1z1-497 무료 덤프문제 온라인 액세스

Which two statements about switchover and failover are true?

• A.Neither a switchover nor a failover is possible to a far sync instance.
• B.A snapshot standby can be the target of a switchover or fast-start failover operation.
• C.You can activate a standby database to test whether it is being updated correctly.
• D.For fast-start failover, you must preselect the target standby database that will be used.

You want to drop a pluggable database from a multitenant container database that is used for development, which two statements are true?

• A.When you drop the PDB, the data files and redo log files are automatically removed from the storage file system.
• B.You can drop the PDB only if it is closed.
• C.You can drop the seed PDB, but you cannot create any other PDB within the CD
• D.You can drop the PDB and keep the data files to be reused by another PDB.

Which two items are key for maintaining data consistency in Oracle Database 12c?

• A.serializability
• B.undo data
• C.lock mechanism
• D.isolation level

Which two statements about Global Data Services (GDS) are correct?

• A.GDS works seamlessly with any combination of Oracle RAC databases, single-instance databases, Oracle Data Guard, Oracle Active Data Guard, and Oracle Golden Gate.
• B.GDS helps to perform database failovers, and does not require Data Guard Broker.
• C.The GDSMGRL utility is a command-line interface for configuring and managing the Global Data Services framework.
• D.GDS helps in performing data replication.
• E.GDS allows scaling replication-aware application workloads beyond the cluster (that is, across replicated clusters).

Consider 10 scenarios that result in database downtime. Which five of them are considered as planned downtime?

• A.migrating to cluster architecture
• B.addition or removal of nodes, memory, or disks
• C.adding table partitioning
• D.database or application deadlocks
• E.file deletion
• F.runaway processes that consume system resources
• G.table definition changes
• H.dropped database object
• I.changing configuration parameters, upgrading, or patching Oracle software
• J.operating system or storage device / driver failure