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Oracle AI Database Administration Professional Sample Questions:

1. What is the difference between opatch and opatchauto
Response:

A) opatchauto applies interim patches, and opatch applies bundle patches
B) opatch is GUI-based, while opatchauto is command-line only
C) opatch can patch Grid Infrastructure, but opatchauto cannot
D) opatchauto handles both GI and database patching, while opatch is used for a single Oracle Home

2. What is the effect of issuing ALTER PLUGGABLE DATABASE ALL OPEN READ ONLY;?

A) Only PDB$SEED opens, as it is the default template PDB
B) The command fails because PDB$SEED cannot change open mode
C) All user-created PDBs except PDB$SEED open in read-only mode
D) All PDBs in the CDB are opened in READ WRITE mode

3. What advantage does Flashback Database provide over traditional point-in-time recovery?

A) It creates guaranteed restore points automatically for every transaction
B) It allows rewinding the entire database quickly using flashback logs instead of restoring backups
C) It eliminates the need for any redo logs
D) It replaces undo segments with archived redo

4. Which two actions are performed by the Data Recovery Advisor (DRA)?
(Choose two)

A) Automatically applying OS-level patches
B) Suggesting and generating repair scripts
C) Dropping damaged user schemas automatically
D) Identifying physical datafile corruption

5. Which two prerequisites are required for RMAN active database duplication?
(Choose two)

A) Auxiliary instance must be mounted with the control file in place
B) Source database must be in ARCHIVELOG mode
C) Target and auxiliary instances must be connected to a listener
D) Existing backup sets must be available on disk

Solutions: