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Certifications: Oracle Database 12c
Exam Name: Oracle Database 12c: RAC and Grid Infrastructure Administration
Exam Code: 1Z0-068
Total Questions: 157 Q&As
A complete database backup to media is taken for your database every day. Which three actions would you take to improve backup performance?
A. Set the backup_tape_io_slaves parameter to true.
B. Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.
C. Configure large pool if not already done.
D. Remove the rate parameter, if specified, in the allocate channel command.
E. Always use RMAN compression for tape backups rather than the compression provided by media manager.
F. Always use synchronous I/O for the database.
Correct Answer: BDF
A database is running in archivelog mode. You want to back up a 10 TB data file belonging to the users tablespace. The backup of the data file is too slow.
What type of backup do you recommend to improve the performance of the backup?
A. image copy backup by using RMAN
B. multisection image copy backup by using RMAN
C. multisection parallel backup by using RMAN
D. cold backup after taking the tablespace offline
E. cold backup after placing the tablespace in backup mode
Correct Answer: A
Which two resources might be prioritized between competing pluggable databases (PDBs) when creating a multitenant container database (COB) plan using Oracle Database Resource Manager? 1Z0-068 dumps
A. maximum undo per consumer group
B. maximum idle time for a session in a PDB
C. parallel server limit
E. maximum number of sessions for a PDB
Correct Answer: CD
Which two statements are true about scheduling operations in a pluggable database (PDB)?
A. Scheduler jobs for a PDB can be defined only at the container database (CDB) level.
B. A job defined in a PDB runs only if that PDB is open.
C. Scheduler attribute setting is performed only at the CDB level.
D. Scheduler objects created by users can be exported or imported using Data Pump.
E. Scheduler jobs for a PDB can be created only by common users.
Correct Answer: CD
Identify three scenarios in which RMAN will use backup sets to perform active database duplication.
A. when the duplicate … from active database command contains the section size clause
B. when you perform active database duplication on a database with flashback disabled
C. when you specify set encryption before the duplicate … from active database command
D. when the number of auxiliary channels allocated is equal to or greater than the number of target channels
E. when you perform active database duplication on a database that has read-onlytablespaces
Correct Answer: ACD
Which three statements are true about a job chain?
A. It can contain a nested chain of jobs.
B. It can be used to implement dependency-based scheduling.
C. It cannot invoke the same program or nested chain in multiple steps in the chain.
D. It cannot have more than one dependency.
E. It can be executed using event-based or time-based schedules.
Correct Answer: ABE
Examine the RMAN command:
RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON;
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
Which prerequisite must be met before accomplishing the backup? 1Z0-068 dumps
A. The password for the encryption must be set up.
B. Oracle wallet for the encryption must be set up.
C. All the tablespaces in the database must be encrypted.
D. Oracle Database Vault must be enabled.
Correct Answer: C
You notice performance degradation in your production Oracle 12c database. You want to know what caused this performance difference.
Which method or feature should you use?
A. Database Replay
B. Automatic Database Diagnostic Monitor (ADDM) Compare Period report
C. Active Session History (ASH) report
D. SQL Performance Analyzer
Correct Answer: B
You wish to create jobs to satisfy these requirements:
1. Automatically bulk load data from a flat file.
2.Rebuild indexes on the SALES table after completion of the bulk load.
How would you create these jobs?
A. Create both jobs by using Scheduler raised events.
B. Create both jobs using application raised events.
C. Create one job to rebuild indexes using application raised events and another job to perform bulk load using Scheduler raised events.
D. Create one job to rebuild indexes using Scheduler raised events and another job to perform bulk load by using events raised by the application.
Correct Answer: D
You want to consolidate backup information and centrally manage backup and recovery scripts for multiple databases running in your organization. 1Z0-068 dumps
Which two backup solutions can be used?
A. RMAN recovery catalog
B. RMAN Media Management Library
C. Enterprise Manager Cloud Control
D. Enterprise Manager Database Express
E. Oracle Secure Backup
Correct Answer: A
Which two are prerequisites for setting up Flashback Data Archive?
A. Fast Recovery Area should be defined.
B. Undo retention guarantee should be enabled.
C. Supplemental logging should be enabled.
D. Automatic Undo Management should be enabled.
E. All users using Flashback Data Archive should have unlimited quota on the Flashback Data Archive tablespace.
F. The tablespace in which the Flashback Data Archive is created should have Automatic Segment Space Management (ASSM) enabled.
Correct Answer: DF
For which three pieces of information can you use the RMAN list command?
A. stored scripts in the recovery catalog
B. available archived redo log files
C. backup sets and image copies that are obsolete
D. backups of tablespaces
E. backups that are marked obsolete according to the current retention policy
Correct Answer: ACD
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