🎯 What you'll learn: How networks connect the world, network components and roles, topology diagrams, LAN vs WAN vs Internet, internet connection types, the four pillars of reliable networks, current trends (BYOD, cloud, IoT), security threats overview.
1-A 2-A 3-A 4-A | 5 server 6 Area 7 = Client requests; server provides services 8 = LAN: office network; WAN: links between cities/ISPs 9 = Fault tolerance, scalability, QoS, security | 10 = One network carrying data, voice and video together