Typical data centers function to what percent of their capacity?

Question

Options

• A10%
• B33%
• C66%
• D75%

• A
  7% (3)
• B
  74% (32)
• C
  2% (1)
• D
  16% (7)

Explanation

Data centers typically operate at around 33% of their capacity (option B) - a well-documented inefficiency stemming from organizations over-provisioning servers to handle peak loads, leaving the majority of computing resources idle most of the time. This "one-third rule" reflects real-world studies by organizations like the Lawrence Berkeley National Laboratory and the EPA, which consistently found servers running at low utilization.

Why the distractors are wrong:

• A (10%) is too low - even the most wasteful environments rarely drop this far; this figure is sometimes cited for idle servers, not overall data center utilization.
• C (66%) and D (75%) represent target or optimized utilization levels that organizations aim for through virtualization and consolidation - not the typical baseline reality.

Memory tip: Think "one-third full, two-thirds wasted" - data centers pay for three servers but only productively use one. This inefficiency is precisely why cloud computing and server virtualization became so valuable.

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