Network
What OSI model means
The OSI Model (Open Systems Interconnection Model) divides network communication into seven layers — from physical hardware (Layer 1) up to application software (Layer 7). Each layer handles a specific function, such as data routing, session management, or encryption. MSP technicians use the OSI model to systematically troubleshoot network issues and map how devices interact across infrastructure. Learn more: https://en.wikipedia.org/wiki/OSI_model