Coursera | Python Data Structures

Chapter 8 Quiz >> Python Data Structures

Chapter 8 Quiz >> Python Data Structures


1. How are “collection” variables different from normal variables?

  • Collection variables can only store a single value
  • Collection variables pull multiple network documents together
  • Collection variables can store multiple values in a single variable
  • Collection variables merge streams of output into a single stream

2.What are the Python keywords used to construct a loop to iterate through a list?

  • try / except
  • def / return
  • for / in
  • foreach / in

3. For the following list, how would you print out ‘Sally’?

friends = [ 'Joseph', 'Glenn', 'Sally' ]
  • print(friends[‘Sally’])
  • print(friends[2:1])
  • print friends[3]
  • print(friends[2])

4. What would the following Python code print out?

fruit = 'Banana'
fruit[0] = 'b'
print(fruit)
  • B
  • [0]
  • b
  • Banana
  • banana
  • Nothing would print – the program fails with a traceback error

5. Which of the following Python statements would print out the length of a list stored in the variable data?

  • print(strlen(data))
  • print(length(data))
  • print(data.length)
  • print(len(data))
  • print(data.length())
  • print(data.Len)

6. What type of data is produced when you call the range() function?

x = list(range(5))
  • A string
  • A list of integers
  • A boolean (true/false) value
  • A list of characters
  • A list of words

7. What does the following Python code print out?

a = [1, 2, 3]
b = [4, 5, 6]
c = a + b
print(len(c))
  • 21
  • 6
  • [4, 5, 6]
  • [1, 2, 3, 4, 5, 6]
  • [1, 2, 3]
  • 15

8. Which of the following slicing operations will produce the list [12, 3]?

t = [9, 41, 12, 3, 74, 15]
  • t[2:2]
  • t[:]
  • t[1:3]
  • t[2:4]
  • t[12:3]

9. What list method adds a new item to the end of an existing list?

  • add()
  • append()
  • index()
  • pop()
  • forward()
  • push()

10. What will the following Python code print out?

friends = [ 'Joseph', 'Glenn', 'Sally' ]
friends.sort()
print(friends[0])
  • friends
  • Glenn
  • Sally
  • Joseph

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