Control Flow: Conditional Statements Flashcards

What is the output of the following nested conditional? x, y = 3, 7 if x 5: print('A') else: print('B') else: print('C')

Answer: A

Both `x 5` are True, so the innermost branch prints 'A'.

What will this print? num = 0 if num: print(num) else: print('zero')

Answer: zero

0 is falsy, so the else branch runs and prints 'zero'.

Which statement about Python's `match` statement (Python 3.10+) is TRUE?

Answer: It provides structural pattern matching similar to switch in other languages

Python 3.10 introduced `match`/`case` for structural pattern matching, which can replace complex if/elif chains.

What is the output? x = 5 result = 'big' if x > 10 else 'medium' if x > 3 else 'small' print(result)

Answer: medium

x > 10 is False, so the first else is evaluated; x > 3 is True, so 'medium' is returned.

What is the correct way to check if a key exists in a dictionary before using it in an if statement?

Answer: if key in dict:

The `in` operator checks for key membership in a dictionary in Python.

What does the following code print? a, b = True, False if a and not b: print('X') else: print('Y')

Answer: X

`a` is True and `not b` is True, so `a and not b` is True and 'X' is printed.

In Python, which of the following values is considered TRUTHY?

Answer: "0"

A non-empty string like "0" is truthy; 0, empty list [], and empty string "" are all falsy.