Exam (COMP10) (PHINMA)

• Who created Python and when was it first released?

  Guido van Rossum created Python, and it was first released in 1991.
• What are the main characteristics of Python?

  Python is a high-level, interpreted programming language known for its readability and simplicity.
• What is the latest version of Python as of August 2024?

  The latest version of Python as of August 2024 is Python 3.12.
• What symbol is used to start a single-line comment in Python?

  The # symbol is used to start a single-line comment in Python.
• Why are comments used in Python code?

  Comments are used to explain code and are ignored by the interpreter.
• What are the built-in variable types in Python?

  • Integer (int): Whole numbers (e.g., x = 10)
  • Floating Point (float): Decimal numbers (e.g., y = 3.14)
  • String (str): Text (e.g., name = "John")
  • Boolean (bool): True or False (e.g., is_active = True)
  • List (list): Ordered collection of items (e.g., numbers = [1, 2, 3])
  • Dictionary (dict): Collection of key-value pairs (e.g., person = {"name": "John"})
• What is a dictionary in Python?

  A dictionary is a collection of key-value pairs, enclosed in curly braces.
• How do you convert a string to an integer in Python?

  You can convert a string to an integer using $int(num\_str)$.
• What are the rules for naming variables in Python?

  1. Names must start with a letter (a-z, A-Z) or an underscore.
  2. Names can be followed by letters, digits (0-9), or underscores.
  3. Names are case-sensitive.
  4. Avoid using Python reserved words (keywords) as variable names.
• What are the applications and use cases of Python?

  • Scientific Computing and Research
  • Data Science and Machine Learning
  • Web Development
  • Automation and Scripting
  • Software Development
  • Networking
• What is the purpose of an Integrated Development Environment (IDE)?


  • Helps you write, debug, and manage your code more efficiently.
  • Popular IDEs for Python include PyCharm and Visual Studio Code.
• What is the purpose of indentation in Python?

  Indentation is used to define the structure of the code, particularly for blocks of code.
• How are variables declared and initialized in Python?

  In Python, you create a variable by assigning it a value using the assignment operator =.
• What are the different data types in Python?

  • Integer (int): Whole numbers (e.g., num = 42)
  • Float (float): Decimal numbers (e.g., pi = 3.14159)
  • String (str): Text (e.g., greeting = "Hello, World!")
  • Boolean (bool): Represents True or False (e.g., is_valid = False)
  • List (list): Ordered collection of items (e.g., fruits = ["apple", "banana", "cherry"])
  • Tuple (tuple): Ordered, immutable collection of items (e.g., coordinates = (10, 20))
• What are the arithmetic operators in Python?

  • Addition: ` + `
  • Subtraction: ` - `
  • Multiplication: ` * `
  • Division: ` / `
  • Integer Division: ` // `
  • Modulus: ` % `
  • Exponentiation: ` ** `
• What is the result of $a =$$10, b =$$3; a +$$b$ in Python?


  $13$
• What is the result of $a =$$10, b =$$3; a - b$ in Python?


  $7$
• What is the result of $a =$$10, b =$$3; a *$$b$ in Python?


  $30$
• What is the result of $a =$$10, b =$$3; a / b$ in Python?


  $\frac{10}{3}$
• What is the result of $a =$$10, b =$$3; a // b$ in Python?


  $3$
• What is the result of $a =$$10, b =$$3; a$ in Python?


  $1$
• What is the result of $a =$$10, b =$$3; a *$$*$$b$ in Python?


  $1000$
• What are the comparison operators in Python?

  • Equal to: ==
  • Not equal to: !=
  • Greater than: >
  • Less than: <
  • Greater than or equal to: >=
  • Less than or equal to: <=
• What are the logical operators in Python?

  • And: and
  • Or: or
  • Not: not
• What are conditional statements in Python?

  • Conditional statements allow you to execute code based on certain conditions.
• What is a variable in programming?

  A variable is a symbolic name associated with a value, acting as a placeholder for data.
• How are variables in Python typed?

  Variables in Python are dynamically typed, meaning you don't have to explicitly declare the type.
• How do you declare and initialize a variable in Python?

  You declare and initialize a variable by assigning it a value using the assignment operator =.
• What is the syntax for concatenating strings in Python?

  You can concatenate strings using the + operator.
• What is the output of $print("Hello " + full\_name)$ if $full\_name =$$"Bro Code"$?


  $Hello Bro Code$
• What is the assignment operator in Python?

  The assignment operator in Python is =.
• What is the significance of the assignment operator in Python?

  The assignment operator is used to assign a value to a variable.
• What is the purpose of the print function in Python?

  The print function is used to output data to the console.
• How does Python handle variable types?

  Python infers the variable type from the assigned value, so explicit declaration is not needed.
• What is the difference between a list and a tuple in Python?

  A list is mutable (can be changed), while a tuple is immutable (cannot be changed).
• What is the syntax for creating a list in Python?

  A list is created using square brackets, e.g., $fruits =$$["apple", "banana", "cherry"]$.
• What is the syntax for creating a tuple in Python?

  A tuple is created using parentheses, e.g., $coordinates =$$(10, 20)$.
• What is the syntax for creating a set in Python?

  A set is created using curly braces, e.g., $my_set =$${1, 2, 3}$.
• What is the purpose of a set in Python?

  A set is an unordered collection of unique items.
• What is the purpose of control structures in Python?

  Control structures allow you to execute code based on certain conditions.