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Download Oracle Database 12c: Data Guard Administrator Exam Dumps

NEW QUESTION 34
Which three statements are true about snapshot standby databases? (Choose three.)

  • A. Snapshot standby databases may be used for rolling release upgrades.
  • B. Flashback logs are used to convert a snapshot standby database back into a physical standby database.
  • C. A guaranteed restore point is created automatically when a physical standby database is converted into a snapshot standby database.
  • D. A snapshot standby database can have Real-Time Query enabled.
  • E. If datafiles grow while a database is a snapshot standby database, then they shrink when converted back to a physical standby database.

Answer: B,C,E

Explanation:
Explanation/Reference:
Explanation:
C: Flashback Database is similar to conventional point-in-time recovery in its effects. It enables you to return a database to its state at a time in the recent past. Flashback Database uses its own logging mechanism, creating flashback logs and storing them in the fast recovery area. You can only use Flashback Database if flashback logs are available. Flashback Database is used to convert a snapshot standby database back into a physical standby database.
E: When we convert the physical standby database to snapshot standby database a guaranteed restore point is created. This guaranteed restore point is used to flashback a snapshot standby database to its original state.
Incorrect Answers:
A: Oracle Database supports the installation of database software upgrades, and the application of patch sets, in a rolling fashion-with near zero database downtime-by using Data Guard SQL Apply and logical standby databases.
References:
https://docs.oracle.com/cd/E11882_01/server.112/e41134/manage_ps.htm#SBYDB4803
http://satya-dba.blogspot.se/2012/06/snapshot-standby-databases-oracle.html

 

NEW QUESTION 35
On your logical standby database, you specified these rules:
1z0-066-2baa5eaebc84a698c868e98d4da13f95.jpg
Which is true regarding the execution of the UNSKIP procedure?

  • A. it returns an error because the syntax to delete a SQL Apply filter must specify the same object names as specified when the filter was added
  • B. it succeeds only if all DML statements executed on the primary have been applied on the logical standby
  • C. It deletes both the SQL Apply filters.
  • D. it succeeds only if SQL apply is stopped before deleting the SQL Apply filter
  • E. it succeeds but the SQL Apply fitters are not deleted.

Answer: A

 

NEW QUESTION 36
You created the PRODSBY1 physical standby database for the PROD primary database using SQL and RMAN.
You are planning to create a Data Guard Broker configuration.
You execute the command:
DGMGRL> CREATE CONFIGURATION 'DGConfig' AS
> PRIMARY DATABASE IS 'PROD'
> CONNECT IDENTIFIER IS PROD;
Which three statements are true regarding the execution of the command? (Choose three.)

  • A. The command will execute successfully only if Oracle Net connectivity to the PROD and PRODSBY1 database instances are defined on the primary host.
  • B. The PRODSBY1 standby database is automatically added to the configuration if Oracle Net connectivity to the PRODSBY1 database instance is defined on the primary host.
  • C. The command will execute successfully only if Oracle Net connectivity to the PROD database instance is defined on the primary host.
  • D. The command will execute successfully only if the DG_BROKER_START initialization is set to TRUE for the PROD database instance.
  • E. The Data Guard Broker configuration files is automatically created in the destinations specified by the DG_BROKER_CONFIG_FILEn initialization parameters on the primary database.
  • F. The PRODSBY1 standby database is automatically added to the configuration if DG_BROKER_START IS TRUE for PRODSBY1.

Answer: B,E,F

 

NEW QUESTION 37
Attempting to start the observer raises an error:
DGMGRL> start observer:
DGM-16954: Unable to open and lock the Observer configuration file Failed.
Identify two possible ways to start the observer successfully.

  • A. Start the observer using a different observer configuration file.
  • B. Set the Observer Override property to TRUE before starting the observer.
  • C. Create a broker configuration and enable Fast-Start Failover before starting the observer.
  • D. Enable Fast-Start Failover before starting the observer.
  • E. Start the observer in a different working directory.

Answer: A,E

Explanation:
Explanation/Reference:
Error code: DGM-16954
Description: Unable to open and lock the Observer configuration file
Cause: The Observer configuration file cannot be opened or cannot be locked for exclusive access.
Action: Make sure the Observer has the correct operating system privileges to write the file and there is no other Observer that is using the same file. Try the command again.
References: https://www.oraexcel.com/oracle-12cR1-DGM-16954

 

NEW QUESTION 38
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