Mastering Python Fundamentals

What is the correct file extension for Python files?

• .txt

• .cpp

• .py

• .java

Which of the following is a valid variable name in Python?

• variable1

• 1variable

• variable name

• variable-name

What is the output of the expression 3 * 1 ** 3?

• 1

• 9

• 0

• 3

How do you create a list in Python?

• You create a list in Python using square brackets, e.g., my_list = [1, 2, 3].

• You create a list in Python using parentheses, e.g., my_list = (1, 2, 3).

• You create a list in Python by using the list() function without any arguments.

• You create a list in Python using curly braces, e.g., my_list = {1, 2, 3}.

What keyword is used to define a function in Python?

• method

• def

• define

• function

Which of the following is not a built-in data type in Python?

• tuple

• list

• array

• dictionary

What is the purpose of the 'if' statement in Python?

• To import modules in Python.

• To execute code conditionally based on a boolean expression.

• To define a function in Python.

• To create a loop in Python.

How do you read a file in Python?

• Use 'open(filename)' to read a file directly.

• Use 'with open(filename, 'r') as file: content = file.read()' to read a file in Python.

• Read a file using 'file.read(filename)' method.

• Use 'import file' to access file contents.

Which operator is used for string concatenation in Python?

• &

• +

• -

• |

What is the difference between a list and a tuple in Python?

• The main difference is that lists are mutable and tuples are immutable.

• Lists can contain only numbers while tuples can contain any data type.

• Tuples are created using square brackets while lists use parentheses.

• Lists are faster than tuples in all operations.