ExamAdept

How can you create a list of squared values from another list in Python?

A:

squared_list = list.square_values()

B:

squared_list = [x^2 for x in original_list]

C:

squared_list = list.map(lambda x: x**2, original_list)

D:

squared_list = [x**2 for x in original_list]

Answer: D

Using list comprehension, you can create a new list of squared values from an existing list.

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What does the list.pop() method do without providing an index?

A:

Removes the last element from the list.

B:

Removes the first element from the list.

C:

Raises an error as an index is required.

D:

Removes all occurrences of a specific element.

Answer: A

Without providing an index, pop() removes and returns the last element from the list.

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What is the purpose of the list.copy() method in Python?

A:

Creates a deep copy of the list.

B:

Creates a shallow copy of the list.

C:

Copies elements from one list to another.

D:

Concatenates two lists.

Answer: B

The copy() method in Python lists is used to create a shallow copy of the list.

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How can you check if a specific element exists in a Python list?

A:

element in list

B:

list.contains(element)

C:

list.find(element)

D:

list.has(element)

Answer: A

The in keyword is used to check if a specific element exists in a Python list.

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What is the purpose of the list.extend() method in Python?

A:

Adds a specified element to the list.

B:

Extends the list by appending elements from an iterable.

C:

Increases the length of the list.

D:

Concatenates two lists.

Answer: B

The extend() method in Python lists is used to extend the list by appending elements from an iterable.

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Questions for: Lists