List Methods Quiz

What does the count() method do in a list?

• Returns the index of the first occurrence of an element

• Returns the number of times a given element appears in the list

• Removes the first occurrence of an element from the list

• Reverses the order of elements in the list

What will happen if you call index() on an element not in the list?

• It will return -1

• It will return None

• It will remove the element from the list

• It will generate a ValueError

What does the remove() method do?

• Reverses the list

• Removes all occurrences of an element

• Removes the last element of the list

• Removes the first occurrence of a specified element

What does the pop() method return if no index is specified?

• The middle element of the list

• The first element of the list

• The last element of the list

• None

What is the result of calling reverse() on the list ['Tiger', 'Zebra', 'Lion']?

• ['Tiger', 'Lion', 'Zebra']

• ['Lion', 'Tiger', 'Zebra']

• ['Lion', 'Zebra', 'Tiger']

• ['Zebra', 'Tiger', 'Lion']

What will the list look like after executing list1.remove(30) on list1 = [10, 20, 30, 40, 50, 30]?

• [10, 20, 40, 50, 30]

• [10, 20, 30, 50]

• [10, 20, 30, 40, 50, 30]

• [10, 20, 30, 40, 50]

What does the sort() method do?

• Sorts the elements of the list in place

• Returns a sorted copy of the list

• Reverses the order of elements in the list

• Removes duplicates from the list

What will be the output of list1.index(90) if list1 = [10, 20, 30]?

• None

• 0

• 2

• ValueError