MCQs on Data Structures | Python programming

Which of the following is the correct way to create a list in Python?
- a) list = ()
- b) list = []
- c) list = {}
- d) list = <>
How do you access the first element of a list my_list = [1, 2, 3]?
- a) my_list[1]
- b) my_list(0)
- c) my_list[0]
- d) my_list[0:]
Which method is used to add an element at the end of a list?
- a) append()
- b) insert()
- c) extend()
- d) add()
How do you modify an element at index 2 in a list my_list = [1, 2, 3]?
- a) my_list[2] = 5
- b) my_list(2) = 5
- c) my_list[3] = 5
- d) my_list.append(5)
What is the method to remove an element from a list by value?
- a) remove()
- b) pop()
- c) del()
- d) clear()

Which of the following will return the length of a list in Python?
- a) len(list)
- b) list.size()
- c) list.length()
- d) size(list)
What will be the output of the following code: my_list = [1, 2, 3, 4]; print(my_list[2:])?
- a) [2, 3, 4]
- b) [3, 4]
- c) [1, 2, 3]
- d) [2, 3]
Which method is used to remove an element from a list by index?
- a) pop()
- b) remove()
- c) del()
- d) clear()
What will the following code output: my_list = [1, 2, 3]; print(my_list[::-1])?
- a) [1, 2, 3]
- b) [3, 2, 1]
- c) [2, 1, 3]
- d) IndexError
How do you concatenate two lists in Python?
- a) list1 + list2
- b) list1.append(list2)
- c) list1.extend(list2)
- d) list1.insert(list2)

Which method is used to add an element at a specific index in a list?
- a) insert()
- b) append()
- c) add()
- d) extend()
How do you count the occurrences of an element in a list?
- a) count()
- b) find()
- c) index()
- d) search()
Which method is used to remove all elements from a list?
- a) clear()
- b) remove()
- c) del()
- d) pop()
How do you reverse the elements of a list?
- a) reverse()
- b) sort()
- c) reversed()
- d) reverse_elements()
Which operation checks if an item exists in a list?
- a) in
- b) ==
- c) contains()
- d) has()

How do you define a tuple in Python?
- a) tuple = []
- b) tuple = ()
- c) tuple = {}
- d) tuple = <>
Which of the following statements is true about tuples in Python?
- a) Tuples are mutable
- b) Tuples are immutable
- c) Tuples cannot store different data types
- d) Tuples cannot store duplicates
How do you access the second element of a tuple my_tuple = (10, 20, 30)?
- a) my_tuple(2)
- b) my_tuple[1]
- c) my_tuple[2]
- d) my_tuple[0]
What is the method used to find the index of an element in a tuple?
- a) index()
- b) search()
- c) locate()
- d) find()
How do you concatenate two tuples?
- a) tuple1 + tuple2
- b) tuple1.append(tuple2)
- c) tuple1.insert(tuple2)
- d) tuple1.extend(tuple2)

How do you convert a tuple to a list?
- a) list()
- b) tuple()
- c) convert()
- d) to_list()
Which of the following will result in a TypeError?
- a) my_tuple[0] = 5
- b) my_tuple[0]
- c) tuple1 + tuple2
- d) len(my_tuple)
What happens if you try to modify an element in a tuple?
- a) It will be modified successfully
- b) It will throw a TypeError
- c) It will be ignored
- d) It will modify the tuple globally
How do you count the occurrences of an element in a tuple?
- a) count()
- b) find()
- c) index()
- d) count_elements()
How do you remove an element from a tuple?
- a) del()
- b) pop()
- c) remove()
- d) Tuples are immutable and cannot be changed

How do you define a dictionary in Python?
- a) dict = []
- b) dict = ()
- c) dict = {}
- d) dict = <>
What is the method used to add a key-value pair to a dictionary?
- a) insert()
- b) add()
- c) put()
- d) dict[key] = value
How do you access a value from a dictionary using a key?
- a) dict.key
- b) dict(key)
- c) dict[key]
- d) dict.get(key)
Which method returns a list of keys in a dictionary?
- a) keys()
- b) values()
- c) items()
- d) list()
How do you remove a key-value pair from a dictionary?
- a) pop()
- b) remove()
- c) del()
- d) clear()

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