When multiple windows are open, ________ can be used to minimize all but the active window

To replace a defective UPS, the network administrator must take the switch offline. The administrator wants to be able to perform maintenance UPS in the future without affecting the availability of the attached switch. Which of the following would BEST allow this to happen?

A. Add a redundant power supply to the switch B. Implement stacking on the switches in the rack C. Add a second UPS into the rack D. Install a power converter for the switch

A ________ is a dispatchable unit of work within a process that includes a processor context and its own data area for a stack.

A. process B. process switch C. thread D. thread switch