Python Basics for Beginners

What is a variable in Python?

• A variable in Python is a named location in memory used to store data.

• A variable in Python is a type of function.

• A variable in Python is a fixed value that cannot change.

• A variable in Python is a command used to execute code.

How do you define a function in Python?

• A function in Python is defined using the syntax: def function_name(parameters): followed by an indented block of code.

• Functions in Python are created with the syntax: create function_name(parameters) and a closing bracket.

• A function in Python is defined using the syntax: function_name(parameters) followed by a return statement.

• To define a function in Python, use the syntax: define function_name with parameters and no indentation.

What is the purpose of a for loop?

• To store data in a database.

• To create a new variable in a program.

• To define a function in programming.

• The purpose of a for loop is to repeat a block of code a specific number of times or for each item in a collection.

How does a while loop differ from a for loop?

• A while loop checks the condition before each iteration, while a for loop is used for a known number of iterations with initialization and increment in one line.

• A while loop requires a counter variable, while a for loop does not.

• A while loop is always faster than a for loop.

• A for loop can only iterate over arrays, while a while loop can iterate over any data type.

How can you concatenate two strings in Python?

• Use the '-' operator to concatenate strings.

• Use the '*' operator to concatenate strings.

• Use the 'concat()' function to concatenate strings.

• Use the '+' operator to concatenate strings.

What function would you use to find the length of a string?

• size()

• lengthOf()

• len()

• count()

What keyword is used to define a function?

• def (Python) / function (JavaScript)

• method (JavaScript)

• func (Python)

• define (Ruby)

How do you iterate over a list using a for loop?

• for item from my_list:

• foreach item in my_list do

• for item in my_list:

• for each item in my_list:

What will be the output of print('Hello' + ' World')?

• Hello, World

• Hello World!

• HelloWorld

• Hello World

What is the output of the expression 3 * 'Hello'?

• 3 * Hello

• 3Hello

• HelloHelloHello

• Error: Unsupported operation