SK0-004 · Question #35
A server's runtime during power outages is too short to shut down properly. A system technician is asked to remediate the problem. Which of the following would be the result of adding additional…
The correct answer is B. Extended uptime. Adding batteries to a UPS increases the total stored energy capacity, directly extending the amount of time the server can run during a power outage.
Question
A server's runtime during power outages is too short to shut down properly. A system technician is asked to remediate the problem. Which of the following would be the result of adding additional batteries to the UPS?
Options
- AIncreased load balancing
- BExtended uptime
- CGreater efficiency
- DIncreased power output
How the community answered
(38 responses)- A3% (1)
- B89% (34)
- C8% (3)
Why each option
Adding batteries to a UPS increases the total stored energy capacity, directly extending the amount of time the server can run during a power outage.
Load balancing distributes electrical load across multiple circuits or power supplies and is not affected by adding batteries to a UPS.
A UPS delivers power from its battery bank when mains power fails - adding batteries increases the amp-hour (Ah) capacity of that bank. With more stored energy available, the UPS can sustain the connected load for a longer duration, giving administrators sufficient time to gracefully shut down servers or for power to be restored.
UPS efficiency relates to power conversion losses in the inverter and rectifier circuits, not the size of the battery bank.
The UPS power output capacity (watts) is determined by its inverter rating, not the battery capacity - adding batteries does not increase the maximum wattage the unit can deliver.
Concept tested: UPS battery capacity and runtime extension
Source: https://www.apc.com/us/en/faqs/FA158852/
Topics
Community Discussion
No community discussion yet for this question.