IoT network architecture, futuristic, modern conference room, presenter, whiteboard, markers, 3/4 composition, softbox lighting, blurred background, minimalistic, simple lines, geometric shapes, clean typography, professional attire, formal wear, glasses, neat hair, minimal makeup, confident posture, pointing gesture, slide presentation, diagram, flowchart, network topology, routers, switches, servers, cloud computing, wireless communication, sensor nodes, smart devices, urban landscape, cityscape, skyscraper, metropolitan area, evening time, panoramic view.