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Free Oracle 1Z0-060 Exam Braindumps (page: 3)

Page 3 of 55
PDF with 216 Questions

An Automatic Database Diagnostic Monitor (ADDM) finding in your production database reports that the shared pool is inadequately sized. You diagnose that this is due to the different kinds of workloads and this occurs only during peak hours. The following are the parameter settings for the database instance:

You want to balance the memory between the System Global Area (SGA) components depending on the workload.

Which option would solve this problem?

  1. setting the PGA_AGGREGATE_TARGET parameter to 200M and the SGA_MAX_SIZE parameter to 400M
  2. setting the MEMORY_TARGET and SGA_MAX_SIZE parameters to 400M
  3. setting the SGA_TARGET parameter to 300M
  4. setting the SGA_MAX_SIZE parameter to 400M

Answer(s): C



Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database.

You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted.
What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB?

  1. Place CDB1 in the mount stage and then take the USERDATA tablespace offline in ACCOUNTS_PDB.
  2. Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command.
  3. Issue the ALTER PLUGGABLE DATABASE accounts_pdb OPEN RESTRICTED command.
  4. Take the USERDATA tablespace offline in ACCOUNTS_PDB.

Answer(s): D

Explanation:

* You can take an online tablespace offline so that it is temporarily unavailable for general use. The rest of the database remains open and available for users to access data. Conversely, you can bring an offline tablespace online to make the schema objects within the tablespace available to database users. The database must be open to alter the availability of a tablespace.



Which Oracle Database component is audited by default if the unified Auditing option is enabled?

  1. Oracle Data Pump
  2. Oracle Recovery Manager (RMAN)
  3. Oracle Label Security
  4. Oracle Database Vault
  5. Oracle Real Application Security

Answer(s): B



Your multitenant container (CDB) containing three pluggable databases (PDBs) is running in ARCHIVELOG mode. You find that the SYSAUX tablespace is corrupted in the root container. The steps to recover the tablespace are as follows:

1. Mount the CDB.
2. Close all the PDBs.
3. Open the database.
4. Apply the archive redo logs.
5. Restore the data file.
6. Take the SYSAUX tablespace offline.
7. Place the SYSAUX tablespace online.
8. Open all the PDBs with RESETLOGS.
9. Open the database with RESETLOGS.
10. Execute the command SHUTDOWN ABORT.

Which option identifies the correct sequence to recover the SYSAUX tablespace?

  1. 6, 5, 4, 7
  2. 10, 1, 2, 5, 8
  3. 10, 1, 2, 5, 4, 9, 8
  4. 10, 1, 5, 8, 10

Answer(s): A

Explanation:

RMAN> ALTER TABLESPACE sysaux OFFLINE IMMEDIATE;
RMAN> RESTORE TABLESPACE sysaux;
RMAN> RECOVER TABLESPACE sysaux;
RMAN> ALTER TABLESPACE sysaux ONLINE;

* Example:
While evaluating the 12c beta3 I was not able to do the recover while testing “all pdb files lost”. Cannot close the pdb as the system datafile was missing…
So only option to recover was:
Shutdown cdb (10)
startup mount; (1)
restore pluggable database
recover pluggable database
alter database open;
alter pluggable database name open;
Oracle support says: You should be able to close the pdb and restore/recover the system tablespace of PDB.

* Inconsistent backups are usually created by taking online database backups. You can also make an inconsistent backup by backing up data files while a database is closed, either:

/ Immediately after the crash of an Oracle instance (or, in an Oracle RAC configuration, all instances)
/ After shutting down the database using SHUTDOWN ABORT

Inconsistent backups are only useful if the database is in ARCHIVELOG mode and all archived redo logs created since the backup are available.

* Open the database with the RESETLOGS option after finishing recovery:
SQL> ALTER DATABASE OPEN RESETLOGS;



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