You detected an unrecoverable archive gap in your data guard environment. So, you need to roll standby.
forward in time without applying a large number of archive log files using this command:
RMAN> RECOVER STANDBY DATABASE FROM SERVICE-<primary database name>;
When running this command, which of the following steps can be performed automatically?
1. Remember all data file names on the standby.
2. Restart standby in nomount.
3. Restore controlfile from primary.
4. Mount standby database.
5. Rename data files from stored standby names.
6. Restore new data files to new names.
7. Recover standby.

• A. 2,3,5,6,7
• B. 1,2,3,4,5,6,7
• C. 1,3,5,6,7
• D. 1, 2,3,4,6,7
• E. 2,3,6,7

說明：（僅 Fast2test 成員可見）

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

Examine the Data Guard configuration:
DGMGRL> show configuration;
Configuration - Animals
Protection Mode: MaxAvailability
Databases:
dogs - Primary database
sheep - Snapshot standby database
cats - Physical standby database
Fast-Start Failover: DISABLED
Configuration Status:
SUCCESS
You receive an error while attempting to raise the protection mode to Maximum Protection:
DGMGRL> edit configuration set protection mode as maxprotection;
Error: ORA-16627: operation disallowed since no standby databases would remain to support protection mode Failed.
Which is the minimum statement, or sequence of statements you must execute to enable successful raising of the protection mode to Maximum Protection?

• A. DGMGRL> edit database sheep set property LogXptMode=sync;
• B. DGMGRL> edit database dogs set property LogxptMode=sync;
  DGMGRL> edit database sheep set property LogxptMode=sync;
• C. DGMGRL> edit database dogs set property LogxptMode=sync;
• D. DGMGRL> edit database dogs set property LogXptMode=sync;
  DGMGRL> edit database cats set property LogXptMode=sync;
• E. DGMGRL> edit database cats set property LogXptMode=sync;
• F. DGMGRL> edit database dogs set property LogXptMode=sync;
  DGMGRL> edit database sheep set property LogxptMode=sync;
  DGMGRL> edit database cats set property LogXptMode=sync;

Which three Data Guard monitoring activities may be performed using Enterprise Manager Cloud Control?

• A. You can set a warning threshold on the redo generation rate metric for a physical standby database.
• B. You can monitor the redo apply rate on a logical standby database.
• C. You can check if redo apply needs to be tuned.
• D. You can check the potential data loss in the event of a disaster.
• E. You can set a critical threshold on the redo generation rate metric for a primary database.
• F. You can monitor the redo apply rate on a snapshot standby database.

說明：（僅 Fast2test 成員可見）

Which four factors can influence the rate of SQL apply on a logical standby database?

• A. the number of full table scans performed by SQL apply
• B. the size of the undo tablespace on the logical standby database
• C. the number of PREPAER processes
• D. the number of applier processes
• E. the number of coordinator processes on the standby database instance
• F. the size of the shared pool

說明：（僅 Fast2test 成員可見）