A. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to PDB1.

B. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to PDB1.

C. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to CDB$ROOT.

D. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to CDB$ROOT.

E. This cannot be done due to the lack of a clean restore point.

A. archived redo log files that have multiple copies in a different archive location

B. flashback logs

C. RMAN backups that are obsolete

D. user-managed backups of data files and control files

A. V$SESSION_EVENT

B. V$SESSTAT

C. V$SESSION_WAIT

D. V$SESSION_WAIT_CLASS

E. V$SESSION

A. Recovery begins from the beginning of the CURRENT redo log group.

B. Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.

C. Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.

D. Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.

E. Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).

F. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.

A. Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using asynchronous I/O/

B. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.

C. Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using synchronous I/O.

D. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.

E. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.

F. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then read I/O is a likely bottleneck.

G. If an RMAN BACKUP VALIDATE command takes noticeably lessthan an actual backup, then write I/O is a likely bottleneck.