Online Access Free Oracle.1Z0-083.v2022-07-25.q97 Practice Test (Page 14)

1Z0-083 Exam Question 61

Your production database is running in archivelog mode. You use RMAN with a recovery catalog to back up your database to media and the database is uniquely identified in the recovery catalog. You want to create a test database from the production database and allow the production database to remain open during the duplicate process. You restore the database backups to a new host with the same directory structure as the production database and want to use the recovery catalog for future backups after the database is successfully restored to the new host. How would you achieve this?

A.by using the RMAN duplicate command with dbid and set new name for tablespace to recover the database to the new host

B.by creating a new database in the new host, and then using the RMAN recover command

C.by using the RMAN duplicate command with nofilenamecheck to recover the database to the new host

D.by using the RMAN switch command to set the new location for the data files

1Z0-083 Exam Question 62

Choose the best answer. Examine this configuration: 1. CDB1 is an Oracle container database from an older release. 2. PDB1, PDB2, PDB3, and PDB4 are pluggable databases in CDB1. A priority list UpgrdList has these entries: 1, pdb2 2, pdb1, pdb3 You execute this command: $ /u01/app/oracle/product/18.1.0/ db_1/rdbms/admin/dbupgrade -L UpgrdList In which order will the upgrade occur?

A.CDB$ROOT, PDB$SEED, PDB2, PDB1, PDB3, and PDB4

B.CDB$ROOT, PDB2, PDB1, and PDB3

C.CDB$ROOT, PDB$SEED, PDB1, PDB3, PDB2, and PDB4

D.CDB$ROOT, PDB$SEED, PDB2, PDB1, and PDB3

E.CDB$ROOT, PDB1, PDB2, PDB3, and PDB4

1Z0-083 Exam Question 63

While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup istaking too long and suspect a performance bottleneck. Which three are true about diagnosing and tuning these problems? (Choose three.)

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

B.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.

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

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

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

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

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

1Z0-083 Exam Question 64

Which four are true about RMAN backup sets? (Choose four.)

A.A backup set must be written to media.

B.A backup set must be written to disk.

C.A data file can be split into multiple sections stored in different backup pieces in the same backup set.

D.Blocks from multiple data files can be contained in one backup piece,

E.Blocks from multiple data files can be contained in one backup set,.

F.A data file can be split into multiple sections stored in different backup sets.

G.A backup piece can belong to only one backup set.

H.A backup set can contain only one backup piece.

1Z0-083 Exam Question 65

choose two Which two statements are true about encrypted backups performed by using RMAN?

A.Image copy backups can be created by using password encryption.

B.Encrypted backups can only be written to disk.

C.Transparent encryption of backups uses an encryption wallet.

D.A password encryption of backups uses the password while creating and restoring backups.

E.A database uses the same encryption key for every encrypted backup.

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1Z0-083 Exam Question 61

1Z0-083 Exam Question 62

1Z0-083 Exam Question 63

1Z0-083 Exam Question 64

1Z0-083 Exam Question 65

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