Python Lists MCQs: Exam Practice for List Concepts

1

Which of the following is the correct way to create an empty list in Python?

A) list() B) [] C) empty_list() D) list[]

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Answer & Solution

Answer: Option B

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2

What does the len() function do when applied to a list?

A) Returns the length of the list B) Converts the list to lowercase C) Converts the list to uppercase D) Removes the last element

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Answer & Solution

Answer: Option A

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3

How can you add an element at the end of a list in Python?

A) append() B) add() C) insert() D) extend()

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Answer & Solution

Answer: Option A

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4

What is the purpose of the list() constructor in Python?

A) Creates a new list B) Converts a list to a tuple C) Converts a string to a list D) Creates a tuple

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Answer & Solution

Answer: Option A

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5

Which method is used to remove the last element from a list?

A) pop() B) remove() C) delete() D) last()

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Answer & Solution

Answer: Option A

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6

In Python, how can you check if an element exists in a list?

A) in keyword B) exists() C) contains() D) check()

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Answer & Solution

Answer: Option A

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7

What method is used to insert an element at a specific index in a list?

A) insert() B) add() C) append() D) push()

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Answer & Solution

Answer: Option A

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8

What is the purpose of the remove() method for lists?

A) Removes the specified element B) Adds an element to the list C) Replaces an element in the list D) Deletes the list

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Answer & Solution

Answer: Option A

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9

Which method is used to count the occurrences of an element in a list?

A) count() B) find() C) search() D) locate()

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Answer & Solution

Answer: Option A

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10

What is the output of the following code:

my_list = [1, 2, 3]
print(my_list[1])

A) 1 B) 2 C) 3 D) Error

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Answer & Solution

Answer: Option B

Solution:

Code: my_list = [1, 2, 3] print(my_list[1]) Step-by-Step Explanation:

1. List Creation:
The code creates a list named my_list with elements [1, 2, 3].
A list in Python is an ordered collection of elements, where each element has an index.
The list my_list is indexed as follows:
Index 0: 1
Index 1: 2
Index 2: 3

2. Accessing an Element:
The code my_list[1] is used to access the element at index 1 in the list.
Since Python uses zero-based indexing, the element at index 1 is 2.

3. Printing the Element:
The print() function outputs the value of my_list[1], which is 2, to the console.

4. Correct Output:
The result of executing the code is the number 2. Output: The correct output of the code is 2. Key Points to Remember:

1. Python lists are zero-indexed. The first element is at index 0, the second at index 1, and so on.
2. Using an index out of range (e.g., my_list[3] for the given list) would result in an IndexError.
3. The code is syntactically correct and does not produce any errors.