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Oracle Database 12c: Data Guard Administration
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Examine the Data Guard configuration:DGMGRL> show configurationConfiguration-AnimalsProtection Mode: MaxAvailabilityDatabases:Sheep- Primary databaseWarning: ORA-16817: unsynchronized fast-start failover configurationDogs - (*) Physical standby database (disabled)ORA-16661: the standby database needs to be reinstatedFast-Start Failover: ENABLED Configuration Status: WARNINGAnd the fast-start failover configuration:DGMGRL> show fast_start failover; Fast-Start Failover: ENABLEDThreshold: 30 seconds Target: dogsObserver: 017.example.com Lag Limit: 30 seconds (not in use) Shutdown Primary: TRUEAuto-reinstate: TRUE Observer Reconnect 10 seconds Observer Override: FALSEConfigurable Failover Conditions Hearth Conditions: Corrupted Controlfile YESInaccessible Logfile NOStuck Archiver NODatafile Offline YESOracle error ConditionsORA-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_REASONORA-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 query on the view DBA_LOGSTBY_UNSUPPORTED on your primary database returns no rows As a result of this, you decide that an upgrade may use logical standby databases. Which two are true about upgrading Data Guard environments consisting of one logical standby database running on a separate host from the primary?
A customer asks you to propose the most appropriate solution for this set of requirements:1. We need a disaster recovery solution that enables us to fail over from our productiondatabase with zero data loss.2. We want to generate reports from the proposed standby database at the same time thatit is used for other purposes.3. Developers may need to test occasionally on a copy of the live database.You have to already confirmed that there are no unsupported data types on the primarydatabase Which two solutions would you recommend?
Which two are true about database roles in an Oracle Data Guard Configuration?
Which four are true about DGMGRL show command?
Which three are true regarding the Enterprise Manager Cloud Control Data Guard configuration verification wizard?
You administer a Data Guard environment with a primary and two physical standbydatabases.One of the physical standby databases is used for reporting and is on the same host as theprimary database.The other physical standby database is remote, used for disaster recovery and REDO isrouted 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 Guardconfiguration?
Your Data Guard environment consists of these components and settings:1. A primary database2. Two remote physical standby databases3. The redo transport mode is set to SYNC.4. Real-time query is enabled for both standby databases.5. The DB_BLOCK_CHECKING parameter is set to TRUE on both standby databases.You notice an increase in redo apply lag time on both standby databases.Which two would you recommend to reduce the redo apply lag on the standby databases?
Your Data Guard environment has two remote physical standby databases Client applications use the local naming method to connect to the primary database instance. You want applications to automatically connect to the new primary database instance in case of a switchover or a failover Which will fulfill this requirement?
Which three are required in order to use Real-Time Query without lagging behind the primary?