Python List Operations 2

What is the output of the following code?
L = [10, 20, 30, 40, 50]
result = L[-4:4:2]
print(result)

• [20, 40]

• [20, 30, 40]

• [30]

• [20]

What is the result of len(L) after the following operations?
L = [1, 2] * 3
L = L + [4, 5]

• 6

• 7

• 8

• 5

What is the output? Python ?
L = [1, 2, 3]
L[1:3] = [9, 8, 7, 6]
print(L)

• [1, 9, 8, 7, 6]

• [1, 9, 8, 7, 6, 4]

• [1, 9, 8, 7, 6, 3]

• Error

What is the output?
L = ['a', 'b', 'c', 'd']
L[-1] = L[0]
print(L)

• ['a', 'b', 'c', 'a']

• ['d', 'b', 'c', 'a']

• ['d', 'b', 'c', 'd']

• ['a', 'b', 'c', 'd']

L = [10, 20, 30, 40]
What is the output of L[-1] + L[-2]?

• 70

• 60

• 50

• 30

L = ['a', 'b', ['x', 'y', 'z']]
What is the result of 'z' in L?

• True

• False

• Error

• Depends on Python version

What is the output?
L = [10, 20, 30, 40]
print(L[-2:])

• [30, 40]

• [20, 30, 40]

• [40]

• [10, 20]

What is the output?
L = [1, 2, 3, 4]
L[0:0] = [99]
print(L)

• A: [99, 1, 2, 3, 4]

• B: [1, 2, 3, 4]

• C: [ ]

• D: [99]

L = [1, 2, 3, 4, 5]
What is the value of sum(L) + max(L)?

• 15

• 20

• 18

• 25

What is the output?
L = [1, 2, 3]

del L[::2]

print(L)

• A: [2]

• B: [2, 4]

• C: [1, 3]

• D: Error