It is used for developing system applications. It is widely used for developing desktop applications.
C++ is the language that is used everywhere but mainly in systems programming and embedded systems.
Python is a general purpose and high level programming language. You can use Python for developing desktop GUI applications, websites and web applications.
HTML (the Hypertext Markup Language) and CSS (Cascading Style Sheets) are two of the core technologies for building Web pages
Most often Java is used to build large enterprise class applications. Java works great within corporate environments, or if you're building a very large scale system.
PHP is a server side scripting language. that is used to develop Static websites or Dynamic websites or Web applications
Data scientists examine which questions need answering and where to find the related data.
Cyber security is the practice of defending computers, servers, mobile devices, electronic systems, networks, and data from malicious attacks
AJAX allows web pages to be updated asynchronously by exchanging data with a web server behind the scenes.