A company is moving to new location. The systems administrator has provided the following server room
requirements to the facilities staff:
Consistent power levels in case of brownouts or voltage spikes
A minimum of 30 minutes runtime following a power outage
Ability to trigger graceful shutdowns of critical systems
Which of the following would BEST meet the requirements?


A. Maintaining a standby, gas-powered generator
B. Using large surge suppressors on computer equipment
C. Configuring managed PDUs to monitor power levels
D. Deploying an appropriately sized, network-connected UPS device