PCEP Data Structures 3

Question 1

What does `'key' in {'key': 1, 'val': 2}` evaluate to?

Accepted Answer

True

Answer

False

Answer

1

Answer

Error

Question 2

Which list method inserts an element at a specific index?

Accepted Answer

insert()

Answer

append()

Answer

extend()

Answer

add()

Question 3

What is the value of `d` after `d = {}; d['x'] = 10; d['x'] += 5`?

Accepted Answer

{'x': 15}

Answer

{'x': 10}

Answer

{'x': 5}

Answer

Error

Question 4

What does `sorted({3, 1, 2})` return?

Accepted Answer

[1, 2, 3]

Answer

{1, 2, 3}

Answer

(1, 2, 3)

Answer

Error

Question 5

What is the output of `[0] * 4`?

Accepted Answer

[0, 0, 0, 0]

Answer

[0, 1, 2, 3]

Answer

[4]

Answer

0

Question 6

Which dictionary method returns all key-value pairs as view objects?

Accepted Answer

items()

Answer

keys()

Answer

values()

Answer

pairs()

Question 7

What is the result of `{1, 2, 3} & {2, 3, 4}`?

Accepted Answer

{2, 3}

Answer

{1, 2, 3, 4}

Answer

{1, 4}

Answer

Error