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Exam 1z0-078 topic 1 question 15 discussion

Actual exam question from Oracle's 1z0-078
Question #: 15
Topic #: 1
[All 1z0-078 Questions]

Disk group DGRP1 has these attributes:
1. Normal redundancy
2. Two failure groups FG1 and FG2 with two disks each
3. Compatibility settings set to 19.0
The FG1 failure group goes offline due to hardware failure.
Which two statements are true? (Choose two.)

  • A. New allocation units are mirrored in the FG2 failure group until FG1 is restored and the disk group resynchronized.
  • B. The redundancy is lowered until the FG1 failgroup is restored and the disk group resynchronized.
  • C. New allocation units are not mirrored but changes to allocation units are tracked in the FG2 failure group.
  • D. Transactions on database objects stored in tablespaces in the DGRP1 disk group fail.
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Suggested Answer: AC 🗳️

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lcoleandro
2 months ago
Selected Answer: AD
A is true D could be true if the failure of FG1 results in data unavailability or loss that impacts ongoing transactions. However, Oracle ASM is designed to maintain data availability and integrity even in the event of failures. Transactions may experience temporary interruptions or delays, but they typically do not fail outright unless the failure severely impacts data access. B is false because In Oracle ASM, the redundancy level of a disk group is not lowered during a failure. Instead, Oracle ASM dynamically adjusts data allocation and mirroring to maintain redundancy even in the presence of failures. C is false because . Oracle ASM continues to mirror new allocation units across the remaining operational failure group (FG2) to maintain redundancy and data availability. Tracking changes to allocation units is part of ASM's internal management but does not affect the mirroring of new data.
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