Half of the room's CRACs are adding humidity, while the other half of the CRACs are working to reduce the humidity in the room.What is this phenomenon called?

Question

Options

• ARightsizing
• BRedundancy
• CDemand fighting
• DResource allocation

• A
  3% (1)
• B
  11% (4)
• C
  83% (30)
• D
  3% (1)

Explanation

"Demand fighting" (C) describes a situation where HVAC or cooling units work at cross-purposes, canceling out each other's effects and wasting energy rather than contributing to a stable environment. In a data center context, when half the CRACs add humidity and the other half remove it, neither goal is achieved efficiently, and the room's conditions remain unstable.

Rightsizing (A) refers to matching equipment capacity to actual load requirements - a sizing decision, not a conflict between units. Redundancy (B) means having backup systems available to take over if a primary system fails, which is about resilience, not operational conflict. Resource allocation (D) is a broad term for distributing resources across systems or workloads, with no inherent implication of units working against each other.

Memory tip: Picture two people on a tug-of-war rope - both expending energy, neither making progress. That wasted effort between opposing units is demand fighting.

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