Tiered network infrastructure, 3 layers of defense, robust security system, modern data center, sleek metal racks, rows of servers, blinking LED lights, complex cable management, three distinct zones, internet-facing perimeter network, application DMZ, internal trusted network, firewalls at each tier, Cisco ASA devices, Fortinet appliances, Dell servers, HP switches, patch cables, ventilated server rooms, air conditioning units, raised flooring, cold aisles, warm lighting, 3/4 composition, high-angle shot, depth of field, futuristic ambiance, neon glow.