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

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• 1You upgrade your Oracle database in a multiprocessor environment. As a recommended you execute the following script:SQL > @utlrp.sqlWhich two actions does the script perform、

  A.Parallel compilation of only the stored PL/SQL code

  B.Sequential recompilation of only the stored PL/SQL code

  C.Parallel recompilation of any stored PL/SQL code

  D.Sequential recompilation of any stored PL/SQL code

  E.Parallel recompilation of Java code

  F.Sequential recompilation of Java code

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• 2Identify two correct statements about multitenant architectures.

  A.Multitenant architecture can be deployed only in a Real Application Clusters (RAC) configuration.

  B.Multiple pluggable databases (PDBs) share certain multitenant container database (CDB) resources.

  C.Multiple CDBs share certain PDB resources.

  D.Multiple non-RAC CDB instances can mount the same PDB as long as they are on the same server.

  E.Patches are always applied at the CDB level.

  F.A PDB can have a private undo tablespace.

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• 3What are two benefits of installing Grid Infrastructure software for a stand-alone server before installing and creating an Oracle database、

  A.Effectively implements role separation

  B.Enables you to take advantage of Oracle Managed Files.

  C.Automatically registers the database with Oracle Restart.

  D.Helps you to easily upgrade the database from a prior releas

  E.E.Enables the Installation of Grid Infrastructure files on block or raw devices.

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• 4Your 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 theindexes.

  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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• 5 You must track all transactions that modify certain tables in the sales schema for at least three years.Automatic undo management is enabled for the database with a retention of one day.Which two must you do to track the transactions、

  A.Enable supplemental logging for the database.

  B.Specify undo retention guarantee for the database.

  C.Create a Flashback Data Archive in the tablespace where the tables are store

  D.D.Create a Flashback Data Archive in any suitable tablespac

  E.E.Enable Flashback Data Archiving for the tables that require tracking.

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• 6You 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.

  A.Missing or stale histogram statistics

  B.Undersized shared pool

  C.High clustering factor for the indexes

  D.High value for the DB_FILE_MULTIBLOCK_READ_COUNT parameter

  E.Oversized buffer cache

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• 7Which three features work together, to allow a SQL statement to have different cursors for the same statement based on different selectivity ranges、

  A.Bind Variable Peeking

  B.SQL Plan Baselines

  C.Adaptive Cursor Sharing

  D.Bind variable used in a SQL statement

  E.Literals in a SQL statement

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• 8You 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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• 9You want to capture column group usage and gather extended statistics for better cardinality estimates for the CUSTOMERS table in the SH schem

  A.Examine the following steps:1.Issue the SELECT DBMS_STATS.CREATE_EXTENDED_STATS (‘SH’, ‘CUSTOMERS’) FROM dual statement.2.Execute the DBMS_STATS.SEED_COL_USAGE (null, ‘SH’, 500)procedure.3. Execute the required queries on the CUSTOMERS table.4. Issue the SELECT DBMS_STATS.REPORT_COL_USAGE (‘SH’, ‘CUSTOMERS’) FROM dual statement.Identify the correct sequence of steps.A.3, 2, 1, 4

  B.2, 3, 4, 1

  C.4, 1, 3, 2

  D.3, 2, 4, 1

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• 10Which three statements are true about Automatic Workload Repository (AWR)、

  A.All AWR tables belong to the SYSTEM schema.

  B.The AWR data is stored in memory and in the database.

  C.The snapshots collected by AWR are used by the self-tuning components in the database

  D.AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.

  E.AWR contains system wide tracing and logging information.

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