You then purchased a new Dell PowerEdge R520 Rack Server. The server is equipped with two Xeon E5-2400 CPUs, 32 GB RAM, four 1 TB SAS hard drives, and two 750-watt power supplies. You have a
21-inch LCD monitor connected to your server. You want a UPS to keep your server running in the
event of a power failure for up to 20 minutes. You prefer a rack-mounted solution. Use the UPS
selector tool at APC’s Web site (a well-known UPS vendor). The UPS selector is at
www. apcc. com/tools/ups_selector/.
Q. which model UPS will work well for this server, and state your reasons.

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability

"computer screen desktop"? what? that phrase makes no sense, and it has nothing to do with modifying system components i assure you.