Gary lives in an area that receives high rainfall throughout the year. which device would be useful to him to maintain his computer? a. cd-rom b. ups c. motherboard d. system unit fan e. scanner

The correct answer is B.UPS

A UPS or Uninterruptable Power supply makes sure that you have backup in case there is a power outage in your area. It provides ample time for you to save all files before shut down.

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

Ithink the answer is a.