Programming Functions Quiz

What will be the output of the function call greet("Bob") if the function is defined as def greet(name="Guest"): print(f"Hello, {name}!")

• Hello, Bob!

• Hello, Guest!

• Syntax Error

• Hello, Alice!

Which of the following statements correctly defines a function that returns the square of its argument?

• def square(x): return x to the power of 2

• def square(x): return x + x

• def square(x): return x ** 2

• def square(x): return x - x

What will be the output of check_even_odd(4) if check_even_odd is defined as def check_even_odd(number): if number % 2 == 0: print(f"{number} is even.") else: print(f"{number} is odd.")?

• 4 is odd.

• 4 is even.

• Syntax Error

• None

Which of the following functions correctly calculates the factorial of a number n?

• def factorial(n): return n * (n-1)

• def factorial(n): for i in range(1, n + 1): n *= i return n

• def factorial(n): result = 1 for i in range(1, n + 1): result *= i return result

• def factorial(n): result = 1 for i in range(n): result *= i return result

In the function def add_numbers(a, b): return a + b, what will be the output of print(add_numbers(2, 3))?

• 23

• 5

• TypeError

• 6

What will be the output of the function call reverse_string("Python") if the function is defined as def reverse_string(s): return s[::-1]?

• nohtyP

• Python

• Syntax Error

• Pnohty

If count_vowels("Hello World") is called, what will be the output given the function def count_vowels(s): vowels = "aeiouAEIOU" count = 0 for char in s: if char in vowels: count += 1 return count?

• 2

• 3

• 4

• 5

What will be the output of calculate_area(3, 4) if the function is defined as def calculate_area(length, width): return length * width?

• 12

• 7

• 34

• Syntax Error

Which function call will print "Hello, Guest!" given the function def greet(name="Guest"): print(f"Hello, {name}!")?

• greet("John")

• greet()

• greet("Alice")

• greet("Bob")

In the function def power(base, exponent): return base ** exponent, what will be the output of print(power(2, 3))?

• 8

• 6

• 9

• 5