1Z0-060 Exam Questions and Answers | Exam-Dumps (Page: 9)

QUESTION: 41

What are two benefits of installing Grid Infrastructure software for a stand-alone server before installing and creating an Oracle database? (Choose two.)

Effectively implements role separation
Enables you to take advantage of Oracle Managed Files.
Automatically registers the database with Oracle Restart.
Helps you to easily upgrade the database from a prior release.
Enables the Installation of Grid Infrastructure files on block or raw devices.

Answer(s): C,E

Explanation:

“Oracle Grid Infrastructure for a standalone server includes Oracle Restart and Oracle Automatic Storage Management. Oracle combined the two infrastructure products into a single set of binaries that is installed into an Oracle Restart home.”

Reference:

http://docs.oracle.com/cd/E16655_01/install.121/e17735/oraclerestart.htm#NTDBI999

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QUESTION: 42

Identify two correct statements about multitenant architecture. (Choose two.)

Multitenant architecture can be deployed only in a Real Application Clusters (RAC) configuration.
Multiple pluggable databases (PDBs) share the SGA of a multitenant container database (CDB).
Multiple CDBs share certain PDB resources.
Multiple non-RAC CDB instances can mount the same PDB as long as they are on the same server.
Patches are always applied at the CDB level.
A PDB can have a private undo tablespace.

Answer(s): B,E

Explanation:

B: Using 12c Resource manager you will be able control CPU, Exadata I/O, sessions and parallel servers. A new 12c CDB Resource Manager Plan will use so-called “Shares” (resource allocations) to specify how CPU is distributed between PDBs. A CDB Resource Manager Plan also can use “utilization limits” to limit the CPU usage for a PDB. With a default directive, you do not need to modify the resource plan for each PDB plug and unplug.

E: New paradigms for rapid patching and upgrades.
The investment of time and effort to patch one multitenant container database results in patching all of its many pluggable databases. To patch a single pluggable database, you simply unplug/plug to a multitenant container database at a different Oracle Database software version.

Incorrect Answers:
A:
* The Oracle RAC documentation describes special considerations for a CDB in an Oracle RAC environment.
* Oracle Multitenant is a new option for Oracle Database 12c Enterprise Edition that helps customers reduce IT costs by simplifying consolidation, provisioning, upgrades, and more. It is supported by a new architecture that allows a container database to hold many pluggable databases. And it fully complements other options, including Oracle Real Application Clusters and Oracle Active Data Guard. An existing database can be simply adopted, with no change, as a pluggable database; and no changes are needed in the other tiers of the application.

D: You can unplug a PDB from one CDB and plug it into a different CDB without altering your schemas or applications. A PDB can be plugged into only one CDB at a time.

F:
* UNDO tablespace can NOT be local and stays on the CDB level.
* Redo and undo go hand in hand, and so the CDB as a whole has a single undo tablespace per RAC instance.

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QUESTION: 43

You upgrade your Oracle database in a multiprocessor environment. As a recommended best practice, you execute the following script:

SQL > @utlrp.sql

Which two actions does the script perform? (Choose two.)

Parallel compilation of only the stored PL/SQL code
Sequential recompilation of only the stored PL/SQL code
Parallel recompilation of any stored PL/SQL code
Sequential recompilation of any stored PL/SQL code
Parallel recompilation of Java code
Sequential recompilation of Java code

Answer(s): C,E

Explanation:

utlrp.sql and utlprp.sql

The utlrp.sql and utlprp.sql scripts are provided by Oracle to recompile all invalid objects in the database. They are typically run after major database changes such as upgrades or patches. They are located in the
$ORACLE_HOME/rdbms/admin directory and provide a wrapper on the UTL_RECOMP package. The utlrp.sql script simply calls the utlprp.sql script with a command line parameter of "0". The utlprp.sql accepts a single integer parameter that indicates the level of parallelism as follows.

0 - The level of parallelism is derived based on the CPU_COUNT parameter. 1 - The recompilation is run serially, one object at a time.
N - The recompilation is run in parallel with "N" number of threads.
Both scripts must be run as the SYS user, or another user with SYSDBA, to work correctly.

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QUESTION: 44

Which statement is true concerning dropping a pluggable database (PDB)?

The PDB must be open in read-only mode.
The PDB must be in mount state.
The PDB must be unplugged.
The PDB data files are always removed from disk.
A dropped PDB can never be plugged back into a multitenant container database (CDB).

Answer(s): B

Explanation:

http://docs.oracle.com/database/121/ADMIN/cdb_plug.htm#ADMIN13658

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QUESTION: 45

You notice a high number of waits for the db file scattered read and db file sequential read events in the recent Automatic Database Diagnostic Monitor (ADDM) report. After further investigation, you find that queries are performing too many full table scans and indexes are not being used even though the filter columns are indexed.

Identify three possible reasons for this.

Missing or stale histogram statistics
Undersized shared pool
High clustering factor for the indexes
High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameter
Oversized buffer cache

Answer(s): A,C,D

Explanation:

D: DB_FILE_MULTIBLOCK_READ_COUNT is one of the parameters you can use to minimize I/O during table scans. It specifies the maximum number of blocks read in one I/O operation during a sequential scan. The total number of I/Os needed to perform a full table scan depends on such factors as the size of the table, the multiblock read count, and whether parallel execution is being utilized for the operation.

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Oracle 1Z0-060 Exam (page: 9) Oracle Upgrade to Database 12c Updated on: 28-Nov-2025

QUESTION: 41

Explanation:

Reference:

QUESTION: 42

Explanation:

QUESTION: 43

Explanation:

QUESTION: 44

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QUESTION: 45

Explanation:

Oracle 1Z0-060 Exam (page: 9)
Oracle Upgrade to Database 12c
Updated on: 28-Nov-2025