Which two should be used as a basis for determining the UPS redundancy configuration? (Choose two.)

Question

Options

• AVoltage level
• BCost of downtime
• CAvailability requirements
• DSize of the electrical load

• A
  5% (1)
• B
  70% (14)
• C
  20% (4)
• D
  5% (1)

Explanation

Determining UPS redundancy requires knowing both how much downtime costs the organization (B) and what level of continuous availability the system must achieve (C) - together, these define the business justification and the technical target for redundancy. Cost of downtime drives the financial case: if an outage costs millions per hour, a higher-redundancy configuration is warranted; if downtime is cheap, a simpler setup may suffice. Availability requirements set the engineering target, such as 99.999% uptime, which directly maps to how many redundant UPS units and configurations (N+1, 2N, etc.) are needed. Voltage level (A) influences UPS selection and electrical design but does not determine redundancy architecture. Size of the electrical load (D) determines UPS capacity and quantity needed to carry the load, not the redundancy tier.

Memory tip: Think "why do we need it and how good does it need to be" - cost of downtime answers why redundancy is worth the investment, and availability requirements answer the performance standard it must meet.

No community discussion yet for this question.