Why should disk queue length above zero be used to identify bottlenecks?

Question

Options

• AThis indicates excessive I/O and a disk bottleneck.
• BThis indicates excessive swap file utilization.
• CThis indicates insufficient RAM.
• DThis indicates a failed disk.

• A
  78% (25)
• B
  3% (1)
• C
  6% (2)
• D
  13% (4)

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