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web.groovymark@gmail.com
- December 8, 2024
Question 21
What will be the output of this code?
numbers = [1, 2, 3, 4, 5]
print(numbers[-1])
a) 1
b) 5
c) 4
d) Error
Correct Answer: b) 5
Explanation: Negative indexing starts from the end of the list. numbers[-1] accesses the last element, which is 5.
Question 22
What is the output of the following Python code?
x = [1, 2, 3]
y = [1, 2, 3]
print(x is y)
a) True
b) False
c) 1
d) Error
Correct Answer: b) False
Explanation: Even though x and y have the same contents, they are different objects in memory. The is operator checks for object identity, not value equality.
Question 23
What does the following code return?
print(2 in [1, 2, 3])
a) True
b) False
c) Error
d) None
Correct Answer: a) True
Explanation: The in keyword checks for membership. Since 2 is an element of the list [1, 2, 3], the result is True.
Question 24
What will this Python code output?
x = “Python”
print(x[2:])
a) P
b) tho
c) thon
d) thonPython
Correct Answer: c) thon
Explanation: The slice [2:] starts from index 2 and goes to the end of the string. In 'Python', index 2 corresponds to 't'.
Question 25
What will this code output?
print(type([1, 2, 3]))
a) <class ‘tuple’>
b) <class ‘list’>
c) <class ‘set’>
d) <class ‘dict’>
Correct Answer: b) <class 'list'>
Explanation: The type() function returns the type of the object. [1, 2, 3] is a list, so the output will be <class 'list'>.
Question 26
Which of the following is a valid Python variable name?
a) 1st_place
b) first-place
c) first_place
d) first place
Correct Answer: c) first_place
Explanation: Python variable names cannot start with a digit, contain spaces, or use hyphens. The name first_place is valid.
Question 27
What does this Python code do?
my_dict = {“name”: “Alice”, “age”: 25}
print(my_dict[“name”])
a) Prints 25
b) Prints Alice
c) Prints name
d) Error
Correct Answer: b) Prints Alice
Explanation: The dictionary my_dict stores values associated with keys. my_dict["name"] accesses the value associated with the key "name", which is "Alice".
Question 28
What is the result of this Python code?
print(“Hello”.lower())
a) HELLO
b) Hello
c) hello
d) Error
Correct Answer: c) hello
Explanation: The lower() method converts all characters in the string to lowercase. "Hello" becomes "hello".
Question 29
What will the following code output?
print(3 * ‘A’)
a) A A A
b) AAA
c) A
d) 3A
Correct Answer: b) AAA
Explanation: The * operator can be used to repeat a string. 'A' * 3 results in the string 'AAA'.
Question 30
What does the following code return?
print(type((1, 2, 3)))
a) <class ‘list’>
b) <class ‘tuple’>
c) <class ‘set’>
d) <class ‘dict’>
Correct Answer: b) <class 'tuple'>
Explanation: The type of (1, 2, 3) is a tuple. The type() function returns <class 'tuple'>.
Question 31
What will be the output of this code?
print(“Python”[::-1])
a) Python
b) nohtyP
c) nohty
d) Error
Correct Answer: b) nohtyP
Explanation: The slice [::-1] reverses the string. The result is the reversed version of "Python", which is "nohtyP".
Question 32
What will this Python code output?
for i in range(3):
print(i, end=”, “)
a) 0, 1, 2
b) 0, 1, 2,
c) 0 1 2
d) Error
Correct Answer: b) 0, 1, 2,
Explanation: The end=", " argument in the print() function adds a comma and space after each printed value, including the last one.
Question 33
What does this Python code do?
x = [1, 2, 3]
y = x.copy()
y.append(4)
print(x)
a) Prints [1, 2, 3]
b) Prints [1, 2, 3, 4]
c) Prints [4]
d) Error
Correct Answer: a) Prints [1, 2, 3]
Explanation: The copy() method creates a shallow copy of the list x. Changes to y do not affect the original list x.
Question 34
Which operator is used to concatenate strings in Python?
a) +
b) *
c) %
d) &
Correct Answer: a) +
Explanation: The + operator is used to concatenate two strings in Python.
Question 35
What will be the output of this code?
print(10 / 4)
a) 2
b) 2.5
c) 2.0
d) 3
Correct Answer: b) 2.5
Explanation: The / operator performs true division and returns a floating-point number. 10 / 4 equals 2.5.
Question 36
What will this Python code return?
fruits = [“apple”, “banana”, “cherry”]
fruits.insert(1, “orange”)
print(fruits)
a) [“apple”, “orange”, “banana”, “cherry”]
b) [“apple”, “banana”, “cherry”, “orange”]
c) [“orange”, “apple”, “banana”, “cherry”]
d) Error
Correct Answer: a) ["apple", "orange", "banana", "cherry"]
Explanation: The insert() method inserts an element at a specified position in the list. "orange" is inserted at index 1.
Question 37
What will be the result of this Python code?
x = [1, 2, 3]
x.remove(2)
print(x)
a) [1, 2, 3]
b) [1, 3]
c) [2, 3]
d) Error
Correct Answer: b) [1, 3]
Explanation: The remove() method removes the first occurrence of the specified element from the list. In this case, 2 is removed.
Question 38
What does this Python code return?
print(type({1, 2, 3}))
a) <class ‘list’>
b) <class ‘tuple’>
c) <class ‘set’>
d) <class ‘dict’>
Correct Answer: c) <class 'set'>
Explanation: The curly braces {} denote a set in Python. The type() function returns <class 'set'> for {1, 2, 3}.
Question 39
What is the result of this Python expression?
x = “123”
print(x.isdigit())
a) True
b) False
c) Error
d) None
Correct Answer: a) True
Explanation: The isdigit() method returns True if all characters in the string are digits. "123" contains only digits, so the result is True.
Question 40
What will this Python code return?
print([1, 2, 3] + [4, 5, 6])
a) [1, 2, 3, [4, 5, 6]]
b) [5, 7, 9]
c) [1, 2, 3, 4, 5, 6]
d) [1, 2, 3]
Correct Answer: c) [1, 2, 3, 4, 5, 6]
Explanation: The + operator concatenates two lists in Python. [1, 2, 3] + [4, 5, 6] results in [1, 2, 3, 4, 5, 6].
