(smallest_so_far)
Hint: This is a trick question and most would say this code has a bug – so read carefully
  • -1
  • 74
  • 42
  • 3

8. What is a good statement to describe the is operator as used in the following if statement:
if smallest is None :
smallest = value
  • Is true if the smallest variable has a value of -1
  • matches both type and value
  • The if statement is a syntax error
  • Looks up ‘None’ in the smallest variable if it is a string


9. Which reserved word indicates the start of an “indefinite” loop in Python?
  • while
  • for
  • indef
  • break
  • def


10. How many times will the body of the following loop be executed?
n = 0
while n > 0 :
print('Lather')
print('Rinse')
print('Dry off!')
  • 1
  • This is an infinite loop
  • 0
  • 5


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