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  • Exam Name: Oracle Database Administration II
  • Last Update: Apr 24, 2024
  • Questions and Answers: 286
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1z0-083 Practice Exam Questions with Answers Oracle Database Administration II Certification

Question # 6

You plan to create a database by using the Database Configuration Assistant (DBCA), with t he following specifications: Applications will connect to the database via a middle tier. The number of concurrent user connections will be high. The database will have mixed workload, with t he execution of complex BI queries scheduled at night. Which DBCA option must you choose to create the database?

A.

a General Purpose database template with default memory allocation

B.

a Data Warehouse database template, with t he dedicated server mode option and AMM enabled

C.

a General Purpose database template, with t he shared server mode option and Automatic Memory Management (AMM) enabled

D.

a default database configuration

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Question # 7

A redaction policy was added to the SAL column of the SCOTT.EMP table: BEGIN DBMS_REDACT.ADD_POLICY( object_schema object_name column_name policy_name function_type expression => 'SCOTT', => 'EMP', => 'SAL', => 'SCOTT_EMP', => DBMS_REDACT.FULL, => 'SYS_CONTEXT(''SYS_SESSION_ROLES'',''MGR'') END; All users have their default set of system privileges. For which three situations will data not be redacted?

A.

SYSsessions,regardlessoftherolesthataresetinthesession

B.

SYSTEMsessions,regardlessoftherolesthataresetinthesession

C.

SCOTT sessions, only if the MGR role is set in the session

D.

SCOTT sessions, only if the MGR role is granted to SCOTT

E.

SCOTTsessions,becauseheistheownerofthetable

F.

SYSTEM session, only if the MGR role is set in the session

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Question # 8

Which three are true about an application container?

A.

It can contain a single application

B.

Two application containers can share an application seed PDB.

C.

It must have an application root PDB.

D.

An application PDB can belong to multiple application containers.

E.

It must have an application seed PDB.

F.

It can contain multiple applications.

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Question # 9

Choose the best answer. Examine this output of an export from the current release of an Oracle multitenant database: $ sqlplus system/oracle . SQL> col name for a10 SQL> select name, open_mode from v$pdbs; NAME OPEN_MODE ---------------------------------------PDB$SEED READ ONLY PDB1 READ WRITE PDB2 MOUNTED SQL> exit Next you execute: $ expdp system/oracle full=y What is the outcome?

A.

It fails because Data Pump cannot be container.

B.

It creates a full export of the root

C.

It creates a full export of the root

D.

It creates a full export of only the used while connected to the root container and PDB1. container and all PDBs. container and all open PDBs. root container.

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Question # 10

A container database (CDB) contains two pluggable databases PDB1 and PDB2. The LOCAL_UNDO_ENABLED database property is set to FALSE in the CDB. Data file 24 of PDB2 was deleted and you need to restore and recover it. The only RMAN backup that exists was created with the BACKUP DATABASE command while connected to CDB$ROOT. Which three are true? (Choose three.)

A.

Data file 24 can be recovered only while connected to PDB2.

B.

Data file 24 can be restored and recovered while connected to CDB$ROOT.

C.

Data file 24 can be restored only while connected to CDB$ROOT.

D.

Data file 24 can be restored only while connected to PDB2.

E.

Data file 24 can be recovered while connected to PDB2.

F.

Data file 24 can be recovered while connected to CDB$ROOT.

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Question # 11

Choose three. In which three situations can you use threshold server-generated alerts to help diagnose and fix problems?

A.

when free space in a dictionary managed tablespace falls below a specified percentage

B.

when free space in a locally managed tablespace falls below a specified percentage

C.

when the total number of locked user account exceeds a specific value

D.

when the number of logons per second exceeds a specific value

E.

when a resumable statement is suspended

F.

when the total number of logons exceeds a specific value

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Question # 12

Examine this command: $ rhpctl move database –sourcehome Oracle_home_path –destinationhome Oracle_home_path For which two purposes can you use this command? (Choose two.)

A.

to switch an existing Oracle Database home to a newer release of Oracle software on the same server

B.

to switch to a read-only Oracle home

C.

to switch back to the previous Oracle home as part of a rollback operation

D.

to switch the Oracle Database home when using a centralized Rapid Home Provisioning server

E.

to switch to a patched Oracle Database home Answer: CE

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Question # 13

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)

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Question # 14

Choose two. Which two are true about server-generated alerts?

A.

Stateless alerts can be cleared manually.

B.

Stateless alerts are automatically cleared after one day.

C.

Stateful alerts are purged automatically from the alert history after one day.

D.

Stateless alerts can be purged manually from the alert history.

E.

Stateful alerts must be cleared by a DBA to resolve the problem identified in the alert.

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Question # 15

You are administering a multitenant container database (COB) that contains two pluggable databases (PDBs), pdb1 and pdb2. You are connected to pdb2 as a common user with DBA privileges. The statistics_level parameter is PDB modifiable. As the user sys, execute the following command on pdb2: SQL> ALTER SYSTEM SET STATISTICS_LEVEL=ALL SID='*' SCOPE=SPFILE; Which statement is true about the result of this command?

A.

The statistics_level parameter is set to all when any of the PDBs is reopened.

B.

The statistics_level parameter is set to all only for PDB2 when it is reopened.

C.

The statistics_level parameter is set to all when the root database is restarted.

D.

The statement is ignored because there is no SPFILE for a PDB.

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Question # 16

Choose the best answer. A schema owner truncated a table in error and must recover the data. Which Oracle Flashback feature could be used to recover the data?

A.

FLASHBACK DATABASE

B.

FLASHBACK TABLE

C.

FLASHBACK VERSION QUERY

D.

FLASHBACK DATA ARCHIVE

E.

FLASHBACK TRANSACTION

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Question # 17

Which two statements are true about RMAN duplexed backups?

A.

It is not supported for image copies.

B.

It is only supported for backups to tape via the media management interface.

C.

Duplex backups can be performed on either disk or media, but cannot be performed on media and disk simultaneously.

D.

Duplex backups can contain only data files and control files.

E.

For performing duplexed backups, the parallelism for the device must be set equal to the number of copies.

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Question # 18

Which three are true about Automatic Workload Repository (AWR)? (Choose three.)

A.

By default, AWR snapshots are taken every 60 minutes.

B.

Its collection level is determined by the value of the STATISTICS_LEVEL database parameter.

C.

By default, AWR snapshots are retained for 7 days.

D.

The taking of AWR snapshots can be disabled.

E.

AWR data is stored in the SYSTEM tablespace.

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Question # 19

Which two are true about creating RMAN backups for an Oracle container database?

A.

Online Redo Log backups can be created while connected to CDB$ROOT

B.

Control file backups can be created while connected to CDB$ROOT.

C.

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

D.

Archived Redo Log backups can be created while connected to PDB

E.

Control file backups can not be created while connected to a PDB

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Question # 20

Which two are true about RMAN backups when using a media manager to write backups to tape when there are only two tape drives? (Choose two.)

A.

SBT tape compression can be used even if no RMAN compression is configured.

B.

Any backup set written to the SBT device in this configuration can contain a maximum of two backup pieces.

C.

Any backup written to the SBT device in this configuration can contain a maximum of two backup sets.

D.

SBT tape compression and RMAN backup compression should be used in parallel.

E.

The SBT device should be configured to use PARALLELISM 2 to allow both tape drive to be used simultaneously.

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Question # 21

choose one You want to create a test database as a replica of your production database with minimum intervention from a DBA. Which method would you use?

A.

Use DBCA to create a template from the existing database to contain the database structure with data files and then use the same template to create the database in the new location.

B.

Use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the database structure.

C.

Use DBCA to create a template from the existing database to contain the database structure and then manually copy the data by using Oracle Data Pump.

D.

Create the database by using the CREATE DATABASE . . . command and manually import data by using Data Pump.

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Question # 22

Choose two. Which two are true about the SQL Tuning Advisor?

A.

It can recommend semantic changes to SQL statements.

B.

It prevents performance regressions for SQL statements when changes are made.

C.

It checks each query being analyzed for missing or stale statistics.

D.

It considers all SQL statements being analyzed by the advisor task as a group.

E.

It only recommends syntactic changes to SQL statements.

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Question # 23

Choose three. In a single-instance, multitenant container database (CDB), which three are only ever defined in or part of CDB$ROOT?

A.

redo logs

B.

control files

C.

all data dictionary metadata

D.

user-defined PL/SQL packages

E.

temporary tablespaces

F.

mandatory Oracle-supplied PL/SQL packages

G.

undo tablespaces

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Question # 24

Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

A.

Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.

B.

A connection to an auxiliary instance is always required.

C.

A subset of the target database can be duplicated.

D.

A new DBID is always created for the duplicated database.

E.

A connection to the recovery catalog instance is always required.

F.

A backup of the target database is always required.

G.

Duplication can be done by having the target database instance push copies to the auxiliary database instance.

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Question # 25

Choose three. Which three are true about upgrading an application in an application container?

A.

An application root clone gets created automatically.

B.

The upgrade can be performed when connected either to CDB$ROOT or to PDB$SEED.

C.

After an application upgrade, the application container's PDBs remain synchronized with the existing application root.

D.

The upgrade must be performed when connected to CDB$ROOT.

E.

An application name and version number must be specified to upgrade the application.

F.

After an application upgrade, the application container's PDBs are automatically synchronized with the application root clone.

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Question # 26

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.

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Question # 27

Choose three. Which three are true about OPatch ?

A.

It requires installation of Oracle Universal Installer.

B.

It supports Rolling Patching.

C.

It must be invoked as the user that owns the software being patched.

D.

It is a Java-based utility for applying patchsets.

E.

It is platform independent.

F.

It can be used to apply interim patches to the Grid Infrastructure and Database Home combination.

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Question # 28

Which three are true about using Database Resource Manager in an Oracle multitenant environment?

A.

PDB-level resource plans can limit uncommitted UNDO per consumer group.

B.

A PDB-level resource plan can limit session PGA memory.

C.

A CDB-level resource plan can limit PDB UNDO use.

D.

A CDB-level resource plan can limit session CPU utilization.

E.

A CDB-level resource plan is mandatory when using PDB-level resource plans.

F.

A CDB-level resource plan can limit PDB CPU utilization

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Question # 29

Choose the best answer. 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 root. 7. Sync seed. 8. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application the SALES_APP1 and SALES_APP2 application PDBs with the application the application seed with the application root.

Which are the minimum required steps in the correct sequence?

A.

1,3,5,7

B.

3,4,1,6,8

C.

1,3,5,6,7

D.

1,5,6

E.

2,5,6

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Question # 30

Examine this output: Which two are true? (Choose two.)

A.

Any PDB not specified in the plan will be unable to execute statements in parallel.

B.

PDB3 can use all available parallel execution processes at times.

C.

PDB1 is always limited to 40% of the available system resources regardless of demand.

D.

Any PDB notspecified in the plan will be able to use a maximum of 16.5% of the available system resources.

E.

PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.

F.

PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.

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Question # 31

Oracle Data Redaction is active on the SCOTT.EMP table. You queried the table twice. SQL> SELECT ENAME, SAL, COMM, MGR, HIREDATE FROM EMP WHERE DEPTNO=30; SQL> SELECT ENAME, SAL, COMM, MGR, HIREDATE FROM EMP WHERE DEPTNO=30; Which is guaranteed to be true concerning the redaction policy?

A.

FULL redaction is active on the SAL column

B.

RANDOM redaction is active on the MGR column

C.

RANDOM redaction is active on the HIREDATE column

D.

PARTIAL redaction is active on the MGR column.

E.

PARTIAL redaction is active of the HIREDATE column.

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Question # 32

Which three are true about Automatic Workload Repository (AWR) snapshots?

A.

They can be retained forever.

B.

They are always created automatically.

C.

They are always created manually.

D.

They are generated if STATISTICS LEVEL is set to TYPICAL.

E.

They are generated if STATISTICS LEVEL is set to BASIC.

F.

They are generated if STATISTICS LEVEL is set to ALL.

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Question # 33

Which three methods can be used for heap table data migration after upgrading a database? (Choose three.)

A.

using Database Replay

B.

using SQL Developer

C.

using Oracle Data Pump

D.

using operating system file copy utilities

E.

using Database Upgrade Assistant

F.

using the CREATE TABLE AS SELECT SQL statement

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Question # 34

Which two are true about creating pluggable databases (PDBs) in Oracle 19c and later releases?

A.

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

B.

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

C.

A PDB snapshot can be a sparse copy of a source PDB

D.

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

E.

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

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Question # 35

Choose two. Which two are true about Oracle Database Configuration Assistant (DBCA)?

A.

It can only be launched from the command line interface.

B.

It can be launched from both the command line and the Universal Installer (OUI) interfaces.

C.

It can be used to create container databases and non-container databases.

D.

It can be used to change the character set of an existing database.

E.

It can be used to convert a non-container database to a container database.

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Question # 36

Choose the best answer You want to create a duplicate database DUP_DB from your production database PROD on the same host. The PROD database uses Automatic Storage Management (ASM) for storage. Regular backups are taken using RMAN connected to a recovery catalog. You create an auxiliary instance and want to execute the command: RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE; What is a prerequisite for the successful execution of this command

A.

RMAN must be connected to the target database instance and the auxiliary instance.

B.

A most recent backup set of the PROD database must exist.

C.

Flashback must be enabled for the PROD database.

D.

The target database must be in MOUNT state.

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Question # 37

Examine this configuration: 1. CDB1 is an Oracle Database 12c Release 2 database containing pluggable databases PDB$SEED, PDB1, and PDB2. 2. PDB$SEED is open READ ONLY 3. PDB1 is open READ WRITE 4. PDB2 is MOUNTED. 5. ORACLE_HOME is /u01/app/oracle/product/18.1.0/dbhome_1. You execute these commands before upgrading the database to the current release: For which databases will fixup scripts be created?

A.

CDB1, PDB$SEED, PDB1, and PDB2

B.

PDB$SEED, PDB1, and PDB2 only

C.

CDB1 and PDB$SEED only

D.

CDB1, PDB1, and PDB2 only

E.

CDB1, PDB$SEED, and PDB1 only

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Question # 38

Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)

A.

After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.

B.

Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT.

C.

After the change, only one undo tablespace can exist in CDB$ROOT.

D.

After the change, any user with the required privilege can create an undo tablespace in the PDBs.

E.

Undo tablespaces existing in PDBs must be dropped before the change.

F.

After the change, each existing PDB has to be reopened for the new undo mode to take effect.

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Question # 39

Which three are true about Automatic Workload Repository (AWR) and Automatic Database Diagnostic Monitor (ADDM) in an Oracle multitenant environment?

A.

AWR snapshots can be created in CDB$ROOT.

B.

ADDM can run in a nonroot container.

C.

AWR reports can be generated while connected to any container.

D.

All AWR data is stored in the CDB$ROOT SYSAUX tablespace.

E.

AWR snapshots can be created in a PDB.

F.

No AWR data is stored in the CDB$ROOT SYSAUX tablespace.

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Question # 40

Choose three. Which three are true about a container database (CDB)?

A.

It can be created from a non-CDB.

B.

It can contain only one PDB$SEED, which is created when the CDB is created.

C.

It can have local users with the same name in different PDBs.

D.

It can contain only one Application Container seed, which is created when the Application Container is created.

E.

It can be created by cloning an existing CDB.

F.

It can have any number of pluggable databases (PDBs) limited only by space availability.

G.

It contains predefined common roles in both the root and the seed.

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Question # 41

Which three are true about upgrading Oracle Grid Infrastructure? (Choose three.)

A.

A direct upgrade can be performed only from the immediately preceding Oracle Grid Infrastructure version.

B.

The newer version is installed in a separate Oracle Grid Infrastructure home on the same server as the existing version.

C.

An existing Oracle base can be used.

D.

The upgrade process will automatically install all mandatory patches for the current version of Oracle Grid Infrastructure.

E.

Existing Oracle Database instances must be shut down before starting the upgrade.

F.

Only the grid user can perform the upgrade.

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Question # 42

1.Which two are prerequisites for creating a backup-based duplicate database?

A.

connecting to the target database and a recovery catalog to execute the duplicate command

B.

creating a password file for an auxiliary instance

C.

connecting to an auxiliary instance

D.

matching the database identifier (DBID) of the source database and the duplicate database

E.

creating an SPFILE for the target database

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Question # 43

Choose three. Which three are true about RMAN archival backups with the RESTORE POINT clause?

A.

They are never considered obsolete by RMAN.

B.

They can optionally be written to a fast recovery area (FRA).

C.

All archive logs are retained after an archival backup is taken, until the next archival backup is taken of the same database.

D.

Archive logs are retained if they are necessary to allow the database to be recovered to a consistent state when an archival backup is restored.

E.

The SPFILE is included in the archival backup.

F.

Use of a recovery catalog is always required to support the creation and use of archival backups. G)The ARCHIVAL attribute for a backup overrides the RMAN retention policy.

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Question # 44

Choose three. In which three situations can you use threshold server-generated alerts to help diagnose and fix problems?

A.

when free space in a dictionary managed tablespace falls below a specified percentage

B.

when free space in a locally managed tablespace falls below a specified percentage

C.

when the total number of locked user account exceeds a specific value

D.

when the number of logons per second exceeds a specific value

E.

when a resumable statement is suspended

F.

when the total number of logons exceeds a specific value

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Question # 45

Examine the command for creating pluggable database PDB2 in container database CDB2. Select three options, any one of which is required for it to execute successfully. (Choose three.)

A.

Add the FILE_NAME_CONVERT clause to the statement and set the PDB_FILE_NAME_CONVERT parameter.

B.

Add only the CREATE_FILE_DEST clause to the statement.

C.

Set only the PDB_FILE_NAME_CONVERT parameter.

D.

Set the PDB_FILE_NAME_CONVERT parameter and enable OMF.

E.

Enable only OMF.

F.

Add the FILE_NAME_CONVERT clause to the statement and enable Oracle Managed Files (OMF)

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Question # 46

Choose the best answer. 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: $ export ORACLE_SID=cdb1 $ sqlplus / as sysdba SQL> STARTUP UPGRADE; SQL> SHOW pdbs CON_ID CON_NAME OPEN MODE RESTRICTED -------------------------------------------------¬-------------2 PDB$SEED 3 PDB1 4 PDB2 MIGRATE YES MOUNTED YES MOUNTED YES SQL> ALTER PLUGGABLE DATABASE pdb1 OPEN UPGRADE; Pluggable database altered. SQL> exit $ $ORACLE_HOME/perl/bin/perl catctl.pl -C 'PDB2' What is the outcome?

A.

It fails because PDB$SEED is in MIGRATE state.

B.

Only CDB$ROOT, PDB$SEED, and PDB1 are upgraded.

C.

Only CDB$ROOT, PDB$SEED, and PDB2 are upgraded.

D.

It fails because PDB2 is not in UPGRADE state.

E.

CDB$ROOT, PDB$SEED, PDB1, and PDB2 are upgraded.

F.

Only CDB$ROOT and PDB$SEED are upgraded.

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Question # 47

Choose two. When backing up to the Oracle Fast Recovery Area (FRA), you determine that the backup takes too long and suspect a performance bottleneck. Which two are true about diagnosing and tuning these problems?

A.

Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.

B.

If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then read I/O is a likely bottleneck.F

C.

If an RMAN BACKUP VALIDATE command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.

D.

If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.

E.

Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.

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Question # 48

Choose the best answer. Examine this configuration:

1. CDB1 is a container database.

2. There are several pluggable databases (PDBs) in CDB1.

5. Each PDB has several tables with referential integrity constraints.

6. FLASHBACK DATABASE is ON.

7. UNDO RETENTION GUARANTEE is enabled.

Multiple undesired multitable changes were made in all the PDBs.

Which method can be used to undo the changes using a single command?

A.

restore and recover database

B.

flashback transaction

C.

flashback database

D.

flashback table and transaction

E.

flashback table

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Question # 49

Which three are true about managing memory components in an Oracle database instance? (Choose three.)

A.

With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.

B.

With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.

C.

Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.

D.

Automatic Memory Management must be used together with locking the System Global Area into physical memory.

E.

With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.

F.

On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.

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Question # 50

A database is configured in ARCHIVE LOG mode. Full RMAN backups are taken and no backup to trace has been taken of the control file. A media failure has occurred. In which two scenarios is complete recovery possible? (Choose two.)

A.

when any archived log from, before, or after the most recent backup is corrupt.

B.

after losing all copies of the control file

C.

after losing an archived log from after the most recent backup

D.

after losing an archived log from before the most recent backup

E.

after losing the SYSTEM tablespace

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Question # 51

Choose three. Which three are true about corrupted data blocks and their recovery in an Oracle Database?

A.

If a row lock is held by a nonexistent transaction, the block containing the row is media corrupt.

B.

DB_BLOCK_CHECKING=TRUE causes a check sum to be added to each data block to help detect physical or media corruption.

C.

A media corrupt block is one where the block is not formatted correctly.

D.

The ANALYZE TABLE VALIDATE STRUCTURE CASCADE command verifies that each table row has an index entry pointing to it.

E.

If a row lock is held by a nonexistent transaction, the block containing the row is logically corrupt.

F.

DB_LOST_WRITE_PROTECT=TYPICAL causes extra logging overhead on the standby database.

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Question # 52

Which three are true about an application seed pluggable database (PDB)? (Choose three.)

A.

It is automatically synchronized with its application root PDB when an application is upgraded. B)It cannot be added to an application container after the application container has already been created.

B.

A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes.

C.

It is automatically synchronized with its application root PDB when an application is installed.

D.

It cannot be dropped from its application container.

E.

A new application PDB created by cloning an application seed PDB can have an up-to-date version of the application installed after cloning completes.

F.

It is not required in an application container.

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Question # 53

hoose two. Which two are true about Recovery Manager (RMAN) diagnostic message output?

A.

The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file only.

B.

The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file and to standard output.

C.

RMAN error stacks should be read from the bottom up as that is the order in which errors are generated.

D.

Media Management messages for SBT devices are written to an Oracle trace file.

E.

MAN error stacks should be read from the top down as that is the order in which errors are generated.

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Question # 54

Choose three. Which three are true about Audit policies in container databases (CDBs)?

A.

All audit records are written to the audit trail in CDB$ROOT .

B.

Application-common unified audit policies defined in an application root must be manually synchronized by each application PDB contained in the application root.

C.

Fine-grained auditing policies defined in an application root must be manually synchronized by each application PDB contained in the application root.

D.

A common unified audit policy can be created at the CDB level.

E.

A common unified audit policy can be created at the application root level.

F.

An application PDB cannot have a local audit policy.

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Question # 55

Choose two. Examine this configuration: 1. CDB1 is a container database. 2. APP1_ROOT is an application container contained in CDB1. 3. APP1_ROOT$SEED is the application seed contained in APP1_ROOT and synchronized with APP1_ROOT. 4. APP1_PDB1 and APP1_PDB2 are application PDBs contained in APP1_ROOT. 5. APP1_USER_APP is an application installed in APP1_ROOT at version 1.0. 6. USER1 is a common user in APP1_ROOT and all its application PDBs, created when version 1.0 of APP1_USER_APP was installed. You execute these commands: $ sqlplus sys/oracle@localhost:1521/cdb1 as sysdba SQL> ALTER SESSION SET CONTAINER=app1_root; Session altered. SQL> ALTER PLUGGABLE DATABASE APPLICATION app1_user1_app BEGIN UPGRADE '1.0' TO '2.0'; pluggable database altered. SQL> GRANT CREATE SESSION TO USER1; Grant succeeded. SQL> ALTER PLUGGABLE DATABASE APPLICATION app1_user1_app END UPGRADE TO '2.0'; Pluggable database altered SQL> ALTER SESSION SET CONTAINER=app1_pdb1; Session altered. SQL> ALTER PLUGGABLE DATABASE APPLICATION app1_user1_app SYNC; Pluggable database altered. Which two are true?

A.

USER1 can connect to CDB1.

B.

USER1 can connect to APP1_ROOT and APP1_PDB1.

C.

USER1 can connect to APP1_ROOT, APP1_ROOT$SEED, and APP1_PDB1.

D.

USER1 is defined in APP1_PDB2. E) USER1 can connect only to APP1_PDB1.

E.

USER1 can connect only to APP1_ROOT.

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Question # 56

Examine this configuration: While CDB1 is open, ‘/u02/app/oracle/fast_recover_area/cdb1/CDB1/ controlfile02.ctl’is accidentally deleted. To recover from this critical failure, you execute these commands:

What will be the outcome?

A.

It will create ‘$ORACLE_HOME/dbs/cdb1/CDB1/controlfile02.ctl’

B.

It will create ‘/u01/app/oralce/oradata/CDB1/controlfile/controlfile02.ctl’.

C.

It will re-create ‘/u02/app/oracle/fast_recover_area/cdb1/CDB1/controlfile02.ctl’

D.

It will create ‘/u01/app/oracle/product/12.2.0.1/db_1/dbs/snapcf_cdb1control02.ctl’.

E.

It will fail because there is no autobackup of the controlfiles.

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Question # 57

Choose three. Which three are true about actions that can or cannot be performed by users with the SYSBACKUP privilege?

A.

They can view data from any data dictionary view or dynamic performance view.

B.

They can drop any tablespace.

C.

They can view data from any user-defined tables.

D.

They can create any table.

E.

They cannot create restore points.

F.

They cannot drop tablespaces.

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Question # 58

Choose two. Which two are true about the Optimizer Statistics Advisor?

A.

It always analyzes all schemas in the database.

B.

It can recommend changes to improve the statistics gathering process.

C.

It can be run only manually.

D.

It runs automatically every night by default. E) It can be run only automatically.

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Question # 59

A container database, CDB1, contains a pluggable database PDB1. Another container database is called CDB2. You want to relocate PDB1 from CDB1 to CDB2 with near-zero down time. Which three are required?

A.

CDB2 must be in shared UNDO mode only.

B.

CDB2 must be in archivelog mode.

C.

CDB1 must be in archivelog mode.

D.

CDB1 and CDB2 must both be in local UNDO mode.

E.

CDB1 must be in shared UNDO mode only.A container database, CDB1, contains a pluggable database PDB1.

F.

CDB1 and CDB2 must be in shared UNDO mode.

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Question # 60

Examine these queries and their output: After a system crash, an instance restart and an attempted opening of the PDBs result in: Which two are true? (Choose two.)

A.

Data file 24 can be recovered while PDB2 is opened.

B.

Data file 24 must be recovered while the CDB is opened.

C.

Data file 24 can be recovered while CDB$ROOT and PDB$SEED are opened.

D.

Data file 24 cannot be recovered while the CDB is opened.

E.

Data file 24 must be recovered while PDB2 is closed.

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Question # 61

Choose three. Which three are true about Oracle pluggable databases (PDBs)?

A.

A PDB can be plugged into a CDB only if both are of the same Oracle Database release.

B.

An unplugged PDB can be plugged into multiple CDBs simultaneously by sharing data files.

C.

A PDB unplugged from a container database (CDB) can be plugged into a different CDB without altering any of its schemas.

D.

A non-CDB can be converted into a PDB.

E.

A PDB in a remote CDB can be accessed transparently thereby aggregating results from local and remote PDBs.

F.

A PDB created from PDB$SEED must be set to READ WRITE after loading data.

G.

A PDB created from PDB$SEED must be set to READ ONLY after loading data.

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Question # 62

Choose two. You are managing this configuration: 1. CDB1 is a container database. 2. PDB1 and PDB2 are two pluggable databases in CDB1. 3. USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2 . CDB1 user SYS executes these commands after connecting successfully to PDB2: SQL> ALTER SESSION SET CONTAINER=pdb1; Session altered. SQL> INSERT INTO user1.emp VALUES (100, 'Alan' ,1) ; 1 row created. SQL> INSERT INTO user1.emp VALUES (101, 'Ben' ,1) ; 1 row created. SQL> ALTER SESSION SET CONTAINER=pdb2; Session altered. SQL> INSERT INTO user2.dept VALUES(1, 'IT'); Which two are true? Which two are true? (Choose two.)

A.

The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.

B.

The inserts on USER1.EMP were committed when the session inserted a row into USER2. DEPT.

C.

The insert on USER2.DEPT fails because of the active transaction in the parent container.

D.

The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.

E.

The inserts on USER1.EMP were rolled back when the session connected to PDB2

F.

The insert on USER2.DEPT is uncommitted.

G.

The inserts on USER1.EMP were committed when the session connected to PDB2.

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Question # 63

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.

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Question # 64

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

A.

It can be created only by using RMAN.

B.

It always includes all data files, the current control file, the server parameter file, and archived redo logs.

C.

It can be consistent.

D.

It is the only possible backup type for a database in NOARCHIVELOG mode.

E.

It can consist of either backup sets or image copies.

F.

It can be inconsistent.

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Question # 65

Choose two. Your database is in ARCHIVELOG mode and you plan to use Flashback Database. Which two features or parameters manage space availability in the fast recovery area?

A.

the backup retention policy

B.

the backup optimization policy

C.

the DB_CREATE_ONLINE_LOG_DEST_n parameter setting

D.

the archived log deletion policy

E.

the DB_RECOVERY_FILE_DEST parameter setting

F.

using guaranteed UNDO retention

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Question # 66

Which three are true about Oracle Grid Infrastructure for a Standalone Server?

A.

It requires Oracle ASMLib to manage Automatic Storage Managerment (ASMl) disks.

B.

It creates one disk group during installation.

C.

It includes both Oracle Restart and Oracle Automatic Storage Management (ASM) software.

D.

Automatic Storage Management (ASM requires that ars groups OSASM and OSDBA be assigned assecondary groups for its installation owner.

E.

It requires the operating system ORACLE_BASDE environment variable to be predefined before installation.

F.

It requires Oracle ASM Filter Drver (ASMFD) to manage Automatic Storage Managemernt (AsM) disks.

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Question # 67

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?

A.

Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.

B.

Create the PDB1 application PDB and synchronize it with HR_ROOT.

C.

Create the PDB1 application PDB and install HR_APP in it.

D.

Create the PDB1 application PDB and synchronize it with PDB$SEED.

E.

Create an application seed, and install HR_APP in it.

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Question # 68

Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.)

A.

cloning a remote container database in interactive mode

B.

cloning a remote pluggable database in silent mode

C.

relocating a remote pluggable database in interactive mode

D.

relocating a remote container database in silent mode

E.

cloning a remote container database in silent mode

F.

relocating a remote pluggable database in silent mode

G.

relocating a remote container database in interactive mode.

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Question # 69

Choose two. A database is configured in ARCHIVELOG mode. A full RMAN backup exists but no control file backup to trace has been taken. A media failure has occurred. In which two scenarios is incomplete recovery required?

A.

after losing all members of the CURRENT online redo log group

B.

after losing all copies of the control file

C.

after losing an UNDO tablespace that is in use

D.

after losing all members of an INACTIVE online redo log group

E.

after losing a SYSAUX tablespace data file

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Question # 70

In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20. Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement?

A.

The movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

B.

Settingthetargettablespacetoread-only

C.

The movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

D.

Setting the target tablespace offline

E.

The movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED Correct

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Question # 71

Examine these actions: 1. Create a new database for a recovery catalog. 2. Create a tablespace with sufficient space in the catalog database for the recovery catalog. 3. Configure ARCHIVE LOG mode for the catalog database. 4. Create a user to own the recovery catalog schema with quota on the tablespace that will contain the catalog. 5. Grant the RECOVERY_CATALOG_OWNER role to the recovery catalog schema owner. 6. Grant the SYSBACKUP privilege to the recovery catalog schema owner. Which are the minimum actions that must be performed before executing the CREATE CATALOG command?

A.

2,4,5,6

B.

1,2,3,4,5,6

C.

1,2,4,5

D.

2,4,5

E.

1,3,4,5

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Question # 72

choose two Examine these RMAN commands: RMAN> CONNECT TARGET "sbu@prod AS SYSBACKUP"; RMAN> CONNECT AUXILIARY "sbu@dup_db AS SYSBACKUP"; RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE PASSWORD FILE SECTION SIZE 400M; Which two statements are true about the DUPLICATE comman

A.

It succeed

B.

It fails because no parallel channels are allocated for the auxiliary databa

C.

It fails because connection to the AUXILIARY instance must be as SYSD

D.

Itsucceeds only if the target database is greater than 40

E.

No catalogued backup of the TARGET is used to duplicate the databa

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Question # 73

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.

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Question # 74

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

A.

creating a disk group using the CREATE DISKGROUP SQL statement

B.

creating a database service using DBMS_SERVICE.CREATE_SERVICE

C.

creating a database service using Oracle Database Configuration Assistant (DBCA)

D.

creating a database using the CREATE DATABASE SQL statement

E.

creating an Oracle Database service by modifying the SERVICE_NAMES parameter

F.

creating an Oracle Automatic Storage Management (ASM) instance with ASM Configuration Assistant (ASMCA)

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Question # 75

Choose the best answer. Examine this configuration: 1. CDB1 is a container database. 2.

COMMON_USER_PREFIX is set to an empty string. 3. PDB1 is a pluggable database in CDB1. 4. APP1_ROOT is an application container in CDB1. 5. APP1_PDB1 is an application PDB in APP1_ROOT. You execute these commands: S sqlplus sys/oracle@localhost:1521/cdb1 as sysdba SQL> CREATE ROLE role1 CONTAINER=CURRENT; Which is true?

A.

It will return an error because creation of a local role is not allowed in CDB$ROOT.

B.

ROLE1 will be created only in CDB$ROOT.

C.

It will return an error because common roles must start with C##.

D.

ROLE1 will be created only in CDB$ROOT and APP1_ROOT.

E.

ROLE1 will be created in CDB$ROOT, PDB1, APP1_ROOT, and APP1_PDB1.

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Question # 76

Choose two. Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor?

A.

Data Recovery Advisor can proactively check for failures.

B.

Using the Data Recovery Advisor LIST FAILURE command always requires that the database for which failures are to be listed is in MOUNT state.

C.

ata Recovery Advisor can be used if a database is in the NOMOUNT state.

D.

A failure can be closed only if the database is in MOUNT state.

E.

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

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Question # 77

Which three statements are true about Flashback Data Archive?

A.

To use Flashback Data Archive, users must have unlimited quota on the Flashback Data Archive tablespace.

B.

To enable Flashback Data Archive for a table, it is mandatory to have a default Flashback Data Archive for a database

C.

While enabling Flashback Data Archive for a table, if no name is provided for Flashback Data Archive, it is enabled using the default Flashback Data Archive.

D.

A table enabled for Flashback Data Archive cannot be dropped unless Flashback Data Archive is disabled or disassociated first.

E.

Flashback Data Archive prevents flashback queries from getting a snapshot-too-old error.

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Question # 78

Choose three. Which three are true about Oracle Restart?

A.

It is used in both clustered and non-clustered environments.

B.

You can add and remove components from an Oracle Restart configuration with Server Control (SRVCTL) commands.

C.

It runs from the Oracle Grid Infrastructure home.

D.

If you shut down a database instance with SQL*Plus, Oracle Restart interprets this as a database failure and attempts to restart the instance.

E.

The Server Control (SRVCTL) utility can be used to start and stop Oracle Restart.

F.

It can manage Oracle Database instances, Oracle Net Listeners, and Oracle Automatic Storage Management instances.

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Question # 79

Choose two. Which two are true about the execution of operating system scripts starting from Oracle Database 19c?

A.

The root password cannot be specified in a response file.

B.

The sudo password must be specified in a response file.

C.

orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.

D.

root.sh can be executed automatically by the Database installer only if it is provided with root credentials.

E.

root.sh can be executed automatically by the Database installer only by using sudo credentials.

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Question # 80

What is the effect of specifying the "ENABLE PLUGGABLE DATABASE" clause in a "CREATE DATABASE" statement?

A.

It will create a multitenant container database (CDB) with only the root opened.

B.

ItwillcreateaCDBwithrootopenedandseedreadonly.

C.

It will create a CDB with root and seed opened and one PDB mounted.

D.

It will create a CDB that must be plugged into an existing CDB.

E.

ItwillcreateaCDBwithrootopenedandseedmounted.

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Question # 81

Choose three. Which three are true about backing up the control file?

A.

It cannot be backed up manually as a binary copy.

B.

It gets backed up automatically by RMAN as a trace file containing SQL statements for control file re¬creation when a database backup occurs.

C.

It can be backed up manually as a binary copy.

D.

It can get backed up automatically as a binary copy.

E.

It gets backed up automatically by RMAN when the BACKUP SPFILE command is used.

F.

It can be backed up manually as a trace file containing SQL statements for control file recreation.

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Question # 82

You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?

A.

Compare Period ADDM report

B.

AWR Compare Period report

C.

Active Session History (ASH) report

D.

Taking a new snapshot and comparing it with a preserved snapshot.

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Question # 83

RMAN is connected to a target database instance and an auxilary instance. You execute 3625the command: RMAN> DUPLICATE TARGET DATABASE TO dupdb FROM ACTIVE DATABASE SECTION SIZE 1G; What is the outcome?

A.

RMAN uses the pull method to restore files using image copies

B.

RMAN uses the push method to transfer image copies

C.

RMAN uses the push method to transfer backup sets

D.

RMAN uses the pull method to restore files using backup sets

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Question # 84

choose one .Examine the RMAN commands: RMAN> CONNECT TARGET "sbu@prod AS SYSBACKUP"; RMAN> CONNECT AUXILIARY "sbu@dup_db AS SYSBACKUP"; RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE PASSWORD FILE SECTION SIZE 400M; Which statement is true about the DUPLICATE command?

A.

It succeeds and creates multisection backup sets that are used for active database duplication.

B.

It fails because there is no connection to a recovery catalog.

C.

It succeeds only if the target database is in MOUNT state.

D.

It fails because no parallel channels are allocated for the auxiliary database.

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Question # 85

Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.)

A.

A target database’s persistent RMAN configuration settings are always stored in the target’s control file

B.

Backup older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.

C.

Backups written to the fast recovery area (FRA) that are oboslete based on the redundancy retention policy can be deleted automatically to free space.

D.

The RMAN SHOW ALL command displays only settings with nondefault values.

E.

A target database’s persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.

F.

The V$RMAN_CONFIGURATION view displays only settings with valuesthat have been modified. G)A DBA must specify either a redundancy retention policy or a recovery window retention policy.

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