Oracle Certification 1Z0-066 certification test guides Passtcert

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

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

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

Which two statements are true for Data Guard environments with multi-tenant databases? 
A.DB_UNIQUE_NAME must be specified differently for each pluggable database within a multi-tenant standby database. 
B.Each pluggable database within a multi-tenant physical standby database has a minimum of one associated Oracle Net service name. 
C.Each pluggable database within a multi-tenant physical standby has one MRP background process running during redo apply. 
D.A pluggable database within a multi-tenant standby database can have a different open mode than the container database 
E.A pluggable database within a multi-tenant standby database can have a different database role than the container database. 
Answer: A, D

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Related article: http://huaweitests.blogspot.com/2017/08/oracle-database-12c-data-guard.html