Cyber Olympiad Class 10 - Sample question paper 11

Q1. What will be the output of the following Python code?

numbers = [2, 4, 6, 8, 10]
result = list(filter(lambda x: x % 3 == 0, numbers))
print(result)

a) [2, 4, 6, 8, 10]

b) [3, 6, 9]

c) [6]

d) [9]

Q2. In Python, what does the `__doc__` attribute provide for a function?

a) Documentation string of the function

b) Default arguments

c) Function name

d) Module name

Q3. What will be the output of the following Python code?

def outer_function(x):
    def inner_function(y):
        return x + y
    return inner_function

result = outer_function(5)(3)
print(result)

a) 8

b) 15

c) 3

d) 53

Q4. What is the purpose of the `random` module in Python?

a) Generating pseudo-random numbers

b) Sorting lists in random order

c) Shuffling elements in a list

d) Performing random mathematical operations

Q5. What will be the output of the following Python code?

def power(x, n=2):
    return x ** n

result = power(4, 3)
print(result)

a) 64

b) 16

c) 8

d) 12

Q6. In Python, how can you read a JSON file?

a) `open("file.json", "r")`

b) `json.read("file.json")`

c) `with open("file.json", "r") as file:`

d) `file = open("file.json", "read")`

Q7. What is the purpose of the `map` function in Python?

a) Applies a function to each element in an iterable

b) Creates a map of values to keys

c) Generates a list of integers

d) Concatenates two lists

Q8. What is the purpose of the `global` keyword in Python?

a) Declaring a variable as global

b) Importing global modules

c) Indicating a global function

d) Accessing global variables inside a function

Q9. What will be the output of the following Python code?

string = "hello world"
result = string.split()
print(result)

a) 'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd'

b) ['hello', 'world']

c) 'hello world'

d) ['h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd']

Q10. In Python, what is the purpose of the `finally` block in a `try` and `except` statement?

a) Executing code regardless of whether an exception occurs or not

b) Handling exceptions

c) Defining alternative code to execute when an exception occurs

d) Terminating the program

Q11. What will be the output of the following Python code?

numbers = [1, 2, 3, 4, 5]
result = list(map(lambda x: x * 2, numbers))
print(result)

a) [1, 4, 9, 16, 25]

b) [2, 4, 6, 8, 10]

c) [2, 4, 6, 8, 10]

d) [1, 2, 3, 4, 5]

Q12. In Python, what is the purpose of the `*args` in a function definition?

a) Denotes keyword arguments

b) Represents a tuple of positional arguments

c) Specifies default arguments

d) Used for variable-length argument lists

Q13. What will be the output of the following Python code?

def greet(name="Guest"):
    return f"Hello, {name}!"

result = greet("Alice")
print(result)

a) "Hello, Guest!"

b) "Hello, Alice!"

c) "Hello, World!"

d) "Hello, {name}!"

Q14. What is the purpose of the `__name__` attribute in Python?

a) Returns the name of the module

b) Provides the name of the class

c) Retrieves the name of the function

d) Indicates whether the script is being run as the main program

Q15. What will be the output of the following Python code?

import math
result = math.sqrt(16)
print(result)

a) 4

b) 8

c) 16

d) 2

Q16. In Python, what does the `__repr__` method do?

a) Converts an object to a string representation

b) Defines the representation of an object for debugging

c) Compares objects for equality

d) Initializes an object

Q17. What is the purpose of the `json.dumps` function in Python?

a) Loads JSON data from a file

b) Dumps Python data into a JSON string

c) Parses a JSON string into a Python object

d) Encodes JSON data

Q18. What will be the output of the following Python code?

def add_numbers(*args):
    return sum(args)

result = add_numbers(1, 2, 3, 4, 5)
print(result)

a) 15

b) 10

c) 1

d) (1, 2, 3, 4, 5)

Q19. In Python, what does the `__len__` method do?

a) Defines the length of a list

b) Returns the number of elements in an iterable

c) Retrieves the length of a string

d) Initializes the length of a tuple

Q20. What is the purpose of the `range` function in Python?

a) Creates a range object with a specified start and end

b) Generates a random range of numbers

c) Creates a sequence of numbers

d) Checks if a number is within a specified range

Q21. What will be the output of the following Python code?

numbers = [1, 2, 3, 4, 5]
result = list(filter(lambda x: x % 2 == 0, numbers))
print(result)

a) [1, 3, 5]

b) [2, 4]

c) [1, 2, 3, 4, 5]

d) [2, 4, 6]

Q22. In Python, what is the purpose of the `os.path.join` function?

a) Concatenates strings

b) Joins path components into a single path

c) Extracts the file extension from a path

d) Checks if a file exists

Q23. What will be the output of the following Python code?

def square_numbers(nums):
    return [num ** 2 for num in nums]

numbers = [1, 2, 3, 4, 5]
result = square_numbers(numbers)
print(result)

a) [1, 4, 9, 16, 25]

b) [2, 4, 6, 8, 10]

c) [1, 2, 3, 4, 5]

d) [1, 8, 27, 64, 125]

Q24. In Python, what is the purpose of the `shutil` module?

a) Provides access to mathematical functions

b) Allows interaction with the operating system

c) Manages file operations

d) Performs string manipulation

Q25. What will be the output of the following Python code?

def factorial(n):
    return 1 if n == 0 else n * factorial(n - 1)

result = factorial(5)
print(result)

a) 10

b) 120

c) 25

d) 30

Q26. In Python, what is the purpose of the `__init__` method in a class?

a) Initializes the class object

b) Creates a new instance of the class

c) Defines the representation of an object

d) Compares objects for equality

Q27. What is the purpose of the `requests` module in Python?

a) Generates random numbers

b) Sends HTTP requests

c) Performs string formatting

d) Executes system commands

Q28. What will be the output of the following Python code?

string = "hello"
result = string.upper()
print(result)

a) "HELLO"

b) "hello"

c) "Hello"

d) "h, e, l, l, o"

Q29. In Python, what is the purpose of the `time` module?

a) Manipulates date and time information

b) Measures the execution time of a program

c) Performs mathematical operations

d) Handles user input/output

Q30. What will be the output of the following Python code?

nums = [1, 2, 3, 4, 5]
result = sum(num ** 2 for num in nums)
print(result)

a) 15

b) 55

c) 30

d) 85