Cloud computing, AWS architecture, 5 pillars, security, operational excellence, reliability, performance efficiency, cost optimization, modern data center, futuristic background, sleek lines, metallic surfaces, glowing blue lights, servers, cables, routers, switches, computer rooms, air conditioning units, backup power systems, virtual private cloud, hybrid cloud, cloud migration, DevOps, agile development, scalability, availability, durability, fault tolerance, disaster recovery.