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发布时间:2024-09-18 18:43:14

[不定项选择题]Choose four. Which four are true about performing Tablespace

Point-In-Time Recovery (TSPITR) using Recovery Manager (RMAN)?


A.

It can be performed using an auxiliary instance managed by RMAN.


B.

It can be performed using an auxiliary instance managed by a DBA.


C.

It can be used to recover a truncated table.


D.

It can be performed repeatedly until the correct time is found without using an

RMAN catalog. 


E.

RMAN always includes tablespaces containing UNDO segments

In the recovery set.


F.

RMAN automatically adds any required tablespaces to the recovery set to

Make it selfcontained.


G. FLASHBACK DATABASE must be enabled for it to work.
H. It can be used to recover a dropped tablespace.

更多"[不定项选择题]Choose four. Which four are"的相关试题:

[不定项选择题]choose three Which three are true about Transparent Data Encryption

(TDE)?


A. It uses a single master key for a database.
B. It replaces secure application roles.
C. It encrypts only data on the client.
D. It stores the current and all past master keys in the keystore.
E. Master encryption keys are managed by Oracle Database Vault.
F. It can encrypt data at the column level.
[不定项选择题]choose three Which three are true about RMAN duplexed backup sets or image copies?
A.

A backup set may be duplexed with both copies written to disk.


B.

An image copy on disk can be copied to disk.


C.

A backup set may be duplexed with both copies written to sbt.


D.

A backup set may be duplexed so that one copy is written to sbt and the other

To disk.


E. An image copy on disk can be copied to sbt.
F. An image copy on sbt can be copied to disk.
[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 three. Which three are true about configuring CONTROLFILE

AUTOBACKUP by using RMAN?


A. The control file is backed up whenever a new tablespace is created.
B. The server parameter file (SPFILE) is automatically backed up each time the
Control file is backed up.
C. The control file is backed up automatically each time the SPFILE is backed up
Manually.
D. The control file is backed up whenever a new table is created.
E. It requires the use of fast recovery area (FRA).
F. The control file is backed up whenever an RMAN backup is successfully
Recorded in the catalog.
[不定项选择题]Choose three. Which two are true about creating RMAN backups for an

Oracle container database?


A.

Control file backups can be created while connected to the root container.


B.

Archived Redo Log backups can be created while connected to an application root CDB.


C.

Control file backups can be created while connected to a nonroot container.


D.

Online Redo Log backups can be created while connected to the root container.


E.

The BACKUP TABLESPACE command can back up a PDB tablespace even if RMAN is connected to CDB$ROOT.

[不定项选择题]Choose three. Which three are true about the Oracle Optimizer?
A.

It considers the filters in WHERE clauses when generating execution plans for SQL statements.


B.

It obeys all hints.


C.

It considers object statistics when generating execution plans for SQL statements.


D.

It updates stale object statistics in the Data Dictionary.


E. It can only use SQL Plan Directives tied to the SQL statement for which a plan
Is being generated.
F.

It can re-optimize execution plans after previous executions detect suboptimal plans.

[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 three.

Which three are true about creating container databases (CDBs) and

Pluggable databases (PDBs) in Oracle 19c and later releases?


A.

A snapshot copy PDB can be a full copy of a source PDB.


B.

A snapshot copy PDB does not depend on an existing storage snapshot of the

Source PDB.


C.

A PDB snapshot depends on an existing storage snapshot of the source PDB.


D.

A PDB snapshot can be a full copy of a source PDB.


E. A CDB can be duplicated using the Database Configuration Assistant (DBCA) in
Silent mode with no configuration required before starting the duplication.
F. A CDB can be duplicated using Recovery Manager (RMAN) with no
Configuration required before starting the duplication.
G. A PDB snapshot can be a sparse copy of a source PDB.
[不定项选择题]Choose three. Which three are true about Rapid Home Provisioning

(RHP), which has been available since Oracle 18c?


A. It can be used to deploy Grid Infrastructure homes, including Oracle Restart.
B. It can be used to deploy Oracle Database homes.
C. It is an Oracle Database service.
D. It cannot be used to provision applications.
E. It cannot be used to provision middleware.
F. It is an Oracle Grid Infrastructure service.
[不定项选择题]Choose three. Which three are true about Data Pump in an Oracle

Multitenant environment?


A. It can be used to transport data from a non-CDB to a PDB.
B. It can be used to clone a CDB.
C. It can be used to transport data between PDBs.
D. It can be used to transport data from a PDB to a non-CDB.
E. It can be used to create a new PDB.
[不定项选择题]Choose two. Which two are true about backup set compression using
RMAN default compression?
A. Compressed backups cannot have a section size defined.
B. Compressed backups can be written only to media.
C. Binary compression adds CPU overhead to backup operations.
D. Unused blocks below the high water mark are backed up.
E. Compression can be done only for locally managed tablespaces.
[不定项选择题]Choose two. Which two are true about Lockdown profiles in a container

Database (CDB) and its pluggable databases (PDBs)?


A. A Lockdown profile created from a base Lockdown profile is always
Automatically modified if the profile on which it is based is modified.
B. A PDB Lockdown profile can be created in an application root.
C. A Lockdown profile created from a base Lockdown profile is never
Automatically modified if the profile on which it is based is modified.
D. A PDB Lockdown profile can be created in a regular PDB.
E. A PDB Lockdown profile can be created in CDB$ROOT .
[不定项选择题]Choose three. Which three are true about block media recovery?
A. To use it, Flashback Database must be enabled.
B. A block being recovered is not accessible.
C. It cannot repair logical corruption.
D. It can be performed on noncorrupt blocks.
E. The target database for which one or more blocks are to be recovered must be
In the OPEN state.
F. The data file containing the block being recovered remains online.
[不定项选择题]Choose two. Which two are true about poorly performing SQL

Statements and their tuning in Oracle database instances?


A. SQL statements performing many physical I/Os can always have their
Performance improved by creating indexes.
B. The solution that best optimizes one SQL statement can degrade the
Performance of others.
C. SQL statements doing joins always do more physical I/O than single table
Queries.
D. Poorly performing SQL statements can be tuned automatically by the Oracle
Server.
E. SQL statements doing only logical reads never require tuning because they do
No physical I/O.
[不定项选择题]Choose three. Which three are true about patchsets?
A.

They are installed via OPatch or OPatchAuto.


B.

A base release is not needed to install patchsets.


C.

They can be applied in a rolling fashion for Clusterware and the databases.


D.

Installing a patchset is considered an "upgrade."


E.

They can introduce new features.


F.

They are only released quarterly.

[不定项选择题]Choose three. Which three are true about using an RMAN Recovery

Catalog with a pluggable database (PDB) target connection in Oracle

Database 19c and later releases?


A.

The base catalog owner must give the Virtual Private Catalog access to

Metadata for one or more PDBs.


B.

The target PDB must be registered in both the base catalog and the Virtual Private Catalog.


C.

The base catalog must be used by RMAN when performing point-in-time

Recovery for the PDB registered in the Virtual Private Catalog.


D.

The base catalog must be enabled for Virtual Private Catalog use.


E. The target PDB must be registered in a Virtual Private Catalog.
F. The target PDB must be registered in a base catalog.
[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.

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