[不定项选择题]Which two are true about reclaiming space used by Flashback logs in

Oracle Database 19c 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.

[不定项选择题]choose two Which two are true about RMAN image copies?
A.

) They can only be written to disk.

B.

) They can be encrypted using Transparent Data Encryption (TDE).

C.

) They can be used as a level 0 incremental backup.

D.

) They can be used as a level 1 incremental backup.

E.) They are the only backup option available for databases in NOARCHIVELOG
Mode.

[不定项选择题]Choose two. Which two are true about backup encryption?
A. The Transparent Data Encryption (TDE) keystore is backed up using RMAN.
B. Vendor-specific media management software can be used for making
Encrypted RMAN backups to media.
C. The BACKUP BACKUPSET command can encrypt and decrypt backup sets.
D. Image copies can be encrypted.
E. Keystore-based encryption is the default mode for RMAN backup encryption.
F. Backup encryption can be enabled selectively for specific tablespaces.

[不定项选择题]Choose two. Which two are true about various Oracle security and

Auditing capabilities?

A.

Application-common Transparent Security Data Protection (TSDP) policies can

Be created only if all the PDBs in the application container are closed.

B.

Application-common TSDP policies are always container specific.

C.

Application-common OLS policies can be created only if all the PDBs in the

Application container are closed.

D.

Unified auditing can be automatically synchronized to all application PDBs in

An application container.

E. Fine-grained auditing (FGA) policies in an application root are automatically
Synchronized to all application PDBs contained in the application container when
They are updated.

[不定项选择题]Choose two. Which two are true about RMAN persistent configuration

Settings, administration, and their effects?

A. A DBA must specify either a redundancy retention policy or a recovery window
Retention policy.
B. A target database's persistent RMAN configuration settings are always
Synchronized automatically with the RMAN catalog.
C. Backups older than the recovery window retention policy are always deleted
Automatically if the backup location has insufficient space.
D. Backups written to the fast recovery area (FRA) that are obsolete based on the
Redundancy retention policy can be deleted automatically to free space.
E. A target database's persistent RMAN configuration settings are always stored
In the target's control file

[不定项选择题]Choose two. Which two are true about Optimizer Statistics?
A. They can be gathered by the DBMS_STATS package.
B. They provide real-time data about schema objects.
C. They are gathered by the SQL Tuning Advisor.
D. They are ignored by Optimizer if they are stale.
E. By default, they are automatically gathered by a maintenance job.

[不定项选择题]Choose two. Which two are true about Rapid Home Provisioning of

Oracle software?

A. It can be used for applications and middleware.
B. It can be used only for Oracle Grid Infrastructure, including Oracle Restart.
C. It can be used for both Oracle Database and Oracle Grid Infrastructure,
Including Oracle Restart.
D. It can be used for both Oracle Database and Oracle Grid Infrastructure,
Excluding Oracle Restart.
E. It can be used only for Oracle Grid Infrastructure, excluding Oracle Restart.

[不定项选择题]Choose two. Which two are true about monitoring waits for sessions

And services?

A. V$SERVICE_EVENT displays wait counts for every wait event for each service
Even including counts of zero for waits that never occurred.
B. V$SESSION_WAIT and V$SESSION both contain details of the event on which
A non-waiting session last waited.
C. V$SESSION_WAIT and V$SESSION both contain details of the event on which
A waiting session is currently waiting.
D. V$SESSION_EVENT displays all waits events for those events that have
Occurred at least once for sessions that have now terminated.
E. V$SESSION_WAIT_CLASS displays waits broken down by wait class only for
Terminated sessions.

[不定项选择题]Which two are true about Optimizer Statistics? (Choose two.)
A. They can be gathered by the DBMS_STATS package.
B. They are gathered by the SQL Tuning Advisor.
C. They provide real-time data about schema objects.
D. They are ignored by Optimizer if they are stale.
E. By default, they are automatically gathered by a maintenance job.

[不定项选择题]Which two are true about diagnosing Oracle Database failure situations

Using Data Recovery Advisor? (Choose two.)

A.

Using the Data Recovery Advisor LIST FAILURE command always requires that

The database for Which failures are to be listed is in MOUNT state.

B.

A failure can be closed only when it has been repaired.

C.

Data Recovery Advisor can be used if a database is closed.

D.

The Data Recovery Advisor CHANGE FAILURE command can be used only to

Change failure priorities.

E. Data Recovery Advisor can proactively check for failures.

[不定项选择题]Which two are true about Oracle Optimizer Statistics, their use, and

Their collection? (Choose two.)

A. The number of table rows is considered when evaluating the cost of accessing
A table using an index.
B. Index balanced B*Tree height is considered when evaluating the cost of using
An index.
C. The Statistics Advisor can help recommend the best way to gather statistics.
D. Statistics collected using DBMS_STATS always yield the best optimizer result.
E. The Statistics Advisor generates actions for all recommendations.

[不定项选择题]Which two are true about gathering optimizer statistics? (Choose two.)
A. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to
CDB$ROOT gathers
Object statistics in all open PDBs except PDB$SEED.
B. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB
Opened in
Read/write mode gathers object statistics for that PDB.
C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to
CDB$ROOT gathers
Object statistics only in CDB$ROOT.
D. System statistics can be gathered only while connected to CDB$ROOT.
E. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to
CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)

[不定项选择题]Which two are true about flashback features in Oracle Database 19c and

Later releases? (Choose two.)

A.Flashback logs are automatically purged when
DB_FLASHBACK_RETENTION_TARGET is set lower than the time they have
Already been retained.
B. Flashback logs are monitored and proactively deleted when beyond the
Retention period defined in DB_FLASHBACK_RETENTION_TARGET only after
There is space pressure.
C. Flashback logs are monitored and proactively deleted when beyond the
Retention period defined in DB_FLASHBACK_RETENTION_TARGET before there is
Space pressure.
D. Flashback logs are monitored for being older than the retention period
Defined in DB_FLASHBACK_RETENTION_TARGET and can be deleted by an
Administrator written event trigger.
E. Flashback logs are automatically purged whenever the value of
DB_FLASHBACK_RETENTION_TARGET is changed.

[不定项选择题]Which two are true about duplicating pluggable databases (PDBs) with

RMAN? (Choose two.)

A.

Two or more PDBs can be duplicated with the same RMAN DUPLICATE

Command.

B.

All tablespaces belonging to a PDB must be duplicated when duplicating the

PDB.

C.

The auxiliary instance is automatically created with

ENABLE_PLUGGABLE_DATABASE = TRUE.

D.

A user with SYSDBA or SYSBACKUP must be logged in with RMAN to the PDB

To duplicate it.

E. CDB$ROOT and PDB$SEED are automatically duplicated.

[不定项选择题]Which two are true about Oracle Flashback features? (Choose two.)
A. FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVE D
REDO LOG files.
B. FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and
ARCHIVE D REDO
LOG files.
C. FLASHBACK TABLE can undrop a column.
D. FLASHBACK DROP can undrop an index when undropping a table.
E. After a database is restored from flashback logs using the FLASHBACK
DATABASE command, it is
Sometimes rolled forward using redo logs.

[不定项选择题]Which two statements are true about Resource Manager plans for

Individual pluggable databases (PDB plans) in a multitenant container

Database (CDB)?

A. If no PDB plan is enabled for a pluggable database, then all sessions for that
PDB are treated to an equal degree of the resource share of that PDB.
B. In a PDB plan, subplans may be used with up to eight consumer groups.
C. If a PDB plan is enabled for a pluggable database, then resources are allocated
To consumer groups across all PDBs in the CDB.
D. If no PDB plan is enabled for a pluggable database, then the PDB share in the
CDB plan is dynamically calculated.
E. If a PDB plan is enabled for a pluggable database, then resources are allocated
To consumer groups based on the shares provided to the PDB in the CDB plan
And the shares provided to the consumer groups in the PDB plan.

[不定项选择题]Which two statements are true about recovering logically corrupted

Tables or table partitions from an RMAN backup?

A. Tables or table partitions can be recovered by using an auxiliary instance only.
B. Tables or table partitions with a foreign key cannot be recovered.
C. Tables or table partitions can be recovered only when the database is in
Mount state.
D. Tables or table partitions from the system and sysaux tablespaces cannot be
Recovered.
E. Tables with not null constraints cannot be recovered.

[不定项选择题]Choose two. Which two are true about PDB archive files?
A. DBMS_PDB.CHECK_PLUG_COMPATIBILITY can be run against a PDB archive.
B. They contain a PDB manifest file and all the data files in uncompressed form
For a PDB.
C. They contain all the data files only in uncompressed form for a PDB.
D. They must be created using the DBMS_PDB package.
E. They contain a PDB manifest file and all the data files in compressed form for a
PDB.
F. They contain all the data files only in compressed form for a PDB.

[不定项选择题]Choose two.

Which two are true about RMAN virtual private catalogs (VPCs)?

A.

The RMAN catalog owner can grant access for an already registered database

To a new virtual catalog owner.

B.

Each VPC is owned by the recovery catalog schema owner.

C.

RMAN uses Oracle Virtual Private Database (VPD) to implement VPCs.

D.

Only one target database can be registered in a VPC.

E.

VPC functionality is enabled by default.

[不定项选择题]Choose two. Which two are true about an RPM-based Oracle Database

Installation?

A.

It includes the Oracle Preinstallation RPM.

B.

From Oracle Database 18c, a single RPM can be used to install only Oracle

Database Server for a single instance.

C.

It requires an Unbreakable Linux Network (ULN) subscription.

D.

It performs a software-only Oracle Database installation.

E. It uses a service configuration script to create a single-instance database as
Part of the installation.