Cisco Network Service Architectures Arch Foundation Learning Guide, Modern conference room, professional training atmosphere, Large wooden table, ergonomic chairs, whiteboard, projector screen, Cisco routers, switches, servers, laptops, tablets, smartphones, Network topology diagrams, cables, wires, fiber optics, Professional instructor, experienced IT engineer, mature adult, Short hair, glasses, beard, formal business attire, Confident posture, lecturing, explaining, drawing on whiteboard, Softbox lighting, natural daylight, panoramic view, 3/4 composition, HD resolution, realistic textures, detailed background.