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1Z0-590 · Question #85

In a paravirtualized environment, which answer best describes the drivers that are used in domO and the guest to communicate block I/O requests?

The correct answer is A. A blkback driver is used in dom0, and a blkfront driver is used in the guest. See the full explanation below for the reasoning.

Question

In a paravirtualized environment, which answer best describes the drivers that are used in domO and the guest to communicate block I/O requests?

Options

  • AA blkback driver is used in dom0, and a blkfront driver is used in the guest.
  • BA native device driver is used in dom0, and a blkback driver is used in the guest.
  • CA blkfront driver is used in dom0, and a native device driver is used in the guest.
  • DA blkfront driver is used in dom0, and a blkbck driver is used in the guest.
  • ENative drivers are used in both dom0 and the guest.

How the community answered

(34 responses)
  • A
    76% (26)
  • B
    6% (2)
  • C
    3% (1)
  • D
    3% (1)
  • E
    12% (4)

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