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Version: 8.0
Question: 21

A customer has these requirements for their potential Data Guard implementation:
1. Zero data loss must still be guaranteed through the loss of any one configuration component.
2 The primary database must be protected against a regional disaster
3. Performance overheads on the primary should be minimized as much as possible given these requirements.
4. Downtime on the primary database for any reason must be kept to a minimum.
Components referred to in the broker commands are:

Which Data Guard broker commands are needed to implement these requirements?

A. EDIT DATABASE prima SET PROPERY REDOROUTES=’ (LOCAL: physt1, FASTSYNC)’; EDIT DATABASE prima SET PROPERY REDOROUTES=’ (LOCAL: fs1 SYNC)’; EDIT FAR_SYNC fs1 SET PROPERTY REDORUOTES=’ (pnma: physt2 SYNC)’; EDIT CONFIGURATION SET PROTECTION MODE AS MAXAVAILABILITY
B. EDIT DATABASE prima SET PROPERY REDOROUTES=’ (LOCAL: fs1 ASYNC)’; EDIT FAR_SYNC fs1 SET PROPERTY REDORUOTES=’ (prima physt FASTSYNC)’; EDIT CONFIGURATION SET PROTECTION MODE AS MAXPROTECTION
C. EDIT DATABASE prima SET PROPERY REDOROUTES^’ (LOCAL: fs1 SYNC)’; EDIT FAR_SYNCfs1 SET PROPERTY REDORUOTES=’ (prima physt ASYNC)’; EDIT CONFIGURATION SET PROTECTION MODE AS MAXAVAILABILITY;
D. EDIT DATABASE prima SET PROPERY REDOROUTES=’ (LOCAL: physt1, FASTSYNC)’; EDIT DATABASE prima SET PROPERY REDOROUTES= (LOCAL: fs1. FASTSYNC)’; EDIT FAR_SYNC fs1 SET PROPERTY REDORUOTES=’ (prima: physt2 ASYNC)’; EDIT CONFIGURATION SET PROTECTION MODE AS MAXAVAILABILITY;

Answer: A

Question: 22

Examine the Data Guard configuration:
DGMGRL> show configuration
Configuration-Animals
Protection Mode: MaxAvailability
Databases:
Sheep- Primary database
Warning: ORA-16817: unsynchronized fast-start failover configuration
Dogs – (*) Physical standby database (disabled)
ORA-16661: the standby database needs to be reinstated
Fast-Start Failover: ENABLED Configuration Status: WARNING
And the fast-start failover configuration:
DGMGRL> show fast_start failover; Fast-Start Failover: ENABLED
Threshold: 30 seconds Target: dogs
Observer: 017.example.com Lag Limit: 30 seconds (not in use) Shutdown Primary: TRUE Auto-reinstate: TRUE Observer Reconnect 10 seconds Observer Override: FALSE
Configurable Failover Conditions Hearth Conditions: Corrupted Controlfile YES
Inaccessible Logfile NO
Stuck Archiver NO
Datafile Offline YES
Oracle error Conditions
ORA-01578: ORACLE data block corrupted (file # %s, block # %s)
And finally the reason for the fail over:
SQL> select last_failover_reason from v$fs_failover_stats;
LAST_FAILOVER_REASON
ORA-01578: ORACLE data block corrupted (file # %s, block # %s)
Identify the task, or sequence of tasks, to bring the configuration into the SUCCESS state.

A. Bring Dogs to the NOMOUNT state and let the broker reinstate Dogs automatically.
B. MOUNT DOGS and issue ”reinstate database dogs:” at the DGMGRL prompt while connected to Dogs.
C. MOUNT DOGS and issue “reinstate database dogs:” at the DGMGRL prompt while connected to Sheep
D. Open Dogs and let the broker reinstate Dogs automatically.

Answer: C

Question: 23

Examine the Data Guard configuration:
DGMGRL > show configuration;
Configuration-Animals
Protection Mode MaxPerformance
Databases
dogs-Primary database sheep-Snapshot standby database cats-Snapshot standby database
Fast-Start Failover: DISABLED
Configuration Status: SUCCESS
You receive an error while attempting to raise the protection mode to Maximum Availability:
DGMGDRL> edit configuration set protection mode as max availability;
Error ORA-16627 operation disallowed since no standby databases would remain to support protection mode Failed.
Identify two statements that you can execute, either one of which will enable successful raising of the protection mode to Maximum Availability.

A. DGMGRL> convert database sheep to physical standby;
B. DGMGRL> convert database cats to physical standby;
C. DGMGRL> edit database dogs set property LogXptMode= fastsync;
D. DGMGRL> edit database sheep set property LogXptMode= fastsync;
E. DGMGRL> edit database cats set property LogXptMode= sync;

Answer: B, E

Question: 24

You administer a Data Guard environment with a primary and two physical standby databases.
One of the physical standby databases is used for reporting and is on the same host as the primary database.
The other physical standby database is remote, used for disaster recovery and REDO is routed to it via a far sync instance.
Backups are offloaded to the remote physical standby.
Which three are true concerning the management of archive logs in this Data Guard configuration?

A. Archive logs on the primary database may be deleted once they are applied on all standby databases.
B. Archive logs on the primary database may be deleted once they are shipped on all standby databases.
C. The deletion policy for archive logs on the remote physical standby should be set so that archived logs are deleted once they backed up at least once on the remote physical standby database.
D. The deletion policy for archive logs on the remote physical standby should be set so that archived logs are deleted once they are applied on all standby databases.
E. Archive logs on the primary database may be deleted once they are archived locally to disk.

Answer: A, D, E

Question: 25

Which two are prerequisites for configuring flashback database for Oracle 12c databases, in a Data Guard environment?

A. a flash recovery area must be configured
B. The database must be in MOUNT state.
C. The database must be in ARCHIVELOG mode.
D. A far sync instance must be configured to flash back a standby when the primary has been flashed back.
E. The Data Guard Broker must be used.

Answer: A, C

Question: 26

You are required to change the Data Guard Configuration protection mode from MAXPERFORMANCE to MAXAVAJLABILITY using Enterprise Manager Cloud Control
Which two are true about this change?

A. If the primary database cannot write its redo to at least one synchronized standby database, then the protection level remains unchanged.
B. The primary database instance will remain up and running, if it cannot write redo to at least one synchronized standby database.
C. Transactions will not commit until all redo data needed to recover those transactions are written to the online redo log, and to the standby redo log on at least one synchronizes standby database.
D. Fast start failover can be enabled when making the chance.
E. Real time apply will be automatically turned on.

Answer: BC

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