programming 1 , 2 , 3 data structure, advance data sturcture.
mastering all sorts of algorithms, methods and techniques that will allow to write complex projects.
Android development and API

Network engineering CCNA from basic to advance

Master web development nodejsu002 Fexpress Python flask, . net core angularjs reactjs

Linuxu002 FUnix managament and programming

Javau002 FMysql developement

and many more