List

What will be the output of the following Python code?

names = ['Amir', 'Bear', 'Charlton', 'Daman']

print(names[-1][-1])

• A

• Daman

• n

• Amir

What will be the output of the following Python code?

• 11

• 12

• 21

• 22

Answer explanation

When assigning names1 to names2, we create a second reference to the same list. Changes to names2 affect names1. When assigning the slice of all elements in names1 to names3, we are creating a full copy of names1 which can be modified independently.

Suppose list1 is [1, 3, 2],

What is list1 * 2?

• [2, 6, 4]

• [1, 3, 2, 1, 3]

• [1, 3, 2, 1, 3, 2]

• [1, 3, 2, 3, 2, 1]

Suppose list1 = [0.5 * x for x in range(0, 4)],

list1 is:

• [0, 1, 2, 3]

• [0, 1, 2, 3, 4]

• [0.0, 0.5, 1.0, 1.5]

• [0.0, 0.5, 1.0, 1.5, 2.0]

To insert 5 to the third item in list1, we use which command?

• list1.insert(3, 5)

• list1.insert(2, 5)

• list1.add(3, 5)

• list1.insert(5, 2)

Suppose listExample is [3, 4, 5, 20, 5, 25, 1, 3],

what is list1 after listExample.pop(1)?

• [3, 4, 5, 20, 5, 25, 1, 3]

• [3, 4, 5, 20, 5, 25, 1]

• [3, 5, 20, 5, 25, 1, 3]

• [4, 5, 20, 5, 25, 1, 3]

What will be the output of the following Python code?

list("a#b#c#d".split('#'))

• [‘a’, ‘b’, ‘c’, ‘d’]
  

• [‘a b c d’]

• [‘a#b#c#d’]

• [‘abcd’]