Computer Science LISTS

Correct code to define a list in Python?

• scores = [15, 29, 4, 50]

• scores = {15, 29, 4, 50}

• Int[] scores = {15, 29, 4, 50};

• scores = (15, 29, 4, 50)

Choose all the ways in which a Python list is different from an array ...

• Arrays have fixed length: Lists have dynamic length

• Arrays only contain one data type; Lists can contain many data types

• Arrays are indexed from 1; Lists are indexed from 0

• Arrays can not be empty; Lists can be empty

Output is ...?

• mango

• pear

• kiwi

• ['apple','banana','pear']

Choose three valid methods that may be applied to lists in Python ...

• list.append(x)

• list.count(x)

• list.sort()

• list.format()

• list.isNumeric()

colours = ['red', 'blue', 'yellow', 'green', 'purple']

Which instruction illustrates mutability?

• colours[2] = 'pink'

• colours.append('pink')

• colours.insert(2, 'pink')

• colours.remove('pink')

Output is ... ?

• Index out of range

• 29

• 34

• 89

Correct code to access the second 'Terry' in this list ... ?

• montyPython[5]

• montyPython[6]

• montyPython[-1]

• montyPython[3]

Example of ... ?

• Indexing

• Appending

• Slicing

• Concatenation

Example of ... ?

• Concatenating

• Slicing

• Indexing

• Iterating

for(int i=0; i<10; i++)
           numbers[i] = 2 * i + 1;
// Which index of the array holds the value of 5?

• 1
• 2
• 3
• 4