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Python Programming - Lists

Exercise : Lists - General Questions
  • Lists - General Questions
51.
How can you check if a specific element exists in a Python list?
element in list
list.contains(element)
list.find(element)
list.has(element)
Answer: Option
Explanation:
The in keyword is used to check if a specific element exists in a Python list.
52.
What is the purpose of the list.copy() method in Python?
Creates a deep copy of the list.
Creates a shallow copy of the list.
Copies elements from one list to another.
Concatenates two lists.
Answer: Option
Explanation:
The copy() method in Python lists is used to create a shallow copy of the list.
53.
What is the purpose of the list.reverse() method in Python?
Sorts the list in descending order.
Reverses the order of elements in the list.
Removes duplicate elements from the list.
Appends the list to itself.
Answer: Option
Explanation:
The reverse() method in Python lists is used to reverse the order of elements in-place.
54.
What does the list.pop() method do without providing an index?
Removes the last element from the list.
Removes the first element from the list.
Raises an error as an index is required.
Removes all occurrences of a specific element.
Answer: Option
Explanation:
Without providing an index, pop() removes and returns the last element from the list.
55.
How can you create a list of squared values from another list in Python?
squared_list = list.square_values()
squared_list = [x^2 for x in original_list]
squared_list = list.map(lambda x: x**2, original_list)
squared_list = [x**2 for x in original_list]
Answer: Option
Explanation:
Using list comprehension, you can create a new list of squared values from an existing list.
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