Databricks Certified Data Engineer - Associate

Explanation

The correct answer is D because:

1. Comparison operator: In Python, to check equality, we use == (double equals) not = (single equals). The single equals = is for assignment, not comparison.

2. Boolean variable check: When checking if a boolean variable is True, we can simply use the variable name itself in the condition. review_period will evaluate to True if it contains the boolean value True. We don't need to compare it to the string "True" or use == True.

3. Logical operator: The and operator is the correct way to combine multiple conditions in Python.

Let's analyze each option:

• A: Incorrect because it uses = (assignment) instead of == (comparison)
• B: Incorrect because it uses = for assignment and compares review_period to the string "True" instead of checking the boolean value
• C: Incorrect because it compares review_period to the string "True" instead of checking the boolean value
• D: CORRECT - Uses == for comparison and correctly checks the boolean variable
• E: Incorrect syntax - uses = for assignment, & instead of and, and has malformed syntax with : = "True";

Key Python concepts:

• Use == for equality comparison
• Boolean variables can be checked directly without comparison operators
• Use and for logical conjunction
• Python is case-sensitive and type-sensitive (boolean True ≠ string "True")