Hackerrank Python Basics 2

Question 1

What does the `//` operator do in Python?

Accepted Answer

Floor division (integer quotient)

Answer

Floating-point division

Answer

Modulo (remainder)

Answer

Exponentiation

Question 2

Which of the following correctly unpacks a tuple `t = (1, 2, 3)` into three variables?

Accepted Answer

a, b, c = t

Answer

a = b = c = t

Answer

[a, b, c] = *t

Answer

a, b, c = *t

Question 3

What is the output of `bool([])` in Python?

Accepted Answer

False

Answer

True

Answer

None

Answer

Error

Question 4

Which built-in function returns the number of elements in a list?

Accepted Answer

len()

Answer

count()

Answer

size()

Answer

length()

Question 5

What will `'hello'[1:4]` evaluate to?

Accepted Answer

'ell'

Answer

'hel'

Answer

'ello'

Answer

'hell'

Question 6

How do you convert the string `'42'` to an integer in Python?

Accepted Answer

int('42')

Answer

integer('42')

Answer

str.to_int('42')

Answer

parse('42')

Question 7

What is the result of `3 ** 2` in Python?

Accepted Answer

9

Answer

6

Answer

8

Answer

None