Question 1

A set is a built-in Python collection type.

Accepted Answer

A) True 
 B)False  True

Question 2

When a for loop is used to iterate over a collection, which statement is true?

Accepted Answer

A)  list items are visited from last to first 
B)  items in a list are visited in a random order 
C)  items in a sorted collection are visited in ascending order 
D)  items in a dictionary are visited in descending order 
A)  list items are visited from last to first 
B)  items in a list are visited in a random order 
C)  items in a sorted collection are visited in ascending order 
D)  items in a dictionary are visited in descending order C

Question 3

In Python, modules and methods are the smallest units of abstraction, classes are the next in size, and functions are the largest.

Accepted Answer

A) True 
 B)False  False

Question 4

Which real-world item best represents a hierarchical collection?

Accepted Answer

A)  a queue of customers 
B)  wiring diagrams 
C)  a box of legos 
D)  a family tree 
A)  a queue of customers 
B)  wiring diagrams 
C)  a box of legos 
D)  a family tree

Question 5

If you clone an object using the = operator (as in myList=list(yourList) ), the is operator returns True while the == operator returns False.

Accepted Answer

A) True 
 B)False

Question 6

When using a for loop to iterate over a list, the items are visited in no particular order.

Accepted Answer

A) True 
 B)False

Question 7

What is the value of myObject after the following code executes?
YourObject = "Hi"
MyObject = tuple(yourObject)

Accepted Answer

A)  ('H', 'i') 
B)  [ "H", "i" ] 
C)  (Hi) 
D)  ("Hi") 
A)  ('H', 'i') 
B)  [ "H", "i" ] 
C)  (Hi) 
D)  ("Hi")

Question 8

Which operator is used to obtain a string representation of a collection?

Accepted Answer

A)  len 
B)  char 
C)  str 
D)  in 
A)  len 
B)  char 
C)  str 
D)  in

Question 9

A tuple is an immutable collection type.

Accepted Answer

A) True 
 B)False

Question 10

Use the & operator to concatenate two collections.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is an unordered collection?

Accepted Answer

A)  string 
B)  stack 
C)  dictionary 
D)  queue 
A)  string 
B)  stack 
C)  dictionary 
D)  queue

Question 12

What is the value of c after the following code executes?
A = [ 10, 20, 30 ]
B = [ 40, 50, 60 ]
C = a + b

Accepted Answer

A)  [ 50, 70, 90 ] 
B)  {[ 10, 20, 30 ], [ 40, 50, 60 ]} 
C)  [ 10, 20, 30, 40, 50, 60 ] 
D)  ([ 10, 40 ], [ 20, 50 ], [ 30, 60 ]) 
A)  [ 50, 70, 90 ] 
B)  {[ 10, 20, 30 ], [ 40, 50, 60 ]} 
C)  [ 10, 20, 30, 40, 50, 60 ] 
D)  ([ 10, 40 ], [ 20, 50 ], [ 30, 60 ])

Question 13

The map, filter, and reduce functions can only be used on list collections.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is a special case of type conversion, where the two collections are of the same type?

Accepted Answer

A)  replacing 
B)  copying 
C)  duplicating 
D)  cloning 
A)  replacing 
B)  copying 
C)  duplicating 
D)  cloning

Question 15

What is the value of aList after the following code is executed?
AList = [ 10, 20, 30 ]
AList.pop()

Accepted Answer

A)  [ 10, 20, 30 ] 
B)  [ 10,20 ] 
C)  [ ] 
D)  [ 20, 30 ] 
A)  [ 10, 20, 30 ] 
B)  [ 10,20 ] 
C)  [ ] 
D)  [ 20, 30 ]

Question 16

A sorted collection must be in a linear structure, ordered by position.

Accepted Answer

A) True 
 B)False

Question 17

Which statement is true about a sorted collection?

Accepted Answer

A)  must be ordered by position 
B)  they need not be linear 
C)  searching is inefficient 
D)  a box of donuts is an example 
A)  must be ordered by position 
B)  they need not be linear 
C)  searching is inefficient 
D)  a box of donuts is an example

Question 18

Which of the following is true about Python collections?

Accepted Answer

A)  most can be heterogeneous 
B)  all are homogeneous 
C)  they are typically static 
D)  all are immutable object types 
A)  most can be heterogeneous 
B)  all are homogeneous 
C)  they are typically static 
D)  all are immutable object types

Question 19

The use of collections is a Python programming requirement, but they are not very useful for working with real-world objects.

Accepted Answer

A) True 
 B)False

Question 20

Python includes two implementations of lists: arrays and linked lists.

Accepted Answer

A) True 
 B)False

A set is a built-in Python collection type.

When a for loop is used to iterate over a collection, which statement is true?

In Python, modules and methods are the smallest units of abstraction, classes are the next in size, and functions are the largest.

Which real-world item best represents a hierarchical collection?

If you clone an object using the = operator (as in myList=list(yourList) ), the is operator returns True while the == operator returns False.

When using a for loop to iterate over a list, the items are visited in no particular order.

What is the value of myObject after the following code executes? YourObject = "Hi" MyObject = tuple(yourObject)

Which operator is used to obtain a string representation of a collection?

A tuple is an immutable collection type.

Use the & operator to concatenate two collections.

Which of the following is an unordered collection?

What is the value of c after the following code executes? A = [ 10, 20, 30 ] B = [ 40, 50, 60 ] C = a + b

The map, filter, and reduce functions can only be used on list collections.

Which of the following is a special case of type conversion, where the two collections are of the same type?

What is the value of aList after the following code is executed? AList = [ 10, 20, 30 ] AList.pop()

A sorted collection must be in a linear structure, ordered by position.

Which statement is true about a sorted collection?

Which of the following is true about Python collections?

The use of collections is a Python programming requirement, but they are not very useful for working with real-world objects.

Python includes two implementations of lists: arrays and linked lists.

Basic Python Programming

Searching, Sorting, and Complexity Analysis

Arrays and Linked Structures

Interfaces, Implementations, and Polymorphism

Inheritance and Abstract Classes

Stacks

Queues

Lists

Trees

Sets and Dictionaries

Graphs

Filters

Exam 2: An Overview of Collections

A set is a built-in Python collection type.

When a for loop is used to iterate over a collection, which statement is true?

In Python, modules and methods are the smallest units of abstraction, classes are the next in size, and functions are the largest.

Which real-world item best represents a hierarchical collection?

If you clone an object using the = operator (as in myList=list(yourList) ), the is operator returns True while the == operator returns False.

When using a for loop to iterate over a list, the items are visited in no particular order.

What is the value of myObject after the following code executes? YourObject = "Hi" MyObject = tuple(yourObject)

Which operator is used to obtain a string representation of a collection?

A tuple is an immutable collection type.

Use the & operator to concatenate two collections.

Which of the following is an unordered collection?

What is the value of c after the following code executes? A = [ 10, 20, 30 ] B = [ 40, 50, 60 ] C = a + b

The map, filter, and reduce functions can only be used on list collections.

Which of the following is a special case of type conversion, where the two collections are of the same type?

What is the value of aList after the following code is executed? AList = [ 10, 20, 30 ] AList.pop()

A sorted collection must be in a linear structure, ordered by position.

Which statement is true about a sorted collection?

Which of the following is true about Python collections?

The use of collections is a Python programming requirement, but they are not very useful for working with real-world objects.

Python includes two implementations of lists: arrays and linked lists.

Basic Python Programming

Searching, Sorting, and Complexity Analysis

Arrays and Linked Structures

Interfaces, Implementations, and Polymorphism

Inheritance and Abstract Classes

Stacks

Queues

Lists

Trees

Sets and Dictionaries

Graphs

Filters