Crucial Exams

CompTIA Server+ SK0-005 Practice Question

You are cabling a new 2U application server that has two hot-swappable power supplies. The rack is in a Tier III colocation facility that offers two completely independent UPS systems:

  • UPS-A - powered by Utility Company #1
  • UPS-B - powered by Utility Company #2

Every rack has an A-side PDU wired only to UPS-A and a B-side PDU wired only to UPS-B. The customer's service-level agreement demands that the server remain online even if one utility provider suffers a total outage. Which cabling practice BEST satisfies this requirement?

  • Connect one power supply to a receptacle on the A-side PDU (UPS-A) and the other power supply to a receptacle on the B-side PDU (UPS-B).

  • Feed a rack-mount static transfer switch from the B-side PDU only and connect both server power supplies to the switch.

  • Plug both power supplies into two different outlets on the A-side PDU to balance the load across phases.

  • Attach the first power supply to the A-side PDU and leave the second power supply disconnected for future maintenance use.

CompTIA Server+ SK0-005
Server Hardware Installation and Management
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