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Exam 1z0-066 topic 1 question 32 discussion

Actual exam question from Oracle's 1z0-066
Question #: 32
Topic #: 1
[All 1z0-066 Questions]

In which two cases is it possible to change the protection mode to maximum protection using Enterprise Manager Cloud Control?

  • A. A snapshot standby database is the only standby database in the Data Guard configuration.
  • B. A logical standby database is the only standby database in the data guard configuration.
  • C. A far sync instance is the only Data Guard configuration member receiving redo in synchronous mode.
  • D. Flashback is not enabled for either the primary database, the standby database, or both in the Data Guard configuration.
  • E. The primary and standby databases are hosted on different operating systems.
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Suggested Answer: BE 🗳️
Maximum protection mode requires the SYNC redo transport mode to be set on at least one standby database.
Note:
The Maximum protection mode ensures that no data loss will occur if the primary database fails. To provide this level of protection, the redo data needed to recover a transaction must be written to both the online redo log and to the standby redo log on at least one synchronized standby database before the transaction commits. To ensure that data loss cannot occur, the primary database will shut down, rather than continue processing transactions, if it cannot write its redo stream to at least one synchronized standby database.
References:
http://www.oracle.com/technetwork/oem/framework-infra/wp-em12c-building-ha-level3-1631423.pdf

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Rockfics
1 year, 3 months ago
Selected Answer: DE
Answer D an E A and B are not options for Maximum Protection C. A far sync instance like the "only member" surviving is not option por Maximum Protection D. Flashback is not required por Maximum Protection E. Dataguard works in different operating systems https://docs.oracle.com/en/database/oracle/oracle-database/12.2/sbydb/getting-started-with-oracle-data-guard.html#GUID-31B64063-7051-48E4-9BE9-E73266317C9F
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