Flashback is enabled for your multitenant container database (CDB), which contains two pluggable database (PDBs). A local user was accidently dropped from one of the PDBs.You want to flash back the PDB to the time before the local user was dropped. You connect to the CDB and execute the following commands:SQL > SHUTDOWN IMMEDIATESQL > STARTUP MOUNTSQL > FLASHBACK DATABASE to TIME “TO_DATE (‘08/20/12’ , ‘MM/DD/YY’)”;Examine following commands:1. ALTER PLUGGABLE DATABASE ALL OPEN;2. ALTER DATABASE OPEN;3. ALTER DATABASE OPEN RESETLOGS;Which command or commands should you execute next to allow updates to the flashback back schema、

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• 1The persistent configuration settings for RMAN have default for all parameters.Identify four RMAN commands that produce a multi-section backup.

  A.BACKUP TABLESPACE SYSTEM SECTION SIZE 100M;

  B.BACKUP AS COPY TABLESPACE SYSTEM SECTION SIZE 100M;

  C.BACKUP ARCHIVELOG ALL SECTION SIZE 25M;

  D.BACKUP TABLESPACE "TEMP" SECTION SIZE 10M;

  E.BACKUP TABLESPACE "UNDO" INCLUDE CURRENT CONTROLFILE SECTION SIZE 100M;

  G.BACKUP SPFILE SECTION SIZE 1M;

  H.A.BACKUP TABLESPACE SYSTEM SECTION SIZE 100M;B.BACKUP AS COPY TABLESPACE SYSTEM SECTION SIZE 100M;C.BACKUP ARCHIVELOG ALL SECTION SIZE 25M;D.BACKUP TABLESPACE "TEMP" SECTION SIZE 10M;E.BACKUP TABLESPACE "UNDO" INCLUDE CURRENT CONTROLFILE SECTION SIZE 100M;F.BACKUP SPFILE SECTION SIZE 1M;G.BACKUP INCREMENTAL LEVEL 0 TABLESPACE SYSAUX SECTION SIZE 100M;

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• 2You have altered a non-unique index to be invisible to determine if queries execute within an acceptable response time without using this index.Which two are possible if table updates are performed which affect the invisible index columns、

  A.The index remains invisible.

  B.The index is not updated by the DML statements on the indexed table.

  C.The index automatically becomes visible in order to have it updated by DML on the table.

  D.The index becomes unusable but the table is updated by the DML.

  E.The index is updated by the DML on the table.

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• 3You use the segment advisor to help determine objects for which space may be reclaimed.Which three statements are true about the advisor given by the segment advisor、

  A.It may advise the use of online table redefinition for tables in dictionary managed tablespace.

  B.It may advise the use of segment shrink for tables in dictionary managed tablespaces it the no chained rows.

  C.It may advise the use of online table redefinition for tables in locally managed tablespaces

  D.It will detect and advise about chained rows.

  E.It may advise the use of segment shrink for free list managed tables.

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• 4A warehouse fact table in your Oracle 12c Database is range-partitioned by month andaccessed frequently with queries that span multiple partitionsThe table has a local prefixed, range partitioned index.Some of these queries access very few rows in some partitions and all the rows in other partitions, but these queries still perform a full scan for all accessed partitions.This commonly occurs when the range of dates begins at the end of a month or ends close to the start of a month.You want an execution plan to be generated that uses indexed access when only a few rows are accessed from a segment, while still allowing full scans for segments where many rows are returned.Which three methods could transparently help to achieve this result、

  A.Using a partial local Index on the warehouse fact table month column with indexing disabled to the table partitions that return most of their rows to the queries.

  B.Using a partial local Index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.

  C.Using a partitioned view that does a UNION ALL query on the partitions of the warehouse fact table, which retains the existing local partitioned column.

  D.Converting the partitioned table to a partitioned view that does a UNION ALL query onthe monthly tables, which retains the existing local partitioned column.

  E.Using a partial global index on the warehouse fact table month column with indexing disabling for the table partitions that return most of their rows to the queries.

  F.Using a partial global index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.

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• 5Which two statements are true when row archival management is enabled、

  A.The ORA_ARCHIVE_STATE column visibility is controlled by the ROW ARCHIVAL VISIBILITY session parameter.

  B.The ORA_ARCHIVE_STATE column is updated manually or by a program that could reference activity tracking columns, to indicate that a row is no longer considered active.

  C.The ROW ARCHIVAL VISIBILITY session parameter defaults to active rows only.

  D.The ORA_ARCHIVE_STATE column is visible if referenced in the select list of a query.

  E.The ORA_ARCHIVE_STATE column is updated automatically by the Oracle Serverbased on activity tracking columns, to Indicate that a row is no longer considered active.

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• 6Examine the commands executed to monitor database operations:$> conn sys oracle/oracle@prod as sysdbaSQL > VAR eid NUMBERSQL > EXEC: eid := DBMS_SQL_MONITOR.BEGIN_OPERATION (‘batch_job’ , FORCED_TRACKING => ‘Y’);Which two statements are true、

  A.Database operations will be monitored only when they consume a significant amount ofresource.

  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 DIAGNISTIC + TUNING.

  D.C.Database operations will be monitored only if the STATISTICS_LEVEL parameter is set to TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS is set DIAGNISTIC + 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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• 7Which three statements are true about the working of system privileges in a multitenant control database (CDB) that has pluggable databases (PDBs)、

  A.System privileges apply only to the PDB in which they are used.

  B.Local users cannot use local system privileges on the schema of a common user.

  C.The granter of system privileges must possess the set container privilege.

  D.B.Local users cannot use local system privileges on the schema of a common user.C.The granter of system privileges must possess the set container privileg

  E.D.Common users connected to a PDB can exercise privileges across other PDBs.E.System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users.

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• 8You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB) as a pluggable database (PDB).The characteristics of the non-CDB are as follows:、 Version: Oracle Database 12c Releases 1 64-bit、 Character set: WE8ISO8859P15、 National character set: AL16UTF16、 O/S: Oracle Linux 6 64-bitThe characteristics of the CDB are as follows:、 Version: Oracle Database 12c Release 1 64-bit、 Character set: AL32UTF8、 O/S: Oracle Linux 6 64-bitWhich technique should you use to minimize down time while plugging this non-CDB into the CDB、

  A.Transportable database

  B.Transportable tablespace

  C.Data Pump full export / import

  D.The DBMS_PDB package

  E.RMAN

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• 9Your database has the SRV1 service configured for an application that runs on middle-tier  application server. The application has multiple modules. You enable tracing at the service level by executing the following command:SQL > exec DBMS_MONITOR.SERV_MOD_ACT_TRACE_ENABLE (‘SRV1’);The possible outcome and actions to aggregate the trace files are as follows:1. The command fails because a module name is not specified.2. A trace file is created for each session that is running the SRV1 service.3. An aggregated trace file is created for all the sessions that are running the SRV1 service.4. The trace files may be aggregated by using the trcess utility.5. The trace files be aggregated by using the tkprof utility.Identify the correct outcome and the step to aggregate by using tkprof utility、

  A.1

  B.2 and 4

  C.2 and 5

  D.3 and 4

  E.3 and 5

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• 10Your multitenant container database (CDB) contains pluggable databases (PDBs), you are connected to the HR_PDB. You execute the following command:SQL > CREATE UNDO TABLESPACE undotb01DATAFILE ‘u01/oracle/rddb1/undotbs01.dbf’ SIZE 60M AUTOEXTEND ON;What is the result、

  A.It executes successfully and creates an UNDO tablespace in HR_PD

  B.B.It falls 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 comman

  D.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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