Mastering Python Data Structures

Mastering Python Data Structures

University

10 Qs

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Mastering Python Data Structures

Mastering Python Data Structures

Assessment

Quiz

Computers

University

Practice Problem

Hard

Created by

Solaf Ali

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method would you use to add an element to a list in Python?

Use the 'extend()' method.

Use the 'add()' method.

Use the 'insert()' method.

Use the 'append()' method.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain how to create a dictionary comprehension to generate a dictionary of squares from a list of numbers.

{x: x**2 for x in numbers}

{x: x^2 for x in numbers}

{x: x*2 for x in numbers}

{x: x+1 for x in numbers}

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you slice an array to get the first three elements?

array.slice(3)

array.slice(0, 3)

array.slice(1, 4)

array.slice(0, 2)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between mutable and immutable types in Python?

Mutable types cannot be changed; immutable types can be changed after creation.

Both mutable and immutable types can be changed at any time.

Mutable types are faster than immutable types in all cases.

Mutable types can be changed; immutable types cannot be changed after creation.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you remove an item from a list by its value?

Use del list[value] to delete an item by its value.

Use list.pop(index) to remove an item by its index.

Use list.clear(value) to remove all items from the list.

Use list.remove(value) to remove an item by its value.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write a dictionary comprehension that creates a dictionary from two lists: keys and values.

{key: values[key] for key in range(len(keys))}

{key: value for key in keys}

{key: value for key, value in zip(keys, values)}

{key: values[key] for key in keys}

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will be the output of the following code: arr = [1, 2, 3, 4]; print(arr[1:3])?

[2, 3]

[1, 2]

[1, 2, 3, 4]

[3, 4]

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