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AZ-802 · Monitoring and troubleshooting · Monitoring and troubleshooting | Troubleshoot Windows Server issues

Practice question 425 of 506 · medium

After adding CPUs, a slow single-threaded application is unchanged and one core remains saturated. What does this indicate?

Choose the single best answer.

  1. A.Total CPU average guarantees the application is not CPU-bound
  2. B.The serial bottleneck may need application or per-core performance work
  3. C.Adding more cores must always accelerate the same single thread
  4. D.Only memory allocation can limit a process when total CPU is low
Show the answer and explanation

✓ Correct answer

  • The serial bottleneck may need application or per-core performance work

Serial work can remain limited by one core even when total CPU is low. Aggregate averages hide that limitation, more cores do not automatically parallelize the thread, and memory is not the only possible bottleneck.

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