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By oracle
Aug, 2025

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Question 1

Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.)

  • A: All metrics are instance related.
  • B: Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.
  • C: A space usage management alert is automatically cleared after the underlying problem is resolved.
  • D: They are generated by SMON when a tablespace is 97% full.
  • E: Metrics are statistical counts for a specific unit.
  • F: STATISTICS_LEVEL must be set to ALL to generate alerts.
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Question 2

Which three are true about opatchauto? (Choose three.)

  • A: It performs a shutdown and then a restart of all processes in both Oracle Grid Infrastructure and Oracle Database home during the patching process.
  • B: It must be invoked by a user with root user privileges.
  • C: Patches are applied via opatchauto.
  • D: Users must always input patch plans to opatchauto.
  • E: It requires the Oracle Grid Infrastructure and Oracle Database instances to be shut down before being invoked.
  • F: It applies patches in nonrolling mode by default.
  • G: It is used to apply interim patches to Oracle Grid Infrastructure and Oracle Database home combinations.
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Question 3

Application PDBs, SALES_APP1 and SALES_APP2, must be created and they must access common tables of the SALES_APP application.
Examine these steps:

  1. Install the SALES_APP application, including the common tables, in the application root.
  2. Install the SALES_APP application in the application root and the common tables in both the CDB root and the application root.
  3. Create an application seed.
  4. Install the SALES_APP application in the application seed.
  5. Create the SALES_APP1 and SALES_APP2 application PDBs.
  6. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application root.
  7. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application seed.
  8. Sync the application seed with the application root.
    Which are the minimum required steps in the correct sequence?
  • A: 3, 4, 1, 6, 8
  • B: 2, 5, 6
  • C: 1, 5, 6
  • D: 1, 3, 5, 6, 7
  • E: 1, 3, 5, 7
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Question 4

Which two are prerequisites for using FLASHBACK TABLE? (Choose two.)

  • A: A table's constraints must be disabled before issuing the flashback.
  • B: The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must be granted to the user performing the flashback.
  • C: A table's indexes must be set to unusable before issuing the flashback.
  • D: Row Movement must be enabled on the table being flashed back.
  • E: The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must be granted to the table owner.
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Question 5

Which two are true about RMAN Multisection backups when a very large data file is divided into four sections? (Choose two.)

  • A: Each of the file sections must be processed serially.
  • B: The four sections can be created serially.
  • C: The four sections must be image copies.
  • D: The four sections can be created in parallel.
  • E: The four sections must be contained in backup sets.
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Question 6

Which three are true about the Oracle Optimizer? (Choose three.)

  • A: It obeys all hints.
  • B: It considers the filters in WHERE clauses when generating execution plans for SQL statements.
  • C: It can re-optimize execution plans after previous executions detect suboptimal plans.
  • D: It considers object statistics when generating execution plans for SQL statements.
  • E: It updates stale object statistics in the Data Dictionary.
  • F: It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.
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Question 7

RMAN has just been connected to a target database and the recovery catalog database.
In which two cases would an automatic full resynchronization occur between this target database's control file and the RMAN recovery catalog? (Choose two.)

  • A: when control file metadata for archive log backups or image copies has been overwritten in the target database's control file due to being older than CONTROL_FILE_RECORD_KEEP_TIME
  • B: when control file metadata for data file backups or image copies has been overwritten in the target database's control file due to being older than CONTROL_FILE_RECORD_KEEP_TIME
  • C: when a new tablespace is added to a registered target database
  • D: when a backup of the current control file is created
  • E: when the target is first registered
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Question 8

You plan to perform cross-platform PDB transport using XTTS.
Which two are true? (Choose two.)

  • A: A backup of the PDB must exist, taken using the BACKUP command with the TO PLATFORM clause.
  • B: The source PDB must be in MOUNT state.
  • C: The source PDB must not be an application root.
  • D: The source PDB can be in MOUNT or OPEN state.
  • E: The source and target platforms must have the same endianness.
  • F: Automatic conversion of endianness occurs.
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Question 9

Which three true about recovering tables using RMAN? (Choose three.)

  • A: RMAN can recover tables in the SYSAUX tablespace.
  • B: RMAN can recover tables owned by the SYS user.
  • C: RMAN can recover tables in the SYSTEM tablespace.
  • D: RMAN always uses an auxiliary instance.
  • E: RMAN can recover tables in a standby database.
  • F: RMAN can recover a table after a DDL operation has altered the table structure.
  • G: RMAN can recover tables owed by the SYSTEM user.
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Question 10

Which operating system group is NOT needed to perform an Oracle Database installation?

  • A: OSASM
  • B: OSKMDBA
  • C: OSDBA
  • D: OSOPER
  • E: OSRACDBA
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Question 11

You want to transport the UNIVERSITY tablespace from one database to another.
The UNIVERSITY tablespace is currently open read/write.
The source and destination platforms have the same endian format.
Examine this list of steps:

  1. Make the UNIVERSITY tablespace read-only on the source system.
  2. Export the UNIVERSITY tablespace metadata using EXPDP.
  3. Create a cross-platform backup set from the UNIVERSITY tablespace on the source system, using an RMAN command that includes the DATAPUMP clause.
  4. Copy the cross-platform backup sets to the destination system.
  5. Copy the Data Pump dump set from the source to the destination system.
  6. Restore the cross-platform backup set on the destination system using an RMAN command that includes the DATAPUMP clause.
  7. Import the UNIVERSITY tablespace metadata using IMPDP.
  8. Make the UNIVERSITY tablespace read/write on the destination system.
    Which are the minimum number of steps required, in the correct order, to transport the UNIVERSITY tablespace?
  • A: 1, 3, 4, 6, 8
  • B: 3, 4, 6
  • C: 1, 2, 3, 4, 5, 6, 7, 8
  • D: 2, 3, 4, 5, 6, 7
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Question 12

Examine this configuration:

  1. CDB1 is an Oracle Database 12c Release 2 container database (CDB).
  2. PDB1 and PDB2 are two pluggable databases (PDBs) in CDB1.
    After successfully performing all the preupgrade tasks, you execute these commands from the Oracle Database 18c environment:
Image 1

What is the outcome?

  • A: It fails because PDB$SEED is in MIGRATE state.
  • B: Only CDB$ROOT, PDB$SEED, and PDB2 are upgraded.
  • C: Only CDB$ROOT, PDB$SEED, and PDB1 are upgraded.
  • D: CDB$ROOT, PDB$SEED, PDB1, and PDB2 are upgraded.
  • E: Only CDB$ROOT and PDB$SEED are upgraded.
  • F: It fails because PDB2 is not in UPGRADE state.
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Question 13

Which two are true about the character sets used in an Oracle database? (Choose two.)

  • A: Single-byte character sets provide better performance than multibyte character sets.
  • B: Unicode enables information from any language to be stored using a single character set.
  • C: Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).
  • D: Single-byte character sets always use 7-bit encoding schemes.
  • E: Multibyte character sets allow more efficient space utilization than single byte character sets.
  • F: Single-byte character sets always use 8-bit encoding schemes.
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Question 14

Which three are true about a whole database backup? (Choose three.)

  • A: It can consist of either backup sets or image copies.
  • B: It is the only possible backup type for a database in NOARCHIVELOG mode.
  • C: It can be consistent.
  • D: It can be created only by using RMAN.
  • E: It can be inconsistent.
  • F: It always includes all data files, the current control file, the server parameter file, and archived redo logs.
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Question 15

Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases? (Choose two.)

  • A: Space is always reclaimed automatically when the retention period for Flashback logs is lowered.
  • B: Space might be reclaimed proactively before space pressure occurs.
  • C: Space might be reclaimed automatically when the retention period for Flashback logs is lowered.
  • D: Space is only reclaimed when there is space pressure in the Fast Recovery Area. (FRA)
  • E: Space is always reclaimed proactively before space pressure occurs.
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Question 16

Which three are true about SGA memory management in a multitenant database? (Choose three.)

  • A: Setting DB_CACHE_SIZE for a PDB guarantees a minimum amount of Database Buffer Cache memory for that PDB.
  • B: The SHARED_POOL_SIZE setting for a PDB can be up to 80% of the SHARED_POOL_SIZE setting of the root container.
  • C: Setting SHARED_POOL_SIZE for a PDB guarantees a minimum amount of Shared Pool memory for that PDB.
  • D: The SGA_TARGET setting for a PDB cannot exceed 50% of the SGA_TARGET value of the root container.
  • E: Setting SGA_TARGET for a PDB guarantees a minimum amount of SGA memory for that PDB.
  • F: SGA_MIN_SIZE cannot be set for a PDB.
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Question 17

Which three actions will add a resource to an Oracle Restart configuration? (Choose three.)

  • A: creating an Oracle Database service by modifying the SERVICE_NAMES parameter
  • B: creating a disk group using the CREATE DISKGROUP SQL statement
  • C: creating a database using the CREATE DATABASE SQL statement
  • D: creating a database service using DBMS_SERVICE.CREATE_SERVICE
  • E: creating a database service using Oracle Database Configuration Assistant (DBCA)
  • F: creating an Oracle Automatic Storage Management (ASM) instance with ASM Configuration Assistant (ASMCA)
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Question 18

Which three are true about creating container databases (CDBs) and pluggable databases (PDBs) in Oracle 19c and later releases? (Choose three.)

  • A: A PDB snapshot can be a sparse copy of a source PDB.
  • B: A PDB snapshot depends on an existing storage snapshot of the source PDB.
  • C: A CDB can be duplicated using Recovery Manager (RMAN) with no configuration required before starting the duplication.
  • D: A CDB can be duplicated using the Database Configuration Assistant (DBCA) in silent mode with no configuration required before starting the duplication.
  • E: A PDB snapshot can be a full copy of a source PDB.
  • F: A snapshot copy PDB can be a full copy of a source PDB.
  • G: A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.
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Question 19

Which two are true about Oracle Grid Infrastructure for a Standalone Server? (Choose two.)

  • A: It supports volume management, file system, and automatic restart capabilities.
  • B: It must be installed before the Oracle database software is installed.
  • C: The CSS daemon runs from the Grid Infrastructure home.
  • D: It can manage database resources on the server where it is installed or on a different server.
  • E: It requires Oracle Automatic Storage Management (ASM) components to be installed separately.
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Question 20

Which two are true about an RPM-based Oracle Database installation? (Choose two.)

  • A: It uses a service configuration script to create a single-instance database as part of the installation.
  • B: From Oracle Database 18c, a single RPM can be used to install only Oracle Database Server for a single instance.
  • C: It performs a software-only Oracle Database installation.
  • D: It includes the Oracle Preinstallation RPM.
  • E: It requires an Unbreakable Linux Network (ULN) subscription.
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Question 21

HR_ROOT is an application container with the HR_APP application installed.
No application PDBs and no application seed have yet been created in HR_ROOT.
An application PDB, PDB1, must be created so that the HR_APP application's common objects are accessible to it.
Which two methods can be used? (Choose two.)

  • A: Create an application seed, and install HR_APP in it.
  • B: Create the PDB1 application PDB and install HR_APP in it.
  • C: Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.
  • D: Create the PBD1 application PDB and synchronize it with HR_ROOT.
  • E: Create the PBD1 application PDB and synchronize it with PDB$SEED.
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Question 22

Which three are true about Rapid Home Provisioning of Oracle software? (Choose three.)

  • A: It can be used only on nodes with Oracle Grid Infrastructure installed.
  • B: It can be used to patch existing Oracle software installations.
  • C: It can be used to create templates of Oracle homes as gold images of only Oracle databases.
  • D: It can be used to deploy new homes without disrupting active databases.
  • E: It can be used to create a single-instance Oracle Database in an already-installed Oracle home.
  • F: It can be used to upgrade only single-instance databases running on Oracle Restart.
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Question 23

In performance management, which two factors might reduce the ability of an application to scale to a large number of users? (Choose two.)

  • A: poorly written SQL
  • B: the number of tablespaces containing tables updated by a transaction
  • C: poorly trained users who do not commit transactions
  • D: the number of data files containing extents belonging to tables updated by a transaction
  • E: issuing multiple savepoints during a transaction
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Question 24

Which three are true about monitoring waits for sessions and services? (Choose three.)

  • A: V$SESSION_EVENT displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
  • B: V$SERVICE_EVENT displays all waits for all services if the wait has occurred at least once for a service.
  • C: V$SESSION_WAIT_CLASS displays waits broken down by wait class only for waiting sessions.
  • D: V$SESSION_WAIT and V$SESSION both contain details of the event on which a non-waiting session last waited.
  • E: V$SESSION_EVENT displays all waits for all past sessions if the wait has occurred at least once for a session.
  • F: V$SESSION_WAIT and V$SESSION both contain details of the event on which a session is currently waiting.
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Question 25

You issued this command:
RMAN> BACKUP RECOVERY AREA FORCE;
Which three are true? (Choose three.)

  • A: All files in the current FRA that have been backed up already, are backed up.
  • B: All Oracle recovery files normally written to the FRA and which have been backed up already to the current FRA, are backed up.
  • C: All Oracle recovery files normally written to the FRA and which have been backed up already to in any previous FRA, are backed up.
  • D: All Oracle recovery files normally written to the FRA and which have not yet been backed up, are backed up.
  • E: All files in any previous FRA that have not yet been backed up, are backed up.
  • F: All files in the current fast recovery area (FRA) that have not yet been backed up, are backed up.
  • G: All files in any previous FRA that have been backed up already, are backed up.
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