A large bank with two geographically dispersed data centers is concerned about major power disruptions at both locations. Every day each location experiences very brief outages that last for a few seconds. However, during the summer a high risk of intentional under-voltage events that could last up to an hour exists, particularly at one of the locations near an industrial smelter. Which of the following is the best solution to reduce the risk of data loss?
A Power Distribution Unit (PDU) is the best solution for this scenario. PDUs can manage and distribute electrical power to data center equipment. They also come with circuitry to provide protection against spikes, surges, and brownouts - which includes handling under-voltage events like the ones described in the question. While generators provide backup power for prolonged outages, they take some time to start up and wouldn't be effective for brief outages or handling under-voltage events. Daily backups do not prevent data loss during power events, they only help recover data afterwards. Thus, PDU is the most appropriate solution to ensure consistent power quality and reduce the risk of data loss under the given conditions.
*On Exam, Taken On July 31, 2023*
was Generator one of the multiple choice?
Thanks for sharing 🙏
Do you go through the answers of what you got right and wrong after the exam? Because I strongly fee like this is A.
B. Generator Same as Q.159 https://www.examtopics.com/discussions/comptia/view/79201-exam-sy0-601-topic-1-question-159-discussion/ But in this Q.159, UPS is an option, which is the answer, but if UPS not an option like this one here, Generator is the answer.
Took exam and pass 777 May 20th 2024, unfortunately for me only 10 or so questions came from dump. My advice to you read discussions and every answer know why the answer is and why not the others
was is 601 or 701?
701:for sure
PDU's are designed to produce power during over/under voltage events along with their general conversion. While a generator would help, they are designed for when power is LOST, not low. Additionally to preserve data, and minimize loss generators aren't help, because they kick on AFTER power is lost.
Given the concerns regarding major power disruptions at both data center locations, including brief outages and potential intentional under-voltage events lasting up to an hour, the best solution to reduce the risk of data loss is: B. Generator. Deploying generators at both data center locations would provide backup power during power outages or intentional under-voltage events. Generators can sustain operations for an extended period, ensuring continuous power supply to critical infrastructure such as servers, storage systems, and networking equipment. This helps prevent data loss by maintaining the availability of essential services during power disruptions, allowing the data centers to continue operating until power is restored.
Folks, this is not generator. Generators are designed to wait several minutes after a power loss before they spin up. Also, it takes longer than "a few seconds" to power up a generator so it would be completely useless in the brief daily outages. The power would be back on before the generator ever completed it's start up. Having said that, the best option left is a PDU.
I think the answer is C. The question is taking about power outage (in that case it would have been generator). The issue here is under voltage hence PDU will be the best fit. I stand corrected.
Correction The question is *NOT* talking about power outage..
PDU seems like the best answer here to me based on CompTIA's explanation of generators and PDUs: "In the event of a power outage, a UPS must provide transitionary power, as a backup generator cannot be cut-in fast enough." "[PDUs] come with circuitry to "clean" the power signal, provide protection against spikes, surges, and brownouts, and can integrate with uninterruptible power supplies (UPSs)."
The closest answer is B but generators usually take a few minutes to kick in. A UPS would be a better choice.
B. Generator These are the only two options that are viable: B. Generator D. Daily backups Generator is the better option because it likely would result in the smallest amount of data loss. Without a UPS there is definitely going to be data loss because there will be a delay between the time the undervoltage event starts and the time that generator can't start providing the necessary power. That would likely result in some data loss. But it would likely result in less data loss compared to relying only on backups.
No doubt it's B. Some voted for PDU, however, PDU is just the "outlet" or "plug-in" for the unit, itself needs a power source, which is generator or UPS or something like that
She is right
I was choosing between B and C, the reason not PDU (Power Distribution Unit) is because itself do not generate electricity to last enough for an hour. So I will go with B.
The time allowed by a UPS should be sufficient to failover to an alternative power source, such as a standby generator. If there is no secondary power source, UPS will at least allow the administrator to shut down the server or appliance properly—users can save files, and the OS can complete the proper shut down routines.
Generator
From the official CompTIA student handbook on PDUs: These come with circuitry to "clean" the power signal, provide protection against spikes, surges, and brownouts, and can integrate with uninterruptible power supplies (UPSs).
B. generator: the possibility of intentional under-voltage events that could last up to an hour. During such extended power disruptions, relying solely on backup batteries may not be sufficient to keep critical systems and data centers running. Generators can provide a continuous and reliable source of power for an extended duration, ensuring that operations continue without interruption. Data centers require stable power to operate efficiently and avoid potential data corruption or loss. A sudden loss of power can lead to data corruption, especially if servers and storage systems are not shut down properly. Generators can maintain a stable power supply, preventing data loss in the event of extended outages.