Python Sets & Dictionaries

Empty curly braces in an assignment statement will create which type of data structure?

(s = {})

• List

• Dictionary

• Stack

• Set

Square brackets in an assignment statement will create which type of data structure?

( s=[] )

• List

• Queue

• Dictionary

• Set

Which is not true about sets?

• The .pop() method removes elements

• They are unordered

• Each element is unique

Which data structure stores key/value pairs?

• Sets

• Stacks

• Lists

• Dictionaries

The elements that both sets have in common:

• Union

• Intersection

• Symmetric Difference

• Difference

Each key/value pair in a dictionary is separated by this symbol:

• /

• ,

• :

• ;

Which data structure is exponentially more efficient than the others?

• List

• Set

• Tuple

• Hash Map

Which method will remove an element the Dictionary data type?

• .pop()

• .discard()

• .remove()

Which data structure is immutable?

• Set

• Dictionary

• Tuple

You have the following dictionary definition:

d = {'foo': 100, 'bar': 200, 'baz': 300}

What method call will delete the entry whose value is 200?

• delete d('bar')

• d.pop("bar")

• d.remove("bar")

• None of the above