Question 1

To define a function to calculate area of a rectangle, they should begin with:

• def area_rectangle(length, width): ✅

• return area_rectangle(length, width): ❌

• else area_rectangle(length, width): ❌

• if area_rectangle(length, width): ❌

Explanation:
All Python functions must begin with def function_name(parameters):.

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Question 2

Fill in the blank:

A data professional uses the _____ keyword to make a function produce and save results.

• else ❌

• def ❌

• return ✅

• if ❌

Explanation:
return outputs a value from a function.

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Question 3

Best practices for writing clean code (Select all):

• Modularity ✅

• Clarity ✅

• Redundancy ❌

• Reusability ✅

Explanation:
Clean code is modular, clear, and reusable — redundancy should be avoided.

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Question 4

Restructuring code while keeping the same functionality is:

• Reprogramming ❌

• Converting ❌

• Refactoring ✅

• Branching ❌

Explanation:
Refactoring improves structure without changing behavior.

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Question 5

Purpose of a docstring:

• Make the function produce new results ❌

• Define the function ❌

• Summarize the function’s behavior and explain arguments + return values ✅

• Run the function ❌

Explanation:
A docstring documents what the function does.

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Question 6

Python comparator for “less than or equal to”:

• = ❌

• == ❌

• != ❌

• <= ✅

Explanation:
<= is the correct operator.

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Question 7

print(23 > 32 and 7 != 5) outputs:

• False ✅

• Not equal ❌

• True ❌

• Equal ❌

Explanation:
23 > 32 → False
7 != 5 → True
(False AND True) → False

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Question 8

An if statement executes code:

• When the condition evaluates to equal ❌

• When the condition evaluates to true ✅

• When the condition evaluates to false ❌

• When the condition evaluates to not equal ❌

Explanation:
Python executes the if block only when the condition is True.

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Question 9

An else statement executes code:

• When the if statement contains a false condition ✅

• When the if contains a true condition ❌

• When the if contains numeric data ❌

• When the if contains text ❌

Explanation:
else runs only if the if condition evaluates to False.

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Question 10

Which code yields identical results to:

Correct answer:

• def is_odd(x):
  if x % 2 == 0:
  return False
  return True ✅

Other options:

• return False if … ❌ (syntax error)

• return True then if … ❌ (unreachable code)

• indentation errors ❌

Explanation:
Removing else but placing return True after the if gives the same behavior.

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🧾 Summary Table

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