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CCA-410 · Question #7

You have cluster running with the FIFO Scheduler enabled. You submit a large job A to the cluster, which you expect to run for one hour. Then, you submit job B to cluster, which you expect to run a…

The correct answer is B. The order of execution of tasks within a job may vary. C. Tasks are scheduled in the order of their jobs' submission. See the full explanation below for the reasoning.

Question

You have cluster running with the FIFO Scheduler enabled. You submit a large job A to the cluster, which you expect to run for one hour. Then, you submit job B to cluster, which you expect to run a couple of minutes only. You submit both jobs with the same priority. Which two best describes how the FIFO Scheduler arbitrates the cluster resources for a job and its tasks?

Options

  • AGiven Jobs A and B submitted in that order, all tasks from job A are guaranteed to finish before all
  • BThe order of execution of tasks within a job may vary.
  • CTasks are scheduled in the order of their jobs' submission.
  • DThe FIFO Scheduler will give, on average, equal share of the cluster resources over the job lifecycle.
  • EBecause there is more then a single job on the cluster, the FIFO Scheduler will enforce a limit on the
  • FThe FIFO Schedule will pass an exception back to the client when Job B is submitted, since all slots

How the community answered

(35 responses)
  • B
    80% (28)
  • D
    6% (2)
  • E
    3% (1)
  • F
    11% (4)

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