单项选择题 Which IBM tape interface architecture has the best performance and distance characteristics? （）

单项选择题 Which IBM System Storage disk system is appropriate for consolidation of heterogeneous host environments including Windows, HP-UX and z/OS?（）

单项选择题 A company needs additional storage for a block I/O based database application. The application has low I/O bandwidth requirements across the campus. The customer has a TCP/IP infrastructure and is interested in low-cost products that are compatible with its environment. Which technology is most appropriate for this customer?（）