– Windows (10/11/7/8/1): Used for system administration, testing, and desktop software development.
– Linux: Essential for development, servers, and networking tasks.
– Ubuntu: Preferred Linux distribution for development and deployment environments.
– Elementary OS: Lightweight OS used for minimalistic workflows.
– Linux Mint: User-friendly Linux distribution for productivity and development.
– Debian: Robust Linux distro for server and enterprise-level tasks.

For detailed descriptions of the certifications, click here.