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Share some Oracle Database 1Z0-066 exam questions and answers below.
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

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? 
A.Create a database service on each standby database that is started automatically by a trigger, when the database rote is PRIMARY, modify the connection description used by client applications to include all the standby hosts and connect to the database instance using that service name. 
B.Create a database service on the primary database that is started automatically by a trigger, when the database role is PRIMARY, modify the connection descriptors used by client applications to include all the standby hosts and connect to the database instance using that service name. 
C.Set the INSTANCE_NAME parameter identically on all databases; modify the connection descriptor on client applications to include all the standby hosts and connect to the database instance using that service name. 
D.Set the DB_NAME and DB_UNIQUE_NAME identical on all databases, modify the connection descriptors on client applications to include all the standby hosts and connect to the database using that service name. 
Answer: A

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

Which four database parameters might be affected by or influence the creation of standby databases? 
A.DB_NAME 
B.ARCHIVE_LAG_TARGET 
C.COMPATIBLE 
D.DB_FILE_NAME_CONVERT 
E.DB_UNIQUE_NAME 
F.FAL_SERVER 
G.STANDBY_ARCH1VE_DEST 
Answer: A, D, E, F

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