Question 1

When a shallow copy of a collection is made, only references to the items in the new collection are copied.

Accepted Answer

A) True 
 B)False

Question 2

To traverse a collection's items, use the for loop.

Accepted Answer

A) True 
 B)False

Question 3

To be considered equal, two lists must have the same length and the same items in each position, whereas the same sets must simply contain exactly the same items, but in no particular order.

Accepted Answer

A) True 
 B)False

Question 4

The pop method is used to add items to a Python list.

Accepted Answer

A) True 
 B)False

Question 5

What is the value of r after the following code executes?
MySet = {2, 3, 5, 7, 11}
YourSet = {5, 7, 2, 11, 3}
R = yourSet == mySet

Accepted Answer

A)   {5, 7, 2, 11, 3}
B)   True
C)   False
D)   0E) C) and D)
F) B) and D)

Question 6

By default, items in a sorted collection are visited in descending order when using a for loop iterator.

Accepted Answer

A) True 
 B)False

Question 7

Graph collections are organized in a parent/children relationship.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following lists Python units of abstraction from smallest to largest?

Accepted Answer

A)   classes, methods, functions, modules
B)   functions, methods, classes, modules
C)   modules, functions, methods, classes
D)   modules, classes, methods, functionE) B) and D)
F) B) and C)

Question 9

In computer science, abstraction is used for ignoring or hiding details that are nonessential.

Accepted Answer

A) True 
 B)False

Question 10

To determine equality of two collections, use the == operator.

Accepted Answer

A) True 
 B)False

Question 11

In computer science, collections are also called objective data types (ODTs).

Accepted Answer

A) True 
 B)False

Question 12

What is the value of r after the following code executes?
MyList = [ 2, 3, 5, 7, 11 ]
YourList = list(myList) 
R = yourList is myList

Accepted Answer

A)   [ 2, 3, 5, 7, 11 ]
B)   True
C)   None
D)   FalseE) A) and C)
F) B) and D)

Question 13

A search operation is usually more efficient on a sorted collection than on an unsorted collection.

Accepted Answer

A) True 
 B)False

Question 14

What is the value of newList after the following code executes?
NewList = list(range(9, 0, -3) )

Accepted Answer

A)   [ 8, 5, 2 ]
B)   [ 9, 6, 3, 0 ]
C)   [ 9, 6, 3 ]
D)   [ ]E) C) and D)
F) None of the above

Question 15

What can a programmer do to prevent side effects from cloning mutable objects?

Accepted Answer

A)   create a deep copy using a for loop
B)   create a shallow copy using a type conversion
C)   create a deep copy using a type conversion
D)   use the assignment operator in stead of a type conversionE) A) and C)
F) B) and C)

Question 16

Which real-world item best represents a linear collection?

Accepted Answer

A)   file system
B)   organizational chart
C)   stack of bricks
D)   table of contentsE) A) and B)
F) C) and D)

Question 17

What is the value of newObject after the following code executes?
NewObject = tuple("Hello")

Accepted Answer

A)   ('H', 'e', 'l', 'l', 'o') 
B)   [ "Hello" ]
C)   ("Hello") 
D)   [ 'H', 'e', 'l', 'l', 'o' ]E) A) and D)
F) B) and C)

Question 18

All collections are also iterable objects.

Accepted Answer

A) True 
 B)False

Question 19

In which type of collection does each item have many predecessors and successors, called neighbors?

Accepted Answer

A)   linear
B)   hierarchical
C)   graph
D)   unorderedE) A) and B)
F) A) and C)

Question 20

A line of customers waiting to get into a movie is an example of a hierarchical collection.

Accepted Answer

A) True 
 B)False

Exam 2: An Overview of Collections

In computer science, abstraction is used for ignoring or hiding details that are nonessential.

Correct AnswerverifiedShow Answer

To be considered equal, two lists must have the same length and the same items in each position, whereas the same sets must simply contain exactly the same items, but in no particular order.

Correct AnswerverifiedShow Answer

Which of the following lists Python units of abstraction from smallest to largest?

Correct AnswerverifiedShow Answer

By default, items in a sorted collection are visited in descending order when using a for loop iterator.

Correct AnswerverifiedShow Answer

All collections are also iterable objects.

Correct AnswerverifiedShow Answer

To traverse a collection's items, use the for loop.

Correct AnswerverifiedShow Answer

In which type of collection does each item have many predecessors and successors, called neighbors?

Correct AnswerverifiedShow Answer

What is the value of r after the following code executes? MyList = [ 2, 3, 5, 7, 11 ] YourList = list(myList) R = yourList is myList

Correct AnswerverifiedShow Answer

A line of customers waiting to get into a movie is an example of a hierarchical collection.

Correct AnswerverifiedShow Answer

Which real-world item best represents a linear collection?

Correct AnswerverifiedShow Answer

The pop method is used to add items to a Python list.

Correct AnswerverifiedShow Answer

A search operation is usually more efficient on a sorted collection than on an unsorted collection.

Correct AnswerverifiedShow Answer

In computer science, collections are also called objective data types (ODTs).

Correct AnswerverifiedShow Answer

What is the value of r after the following code executes? MySet = {2, 3, 5, 7, 11} YourSet = {5, 7, 2, 11, 3} R = yourSet == mySet

Correct AnswerverifiedShow Answer

When a shallow copy of a collection is made, only references to the items in the new collection are copied.

Correct AnswerverifiedShow Answer

What is the value of newObject after the following code executes? NewObject = tuple("Hello")

Correct AnswerverifiedShow Answer

What is the value of newList after the following code executes? NewList = list(range(9, 0, -3) )

Correct AnswerverifiedShow Answer

What can a programmer do to prevent side effects from cloning mutable objects?

Correct AnswerverifiedShow Answer

Graph collections are organized in a parent/children relationship.

Correct AnswerverifiedShow Answer

To determine equality of two collections, use the == operator.

Correct AnswerverifiedShow Answer

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