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1z0-060 Practice Exam Questions with Answers Upgrade to Oracle Database 12c Certification

Question # 6

Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database.

You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted.

What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB?

A.

Place CDB1 in the mount stage and then take the USERDATA tablespace offline in ACCOUNTS_PDB.

B.

Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command.

C.

Issue the ALTER PLUGGABLE DATABASE accounts_pdb OPEN RESTRICTED command.

D.

Take the USERDATA tablespace offline in ACCOUNTS_PDB.

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Question # 7

You are administering a database stored in Automatic Storage Management (ASM). You use RMAN to back up the database and the MD_BACKUP command to back up the ASM metadata regularly. You lost an ASM disk group DG1 due to hardware failure.

In which three ways can you re-create the lost disk group and restore the data? (Choose three.)

A.

Use the MD_RESTORE command to restore metadata for an existing disk group by passing the existing disk group name as an input parameter and use RMAN to restore the data.

B.

Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group and data on the disk group.

C.

Use the MD_RESTORE command to restore the disk group with the changed disk group specification, failure group specification, name, and other attributes and use RMAN to restore the data.

D.

Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group name and same set of disks and failure group configuration, and use RMAN to restore the data.

E.

Use the MD_RESTORE command to restore both the metadata and data for the failed disk group.

F.

Use the MKDG command to add a new disk group DG1 with the same or different specifications for failure group and other attributes and use RMAN to restore the data.

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Question # 8

You install a non-RAC Oracle Database. During Installation, the Oracle Universal Installer (OUI) prompts you to enter the path of the Inventory directory and also to specify an operating system group name.

Which statement is true?

A.

The ORACLE_BASE base parameter is not set.

B.

The installation is being performed by the root user.

C.

The operating system group that is specified should have the root user as its member.

D.

The operating system group that is specified must have permission to write to the inventory directory.

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Question # 9

Examine the commands executed to monitor database operations:

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Which two statements are true? (Choose two.)

A.

Database operations will be monitored only when they consume a significant amount of resources.

B.

Database operations for all sessions will be monitored.

C.

Database operations will be monitored only if the STATISTICS_LEVEL parameter is set to TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS is set to DIAGNOSTIC+TUNING.

D.

Only DML and DDL statements will be monitored for the session.

E.

All subsequent statements in the session will be treated as one database operation and will be monitored.

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Question # 10

Which two statements are true about the use of the procedures listed in the v$sysaux_occupants.move_procedure column? (Choose two.)

A.

The procedures may be used for some components to relocate component data to the SYSAUX tablespace from its current tablespace.

B.

The procedures may be used for some components to relocate component data from the SYSAUX tablespace to another tablespace.

C.

All the components may be moved into the SYSAUX tablespace.

D.

All the components may be moved from the SYSAUX tablespace.

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Question # 11

Examine the following commands for redefining a table with Virtual Private Database (VPD) policies:

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Which two statements are true about redefining the table? (Choose two.)

A.

All the triggers for the table are disabled without changing any of the column names or column types in the table.

B.

The primary key constraint on the EMPLOYEES table is disabled during redefinition.

C.

VPD policies are copied from the original table to the new table during online redefinition.

D.

You must copy the VPD policies manually from the original table to the new table during online redefinition.

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Question # 12

In your multitenant container database (CDB) that contains pluggable databases (PDBs), the HR user executes the following commands to create and grant privileges on a procedure:

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How can you prevent users having the EXECUTE privilege on the CREATE_TEST procedure from inserting values into tables on which they do not have any privileges?

A.

Create the CREATE_TEST procedure with definer’s rights.

B.

Grant the EXECUTE privilege to users with GRANT OPTION on the CREATE_TEST procedure.

C.

Create the CREATE_TEST procedure with invoker’s rights.

D.

Create the CREATE_TEST procedure as part of a package and grant users the EXECUTE privilege the package.

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Question # 13

You Execute the following command to create a password file in the database server:

$ orapwd file=‘+DATA/PROD/orapwprod entries=5 ignorecase=N format=12’

Which two statements are true about the password file? (Choose two.)

A.

It records the usernames and passwords of users when granted the DBA role.

B.

It contains the usernames and passwords of users for whom auditing is enabled.

C.

It is used by Oracle to authenticate users for remote database administration.

D.

It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.

E.

It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.

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Question # 14

Your multitenant container database (CDB) contains pluggable databases (PDBs), you are connected to the PDB HR_PDB. You execute the following command:

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What is the result?

A.

It executes successfully and creates an UNDO tablespace in HR_PDB.

B.

It fails and reports an error because there can be only one UNDO tablespace in a CDB.

C.

It fails and reports an error because the CONTAINER=ALL clause is not specified in the command.

D.

It fails and reports an error because the CONTAINER=CURRENT clause is not specified in the command.

E.

It executes successfully but neither tablespace nor the data file is created.

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Question # 15

You plan to use the In-Database Archiving feature of Oracle Database 12c, and store rows that are inactive for over three months, in Hybrid Columnar Compressed (HCC) format.

Which three storage options support the use of HCC? (Choose three.)

A.

ASM disk groups with ASM disks consisting of Exadata Grid Disks.

B.

ASM disk groups with ASM disks consisting of LUNs on any Storage Area Network array

C.

ASM disk groups with ASM disks consisting of any zero-padded NFS-mounted files

D.

Database files stored in ZFS and accessed using conventional NFS mounts.

E.

Database files stored in ZFS and accessed using the Oracle Direct NFS feature

F.

Database files stored in any file system and accessed using the Oracle Direct NFS feature

G.

ASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage arrays

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Question # 16

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? (Choose two.)

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.

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

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 to read-only after the segments are moved

E.

Taking the target tablespace offline after the segments are moved

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Question # 17

In which two scenarios is an RMAN recovery catalog automatically resynchronized?

A.

when a registered database is opened with the resetlogs option

B.

when the backup retention policy configuration is changed for a registered database

C.

when a redo log Is archived

D.

when a manual redo log switch is performed

E.

when backup metadata records are aged out of the control file based on the control_file_record_keep_time parameter value

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Question # 18

Your multitenant container database (CDB) is running in archivelog mode. Fxamlne this command and its output:

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You issue this command in RMAN:

RMAN>BACKUP PLUGGABLE DATABASE "CDBSROOT", pdb2_l;

What is the outcome?

A.

The backup succeeds and all the data files belonging to both the root container and pdb2_i are backed up.

B.

The backup falls because the root container cannot be backed up with pdb2_i.

C.

The backup succeeds, but only the system and sysaux tablespaces in the root container are backed up along with all the data files in pdb2_i.

D.

The backup fails because pdb2_1 should be placed in the mount stage.

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Question # 19

You are the DBA supporting an Oracle 11g Release 2 database and wish to move a table containing several DATE, CHAR, VARCHAR2, and NUMBER data types, and the table’s indexes, to another tablespace.

The table does not have a primary key and is used by an OLTP application.

Which technique will move the table and indexes while maintaining the highest level of availability to the application?

A.

Oracle Data Pump

B.

An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD to move the indexes.

C.

An ALTER TABLE MOVE to move the table and ALTER INDEX REBUILD ONLINE to move the indexes

D.

Online Table Redefinition

E.

Edition-Based Table Redefinition

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Question # 20

Your multitenant container database (CDB) contains some pluggable databases (PDBs), you execute the following command in the root container:

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Which two statements are true? (Choose two.)

A.

Schema objects owned by the C# # A_ADMIN common user can be shared across all PDBs.

B.

The C##A_ADMIN user will be able to use the TEMP_TS temporary tablespace only in root.

C.

The command will create a common user whose description is contained in the root and each PDB.

D.

The schema for the common user C # # A_ADMIN can be different in each container.

E.

The command will create a user in the root container only because the CONTAINER clause is not used.

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Question # 21

You are administering a database stored in Automatic Storage Management (ASM). You use RMAN to back up the database and the MD_BACKUP command to back up the ASM metadata regularly. You lost an ASM disk group DG1 due to hardware failure.

In which three ways can you re-create the lost disk group and restore the data? (Choose three.)

A.

Use the MD_RESTORE command to restore metadata for an existing disk group by passing the existing disk group name as input parameter and use RMAN to restore the data.

B.

Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group and data on the disk group.

C.

Use the MD_RESTORE command to restore the disk group with the changed disk group specification, failure group specification, name, and other attributes and use RMAN to restore the data.

D.

Use the MD_RESTORE command to restore both the metadata and data for the failed disk group.

E.

Use the MKDG command to add a new disk group DG1 with the same or different specifications for failure group and other attributes and use RMAN to restore the data.

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Question # 22

An Automatic Database Diagnostic Monitor (ADDM) finding in your production database reports that the shared pool is inadequately sized. You diagnose that this is due to the different kinds of workloads and this occurs only during peak hours. The following are the parameter settings for the database instance:

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You want to balance the memory between the System Global Area (SGA) components depending on the workload.

Which option would solve this problem?

A.

setting the PGA_AGGREGATE_TARGET parameter to 200M and the SGA_MAX_SIZE parameter to 400M

B.

setting the MEMORY_TARGET and SGA_MAX_SIZE parameters to 400M

C.

setting the SGA_TARGET parameter to 300M

D.

setting the SGA_MAX_SIZE parameter to 400M

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Question # 23

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;

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SQL> SELECT ENAME, SAL, COMM, MGR, HIREDATE FROM EMP WHERE DEPTNO=30;

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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 # 24

You plan to use the Flashback Drop feature to recover the sales_emp table that was dropped in error. No other table with the same name exists in the sh schema, which owns the table. You query the recyclebin and find multiple entries for the salesemp table:

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SQL FLASHBACK TABLE sale_emp To BEFORE DROP:

What would be the result?

A.

It returns an error because the table name in the object_name column is not specified.

B.

It retrieves the least recently dropped version of the table from the recycle bin for which undo is still available.

C.

It retrieves the most recently dropped version of the table.

D.

It retrieves the most recently dropped version of the table from the recycle bin for which undo Is still available.

E.

It retrieves the least recently dropped version of the table.

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Question # 25

You notice that the elapsed time for an important database scheduler job is unacceptably long.

The job belongs to a scheduler job class and runs in a scheduler window.

Which two actions could reduce the job's elapsed time? (Choose two.)

A.

increasing the job's relative priority within the job class to which it belongs

B.

increasing the priority of the scheduler window to which the job belongs

C.

increasing resource allocation for the consumer group mapped to the job class in the resource manager plan associated with the scheduler window

D.

moving the job to an existing higher priority scheduler window with the same schedule and duration

E.

increasing the value of the JOB_QUEUE_PROCESSES parameter

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Question # 26

Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR) report:

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What are three possible causes for the latch-related wait events? (Choose three.)

A.

The size of the shared pool is too small.

B.

Cursors are not being shared.

C.

A large number COMMITS are being performed.

D.

There are frequent logons and logoffs.

E.

The buffers are being read into the buffer cache, but some other session is changing the buffers.

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Question # 27

Which two statements are true about Oracle Managed Files (OMF)? (Choose two.)

A.

OMF cannot be used in a database that already has data files created with user-specified directions.

B.

The file system directions that are specified by OMF parameters are created automatically.

C.

OMF can be used with ASM disk groups, as well as with raw devices, for better file management.

D.

OMF automatically creates unique file names for table spaces and control files.

E.

OMF may affect the location of the redo log files and archived log files.

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Question # 28

You plan to drop the column of a table that has Flashback Archiving enabled.

You want to ensure minimal service disruption.

How would you do this in your Oracle 12c Database?

A.

Disable Flashback Archiving, set the column unused, and re-enable Flashback Archiving.

B.

Disable Flashback Archiving, drop the column unused, and re-enable Flashback Archiving.

C.

Disassociate the Flashback Archive using the DBMS_FLASHBACK_ARCHIVE.DISASSOCIATE_FBA procedure, drop the column, and re-associate the Flashback Archive using the DBMS_FLASHBACK_ARCHIVE.RESASSOCIATE_FBA procedure.

D.

Drop the column using the ALTER TABLE statement.

E.

Disassociate the Flashback Archive using the DBMS_FLASHBACK_ARCHIVE.DISASSOCIATE_FBA procedure, set the column unused, and re-associate the Flashback Archive using the DBMS_FLASHBACK_ARCHIVE.RESASSOCIATE_FBA procedure.

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Question # 29

Which two statements are true concerning the Resource Manager plans for individual pluggable databases (PDB plans) in a multitenant container database (CDB)? (Choose two.)

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.

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Question # 30

You notice that the elapsed time for an important database scheduler job is unacceptably long.

The job belongs to a scheduler job class and runs in a scheduler window.

Which two actions could reduce the job's elapsed time? (Choose two.)

A.

increasing the priority of the job class to which the job belongs

B.

increasing the job's relative priority within the job class to which it belongs

C.

increasing resource allocation for the consumer group mapped to the job class in the resource manager plan associated with the scheduler window

D.

moving the job to an existing higher priority scheduler window with the same schedule and duration

E.

increasing the value of the JOB_QUEUE_PROCESSES parameter

F.

increasing the priority of the scheduler window to which the job belongs

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Question # 31

Which three statements are true about adaptive SQL plan management? (Choose three.)

A.

It adds new, better plans automatically as fixed plans to the baseline.

B.

The non-accepted plans are automatically accepted and become usable by the optimizer if they perform better than the existing accepted plans.

C.

It automatically performs verification or evolves non-accepted plans, in COMPREHENSIVE mode when they perform better than existing accepted plans.

D.

The non-accepted plans in a SQL plan baseline are automatically evolved, in COMPREHENSIVE mode, during the nightly maintenance window and a persistent verification report is generated.

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