@itvision592: 🚀 OSI Model Data Flow ⚡ Application Layer User interaction ⚡ Presentation Layer Data format encryption ⚡ Session Layer Session control ⚡ Transport Layer Data delivery TCP UDP ⚡ Network Layer IP routing ⚡ Data Link Layer MAC addressing ⚡ Physical Layer Signals and transmission ⚡ Flow Data moves top to bottom sender ⚡ Flow Data moves bottom to top receiver #Networking #CCNA #ITVision #NetworkingwithKhalid 👉 Join WhatsApp Group https://chat.whatsapp.com/LeIXy2J432V1ttBPMvT129