Database administrator, mature lady, glasses, short hair, formal wear, sitting, chair, desk, multiple monitors, keyboard, mouse, papers, books, DBMS diagram, entity-relationship model, relational database, distributed database, cloud storage, data warehouse, data mining, query optimization, indexing, normalization, denormalization, transaction management, concurrency control, backup recovery, data security, encryption, access control, network topology, LAN, WAN, Wi-Fi, routers, switches, servers, storage devices, architecture diagram, 3D visualization, isometric view, soft lighting, atmospheric perspective.