grade 11 - CS -Assessment

In Python, Dictionaries are

• immutable

• mutable

Items are accessed by their keys in a dictionary

• True

• False

Dictionary keys must be _________

• immutable

• mutable

What would be the output of the following code snippet?

a_dict = {'color': 'blue', 'fruit': 'apple', 'pet': 'dog'}

for key in a_dict:

print(key)

• 'blue'

  'apple'

  'dog'

• color

  fruit

  pet

• blue

  apple

  dog

• 'color'

  'fruit'

  'pet'

Select correct ways to create an empty dictionary

• sampleDict = {}

• sampleDict = dict()

• sampleDict = dict{}

Which of these is the best description of a list in Python?

• A list is a collection of data that has an order and can be changed

• A list is a lot of variables

• A list is used for shopping

• A list is a collection of data that cannot hold duplicated data and cannot be changed

Which of these pieces of code would return the name "Harry" from the following list?

nameList = ["John", "Harry", "Jesse", "John", "Harry", "Harry"]

• nameList()

• nameList[1]

• NameList(4)

• nameList["4"]

How do i remove something from a list?

• variable.append()

• variable.delete()

• variable.remove()

• variable=(new variable)

What is used to separate elements in a list?

• Bracket

• Comma

• Full Stop

• Space

Each item in a list has an "address" or index. The first index in a Python list is what?

• 1

• 0

• a

• A