Send us your message.X
We have your course. Please kindly fill below your contact details to receive full course information and pricing.
The Cisco Certified Network Associate (CCNA) methodology. CCNA use the OSI Reference Model which has 7 layers:
Layer 1 Physical – this layer indicated the standards from other organisations referred by OSI. It deals with the transmission medium physical characteristics
Layer 2 Data link – This layer is concerned with getting data across a particular medium or link
Layer 3 Network – This outlines the end-to-end delivery of packets
Layer 4 Transport – This layer includes the choice of protocols that can provide error recoveries
Layer 5 Session – This layer outline how to start, control, and end sessions (conversations)
Layer 6 Presentation – This shows data formats, including; EBCDIC text, ASCII text, binary, JPEG, and BCD
Layer 7 Application – This explain how an application communicates with other computers by implementing OSI application layer concepts
Click here to save up to 55%!