9 Python function-based quiz questions

1. Basic Function Syntax

What will be the output of the following code?

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

a. Hello, Guest!, Hello, John!
b. Hello, John!, Hello, Guest!
c. Hello, Guest!, Hello, Guest!
d. Error

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2. Positional and Keyword Arguments

What does the following function call print?

def calculate(a, b=5, c=10):
    return a + b + cprint(calculate(3, c=7))

a. 15
b. 20
c. 25
d. Error

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3. Function with Variable Arguments

What will be the output of this code?

def add_all(*args):
  return sum(args)print(add_all(1, 2, 3, 4))

a. 10
b. [1, 2, 3, 4]
c. Error
d. 1, 2, 3, 4

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4. Returning Multiple Values

What will print(result) output?

def divide(a, b):
    quotient = a // b
    remainder = a % b
    return quotient, remainder

result = divide(10, 3)
print(result)

a. 10, 3
b. (3, 1)
c. 3.1
d. Error

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5. Scope of Variables

What will the following code print?

x = 5

def update_value():
    x = 10
    print(x)

update_value()
print(x)

a. 10, 5
b. 10, 10
c. 5, 5
d. Error

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6. Default and Non-Default Arguments

Why does this code throw an error?

def example(a=1, b): return a + b

a. b is not assigned a default value
b. Default arguments must come after non-default arguments
c. Both a and b must have default values
d. No error

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7. Lambda Functions

What will the following code print?

double = lambda x: x * 2print(double(4))

a. 2
b. 4
c. 8
d. Error

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8. Nested Functions

What will the following code output?

def outer_function(x):
    def inner_function(y):
        return y + 1
    return inner_function(x) + 1
print(outer_function(5))

a. 6
b. 7
c. 8
d. Error

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9. Anonymous Functions with map()

What is the result of the following code?

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

a. [1, 4, 9, 16]
b. [2, 4, 6, 8]
c. None
d. Error

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1. Basic Function Syntax

Answer: a. Hello, Guest!, Hello, John!

Explanation:

• Default value Guest is used when no argument is passed.
• Passing "John" overrides the default value.

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2. Positional and Keyword Arguments

Answer: b. 20

Explanation:

• a = 3, b = 5 (default), c = 7 (overrides the default value of 10).
• Result: 3 + 5 + 7 = 20.

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3. Function with Variable Arguments

Answer: a. 10

Explanation:

• *args collects all arguments into a tuple.
• sum(args) calculates the sum: 1 + 2 + 3 + 4 = 10.

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4. Returning Multiple Values

Answer: b. 

(3, 1)

Explanation:

• The function returns a tuple (quotient, remainder).
• 10 // 3 = 3 (quotient), 10 % 3 = 1 (remainder).

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5. Scope of Variables

Answer: a. 10, 5

Explanation:

• x = 10 inside the function is local and does not affect the global x.
• Outside the function, x = 5.

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6. Default and Non-Default Arguments

Answer: b. Default arguments must come after non-default arguments

Explanation:

• In Python, arguments with default values (like a=1) must appear after those without defaults (like b).

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7. Lambda Functions

Answer: c. 8

Explanation:

• The lambda function doubles the input: 4 * 2 = 8.

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8. Nested Functions

Answer: b. 7

Explanation:

• inner_function(5) returns 5 + 1 = 6.
• Adding 1 in outer_function: 6 + 1 = 7.

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9. Anonymous Functions with map()

Answer: a. [1, 4, 9, 16]

Explanation:

• The lambda function squares each number in the list:
  [1^2, 2^2, 3^2, 4^2] = [1, 4, 9, 16].