WordPress is an Open Source Content Management System (CMS) and a blogging tool, based on PHP and MySQL. It is free of cost, and you can use it for any personal and commercial website.
WordPress is the most popular blogging system and used for more than 60 million websites. It is licensed under GPL.
For an interview question about WordPress, a correct answer would be:
“WordPress is a free and open-source content management system (CMS) that allows users to easily create, manage, and customize websites and blogs. It is built on PHP and MySQL and offers a user-friendly interface, extensive plugin architecture, and a wide range of themes, making it highly adaptable for various types of websites, from personal blogs to complex e-commerce platforms. WordPress powers over one-third of all websites on the internet, making it one of the most popular and widely used CMS platforms worldwide.”