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Oracle 1Z0-025 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Flashback Technology (Oracle 10g) | - Flashback Table - Flashback Query |
| Backup Concepts and Strategies | - Backup strategies and scheduling considerations - Backup types (cold, hot, full, incremental) |
| Database Recovery Techniques | - Recovery from user errors - Media recovery and instance recovery - Complete and incomplete recovery |
| Recovery Manager (RMAN) | - Recovery catalog usage - RMAN backup commands and scripts - RMAN architecture and configuration |
| Archived Redo Log Management | - Archived log maintenance and recovery usage - ARCHIVELOG mode configuration |
Oracle Backup and Recovery Sample Questions:
Which option is used in the parameter file to detect corruptions in an Oracle data block?
- A. DB_BLOCK_CHECKING
- B. DBVERIFY
- C. VALIDITY_STRUCTURE
- D. DBMS_REPAIR
Correct Answer: A 🗳️
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Which statement regarding the allocation of processes to recovery manager is true?
- A. Enabling I/O slaves can be controlled by setting USE_IO/SLAVES appropriately.
- B. When enabling I/O slaves, ensure that the shared pool is sized appropriately.
- C. I/O slaves can only be used if the operating system supports asynchronous I/O.
- D. Setting BACKUP_TAPE_IO_SLAVES=TRUE will enable a dedicated slave to write to a tape device.
Correct Answer: C 🗳️
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What is recommended initial size for a tablespace containing an RMAN recovery catalog?
- A. 10M
- B. 20M
- C. 100M
- D. 10% of size of the target database.
Correct Answer: A 🗳️
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Given the RMAN script:
run(
allocation channel t2 type 'SET_TAPE'
backup filesperset 3
format '/disk1/backup/ar_%t_%s_%p'
(Archivelog from logseq*1056 until logseq*1056
thread*1 delete input):
)
What does this script do?
- A. Backup three archived logs into one backup set.
- B. Backup one archived log into one backup piece.
- C. Backup three archived logs into three backup pieces.
- D. Backup one archived log into three backup set.
- E. Backup one data file into one backup set.
- F. Backup three data files into one backup set.
Correct Answer: C 🗳️
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You should issue a backup of the control file after issuing which command?
- A. CREATE TABLE
- B. CREATE ROLLBACK SEGMENT
- C. ALTER TABLE
- D. CREATE TABLESPACE
Correct Answer: D 🗳️
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