Exam SK0-005 topic 1 question 13 discussion

Is C correct? This question is worded so poorly. I copied the passage from Chapter 2: Server Hardware in the CompTIA Server+ Certification All-in-One Exam Guide, Second Edition by Daniel Lachance “Power distribution units (PDUs) provide power outlets to racks in server rooms and data centers. To eliminate a single point of failure, redundant PDUs should be plugged into separate circuits. To extend this point, redundant server power supplies should each plug into separate PDUs. Data centers normally have alternate sources or providers of power, such as diesel generators, in the case of a power outage. Because many different types of items can draw power from PDUs, you should check your PDU’s rating to ensure that your equipment doesn’t draw more power than the PDU’s load capacity can accommodate.”

When you're faced with a power problem with only two additional servers, “Separate the circuits and that's the solution!” How foolish to think that. The problem statement does not say that only one power circuit exists. But by process of elimination, what remains is “A. Separate circuits.”

Answer "A" is the only option. Answer B could still run both servers run off the same load. Answer C is basically just adding more outlets, they too can still pull from the same source. Redundant power supplies (Answer D) should be used, but they too can pull from the same source. You need separate circuits. The redundant power supply, outlets or UPS (answers BC&D) can run from the other circuit.

I think A is correct on this one. The other options are not appropriate as a first step.

This one's wording will trip you up. "The administrator is concerned that having both servers in one rack will increase the chance of power issues due to the increased load." Servers usually have redundant power supplies. The load handling portion of properly configured rack is usually separate circuits feeding redundant UPS units each connected to a PDU.If a PDU cannot handle the amperage...

It has to Be A

Since there is no indication of the rack capacity prior to installing the new servers, I believe this question have two answers, B & C. If I am going to install an additional PDU, I should also ensure there is an additional UPS to connect it to which will ensure redundancy. Connecting a second PDU to a single UPS won't help with increase the capacity.

Power distribution units (PDUs) provide power outlets to racks in server rooms and data centers.To eliminate a single point of failure, redundant PDUs should be plugged into separate circuits.To extend this point, redundant server power supplies should each plug into separate PDUs.Data centers normally have alternate sources or providers of power, such as diesel generators, in the case of a power outage.Because many different types of items can draw power from PDUs, you should check your PDU’srating to ensure that your equipment doesn’t draw more power than the PDU’s load capacity can accommodate

I vote for A. It makes sense to use two PDUs to supply each server seperately with power, if the servers have two power supplies, cross connect them, one to each PDU.

Question states "increase the chance of power issues due to the increased load." " Which of the following should the administrator implement FIRST to address the issue?" - So the worry here is increased load and how to address this FIRST. An increased PDU for power distribution would be the first thing to do to increase the power load which should address the "issues due to increased load."

It is best practice to have your PDU load capacity 50% more than your planned server load capacity on a rack So make sure you know your planned server load capacity before server installation and increase your PDU load capacity to be atleast 50% more than the load capacity of your servers on your rack