Which two partitioned table maintenance operations support asynchronous Global Index Maintenance in Oracle database 12c、

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• 1Which three tasks can be automatically performed by the Automatic Data Optimization feature of Information lifecycle Management (ILM)、

  A.Tracking the most recent read time for a table segment in a user tablespace

  B.Tracking the most recent write time for a table segment in a user tablespace

  C.Tracking insert time by row for table rows

  D.Tracking the most recent write time for a table block

  E.Tracking the most recent read time for a table segment in the SYSAUX tablespace

  F.Tracking the most recent write time for a table segment in the SYSAUX tablespace

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• 2A senior DBA asked you to execute the following command to improve performance:SQL> ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle);You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows.What could be a reason for this recommendation、

  A.The keep pool is not configured.

  B.Automatic Workarea Management is not configured.

  C.Automatic Shared Memory Management is not enable

  D.B.Automatic Workarea Management is not configured.C.Automatic Shared Memory Management is not enabled.D.The data blocks in the SUBSCRIBE_LOG table are rarely accessed.

  E.All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view.

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• 3You are administering a database and you receive a requirement to apply the following restrictions:1. A connection must be terminated after four unsuccessful login attempts by user.2. A user should not be able to create more than four simultaneous sessions.3. User session must be terminated after 15 minutes of inactivity.4. Users must be prompted to change their passwords every 15 days.How would you accomplish these requirements、

  A.by granting a secure application role to the users

  B.by creating and assigning a profile to the users and setting theREMOTE_OS_AUTHENT parameter to FALSE

  C.By creating and assigning a profile to the users and setting theSEC_MAX_FAILED_LOGIN_ATTEMPTS parameter to 4

  D.By Implementing Fine-Grained Auditing (FGA) and setting theREMOTE_LOGIN_PASSWORD_FILE parameter to NON

  E.E.By implementing the database resource Manager plan and setting theSEC_MAX_FAILED_LOGIN_ATTEMPTS parameters to 4.

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• 4You administer an online transaction processing (OLTP) system whose database is stored in Automatic Storage Management (ASM) and whose disk group use normal redundancy.One of the ASM disks goes offline, and is then dropped because it was not brought online before DISK_REPAIR_TIME elapsed.When the disk is replaced and added back to the disk group, the ensuing rebalance operation is too slow.Which two recommendations should you make to speed up the rebalance operation if this type of failure happens again、

  A.Increase the value of the ASM_POWER_LIMIT parameter.

  B.Set the DISK_REPAIR_TIME disk attribute to a lower value.

  C.Specify the statement that adds the disk back to the disk group.

  D.Increase the number of ASMB processes.

  E.Increase the number of DBWR_IO_SLAVES in the ASM instance.

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• 5Identify three valid methods of opening, pluggable databases (PDBs).

  A.ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from the root

  B.ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from a PDB

  C.ALTER PLUGGABLE DATABASE PDB OPEN issued from the seed

  D.ALTER DATABASE PDB OPEN issued from the root

  E.ALTER DATABASE OPEN issued from that PDB

  G.ALTER PLUGGABLE DATABASE PDB OPEN issued from another PDB

  H.A.ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from the rootB.ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from a PDBC.ALTER PLUGGABLE DATABASE PDB OPEN issued from the seedD.ALTER DATABASE PDB OPEN issued from the rootE.ALTER DATABASE OPEN issued from that PDBF.ALTER PLUGGABLE DATABASE PDB OPEN issued from another PDBG.ALTER PLUGGABLE DATABASE OPEN issued from that PDB

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• 6You configure your database Instance to support shared server connections.Which two memory areas that are part of PGA are stored in SGA instead, for shared server connection、

  A.User session data

  B.Stack space

  C.Private SQL area

  D.Location of the runtime area for DML and DDL Statements

  E.Location of a part of the runtime area for SELECT statements

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• 7Which two statements are true about Oracle Managed Files (OMF)、

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

  B.The filesystem 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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• 8Which three actions are possible during an Online Data file Move operation、

  A.Creating and dropping tables in the data file being moved

  B.Performing file shrink of the data file being moved

  C.Querying tables in the data file being moved

  D.Performing Block Media Recovery for a data block in the data file being moved

  E.Flashing back the database

  F.Executing DML statements on objects stored in the data file being moved

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• 9Your multitenant container database (CDB) contains a pluggable database, HR_PDB. The   default permanent tablespace in HR_PDB is USERDAT

  A.The container database (CDB) is open and you connect RMAN.You want to issue the following RMAN command:RMAN > BACKUP TABLESPACE hr_pdb:userdata;Which task should you perform before issuing the command、A.Place the root container in ARHCHIVELOG mode.

  B.Take the user data tablespace offline.

  C.Place the root container in the nomount stage.

  D.Ensure that HR_PDB is open.

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• 10Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyze impact on the performance of SQL statements.

  A.Change in the Oracle Database version

  B.Change in your network infrastructure

  C.Change in the hardware configuration of the database server

  D.Migration of database storage from non-ASM to ASM storage

  E.Database and operating system upgrade

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