ul li1 Session 1Network models and protocolsbr Presented bybr Muhammad A Daifbr 3rd year CSEDbr CCNAbr li ul p2 Session objectivesbr Protocols definition and examplesbr Network architectures and modelsbr p ul liOSI Reference modelli ul p3 TCPIP3 Encapsulation and headersbr p ul liWhy this topic li ul