Python Basics Quiz

What is the syntax to create an empty list in Python?

• ()

• empty()

• {}

• []

Write a MySQL query to select all columns from a table named 'users'.

• SELECT * FROM users;

• SELECT * FROM data;

• SELECT * FROM customers;

• SELECT * FROM info;

What data type is used to store a single character in Python?

• bool

• str

• float

• int

How do you declare a variable in Python?

• variable = value

• variable_name = value

• declare variable_name

• value = variable_name

What is the purpose of a 'for' loop in Python?

• To create a new variable

• To define a function

• To perform mathematical calculations

• To iterate over a sequence and execute a block of code for each item

What is the '==' operator used for in Python?

• It is used for defining functions

• It is used for looping

• It is used for addition

• It is used for comparison.

How do you write an 'if' statement in Python?

• if (condition) {

• if condition:

• if (condition) then:

• if (condition) == True:

What is the correct way to define a list in Python?

• my_list = [1, 2, 3]

• my_list = list(1, 2, 3)

• my_list = {1, 2, 3}

• my_list = (1, 2, 3)

Write a MySQL function to calculate the average of a column in a table.

• SELECT AVG(column_name) FROM table_name;

• SELECT SUM(column_name) FROM table_name;

• SELECT MIN(column_name) FROM table_name;

• SELECT MAX(column_name) FROM table_name;

How do you iterate over keys in a dictionary in Python?

• for key in my_dict.items():

• for key in my_dict:

• for key in my_dict.values():

• for key in my_dict.keys():