Dictionary1

Items are accessed by their position in a dictionary

• True

• False

Which of the following create an empty dictionary (D)?

• D = dict()

• D = ()

• D = []

• D = {}

is this code correct?
quiz = ("Do you help out at home? ":"yes"      }

• No
• Yes
• Both

In Python, Dictionaries are immutable

• True

• False

Which of the following is not a valid way to define this dictionary in Python:

• d = dict([

  ('foo', 100),

  ('bar', 200),

  ('baz', 300)

  ])

• d = {}

  d['foo'] = 100

  d['bar'] = 200

  d['baz'] = 300

• d = dict(foo=100, bar=200, baz=300)

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

• d = { ('foo', 100), ('bar', 200), ('baz', 300) }

Which of the following statements about dictionary keys in Python is false?

• Keys must be immutable

• Keys can be of any data type

• Keys can be duplicated

• Keys are case-sensitive

Which of the following statements is used to create an empty set?

• { }

• set()

• [ ]

• ( )

Which of the following is not a declaration of the dictionary?

• {1: ‘A’, 2: ‘B’}

• dict([[1,”A”],[2,”B”]])

• {1,”A”,2”B”}

• { }

Which of the following statements create a dictionary?

• d = {}

• d = {40:”john”, 45:”peter”}

• d = {40:”john”, 45:”peter”}

• All of the mentioned

Select correct ways to create an empty dictionary

• sampleDict = {}

• sampleDict = dict()

• sampleDict = dict{}