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SK0-004 · Question #210

The logs on a server in a datacenter indicate that the server unexpectedly shut down minutes after the night cleaning crew started their shift. Which of the following is the MOST likely reason for…

The correct answer is B. A power surge occurred. The precise timing overlap between the cleaning crew starting their shift and the unexpected server shutdown points to a power surge from the crew's electrical equipment as the most likely cause.

Troubleshooting

Question

The logs on a server in a datacenter indicate that the server unexpectedly shut down minutes after the night cleaning crew started their shift. Which of the following is the MOST likely reason for the shut down?

Options

  • AA hard disk on the server failed.
  • BA power surge occurred.
  • CThe CPU on the server overheated.
  • DA memory module on the server failed.

How the community answered

(32 responses)
  • A
    16% (5)
  • B
    75% (24)
  • C
    3% (1)
  • D
    6% (2)

Why each option

The precise timing overlap between the cleaning crew starting their shift and the unexpected server shutdown points to a power surge from the crew's electrical equipment as the most likely cause.

AA hard disk on the server failed.

A hard disk failure causes I/O errors or degraded array status but does not typically trigger an immediate, clean shutdown of the entire server.

BA power surge occurred.Correct

Cleaning crews use high-draw appliances such as vacuums and floor scrubbers that can cause power surges or momentary outages on circuits shared with server equipment. A power surge can force an unplanned server shutdown instantly, and the strong temporal correlation with the crew starting work makes an electrical disturbance the most logical explanation.

CThe CPU on the server overheated.

CPU overheating is a gradual process driven by sustained workload, not an event that suddenly occurs the moment external personnel begin their shift.

DA memory module on the server failed.

Memory module failures produce system errors or crashes over time and are not correlated with environmental events such as a cleaning crew starting work.

Concept tested: Power surge impact on server availability in datacenters

Topics

#power surge#UPS#server shutdown#datacenter

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