Python Fundamentals Quiz

What are the different data types in Python?

• int, float, complex, str, bool, list, tuple, dict, set

• array

• char

• double

Answer explanation

The different data types in Python include int, float, complex, str, bool, list, tuple, dict, and set. 'array', 'char', and 'double' are not standard data types in Python.

How do you declare a variable in Python?

• value = variable_name

• declare variable_name

• variable = value

• variable_name = value

Answer explanation

To declare a variable in Python, you use the syntax variable_name = value.

What are the control structures in Python?

• switch statements

• until loops

• catch/finally blocks

• if statements, for loops, while loops, try/except blocks

Answer explanation

The control structures in Python include if statements, for loops, while loops, and try/except blocks.

Can you give an example of a Python keyword?

• loop

• function

• if

• print

Answer explanation

The correct example of a Python keyword is 'if'. Keywords are reserved words in Python that have special meanings and cannot be used as identifiers.

How do you use the print statement in Python?

• output("Hello, World!")

• display("Hello, World!")

• print("Hello, World!")

• show("Hello, World!")

Answer explanation

To use the print statement in Python, you should use print("Hello, World!"). This function is used to display output in the console.

What is the purpose of the input function in Python?

• To allow user input during program execution.

• To display output on the console

• To perform complex mathematical calculations

• To handle file operations

Answer explanation

The purpose of the input function in Python is to allow user input during program execution, making it the correct choice among the options provided.

What is the syntax for an if-elif statement in Python?

• if condition1:

  # code block

  elif condition2:

  # code block

  else:

  # code block

• if condition1:

  # code block

  else if condition2:

  # code block

  else:

  # code block

• if condition1:

  # code block

  else if condition2:

  # code block

• if condition1:

  # code block

  elif condition2: # code blockif condition1

  # code block

  elif condition2

  # code block

Answer explanation

The correct syntax for an if-elif statement in Python is: if condition1: # code block elif condition2: # code block else: # code block

What is the output of the following code: print(3 > 5)

• True

• False

• Error

• 0

Answer explanation

The output of the code is False because 3 is not greater than 5, so the comparison 3 > 5 evaluates to False.

What is the output of the following code:

x = 5 if x < 0: print('Negative') elif x == 0: print('Zero') else: print('Positive')

• Positive

• Negative

• Nonexistent

• Neutral

Answer explanation

The output of the code will be 'Positive' since the value of x is 5, which is greater than 0, so the else block will be executed.

How do you check if a variable is of a certain data type in Python?

• check_type(x, int)

• validate(x, int)

• isinstance(x, int)

• type(x) == int

Answer explanation

To check if a variable is of a certain data type in Python, you use isinstance(x, int). This function returns True if x is an instance of the int class.