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Download Oracle Database 12c: Data Guard Administrator Exam Dumps
NEW QUESTION 48
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. The primary and standby databases are hosted on different operating systems.
- D. Flashback is not enabled for either the primary database, the standby database, or both in the Data Guard configuration.
- E. A far sync instance is the only Data Guard configuration member receiving redo in synchronous mode.
Answer: B,C
Explanation:
Explanation/Reference:
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
NEW QUESTION 49
Which two are true about database roles in an Oracle Data Guard Configuration?
- A. A Logical Standby Database can cascade redo to a terminal destination
- B. A Snapshot Standby Database can be a fast-start failover target
- C. a configuration consisting only of a primary and one or more physical standby databases can support a rolling release upgrade.
- D. A Logical Standby Database can be converted to a Snapshot Standby Database.
- E. A Physical Standby Database can be converted into a Logical Standby Database.
Answer: D,E
NEW QUESTION 50
Which three are prerequisites for enabling Fast-Start Failover?
- A. The Data Guard environment must be managed by the Data Guard Broker.
- B. Flashback Database must be enabled on both the primary database and the Fast-Start Failover target
standby database. - C. The configuration must be operating in either Maximum Performance or Maximum Protection mode
- D. Flashback Database must be enabled only on the Fast-Start Failover target standby database.
- E. The Fast-Start Failover target standby database must receive REDO directly from the primary
database - F. The configuration must be operating in either Maximum Performance or Maximum Availability mode
Answer: A,B,F
NEW QUESTION 51
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