Which three activities are supported by the Data Recovery Advisor、

试卷相关题目

• 1What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archiving enabled、

  A.It fails with the ORA-665610 Invalid DDL statement on history-tracked message

  B.The rows in the table are truncated without being archived.

  C.The rows in the table are archived, and then truncate

  D.D.The rows in both the table and the archive are truncated.

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• 2You enabled an audit policy by issuing the following statements:SQL> AUDIT POLICY ORA_DATABASE_PARAMETER BY SCOTT;SQL> AUDIT POLICY ORA_DATABASE_PARAMETER BY SYS, SYSTEM;For which database users and for which executions is the audit policy now active、 Select two.

  A.SYS, SYSTEM

  B.SCOTT

  C.Only for successful executions

  D.Only for failed executions

  E.Both successful and failed executions

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• 3Which three operations can be performed as multipartition operations in Oracle、

  A.Merge partitions of a list partitioned table

  B.Drop partitions of a list partitioned table

  C.Coalesce partitions of a hash-partitioned global index.

  D.Move partitions of a range-partitioned table

  E.Rename partitions of a range partitioned table

  F.Merge partitions of a reference partitioned index

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• 4Which three statements are true when the listener handles connection requests to an Oracle 12c database instance with multithreaded architecture enabled In UNIX、

  A.Thread creation must be routed through a dispatcher process

  B.The local listener may spawn a now process and have that new process create a thread

  C.Each Oracle process runs an SCMN threa

  D.D.Each multithreaded Oracle process has an SCMN thread.

  E.The local listener may pass the request to an existing process which in turn will create a thread.

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• 5Which two statements are true about the Oracle Direct Network File system (DNFS)、

  A.It utilizes the OS filesystem cache.

  B.A traditional NFS mount is not required when using Direct NFS.

  C.Oracle Disk Manager can manage NFS on its own, without using the operating kernel NFS driver.

  D.Direct NFS is available only in UNIX platforms.

  E.Direct NFS can load-balance I/O traffic across multiple network adapters.

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• 6Which three statements are true regarding the use of the Database Migration Assistant for Unicode (DMU)、

  A.A DBA can check specific tables with the DMU

  B.The database to be migrated must be opened read-only.

  C.The release of the database to be converted can be any release since 9.2.0.8.

  D.The DMU can report columns that are too long in the converted characterset.

  E.The DMU can report columns that are not represented in the converted characterset.

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• 7Oracle Grid Infrastructure for a stand-alone server is installed on your production hostbefore installing the Oracle Database server. The database and listener are configured by using Oracle Restart.Examine the following command and its output:$ crsctl config hasCRS-4622: Oracle High Availability Services auto start is enabled.What does this imply、

  A.When you start an instance on a high with SQL *Plus dependent listeners and ASM disk groups are automatically started.

  B.When a database instance is started by using the SRVCTL utility and listener startup fails, the instance is still started.

  C.When a database is created by using SQL* Plus, it is automatically added to the Oracle Restart configuration.

  D.When you create a database service by modifying the SERVICE_NAMES initialization parameter, it is automatically added to the Oracle Restart configuration.

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• 8You performed an incremental level 0 backup of a database:RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE;To enable block change tracking after the incremental level 0 backup, you issued this command:SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE‘ /mydir/rman_change_track.f’;To perform an incremental level 1 cumulative backup, you issued this command:RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which three statements are true、

  A.Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.

  B.The change tracking file must always be backed up when you perform a full database backup.

  C.Block change tracking will always reduce I/O performed during cumulative incremental backups.

  D.More than one database block may be read by an incremental backup for a change made to a single block.

  E.The incremental level 1 backup that immediately follows the enabling of block change tracking will not read the change tracking file to discover changed blocks.

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• 9Which three resources might be prioritized between competing pluggable databases whencreating a multitenant container database plan (CDB plan) using Oracle Database Resource Manager、

  A.Maximum Undo per consumer group

  B.Maximum Idle time

  C.Parallel server limit

  D.CPU

  E.Exadata I/O

  F.Local filesystem I/O

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• 10On your Oracle Database, you issue the following commands to create indexes:SQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customer_id, sales_rep_id) INVISIBLE;SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customer_id, sales_rep_id);Which two statements are true、

  A.Only the ORD_CUSTOMER_IX1 index created.

  B.Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS table.

  C.Both the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table.

  D.B.Both the indexes are updated when a row is inserted, updated, or deleted in the ORDERS tabl

  E.C.Both the indexes are created: however, only ORD_CUSTOMERS_IX1 is used by the optimizer for queries on the ORDERS table.D.The ORD_CUSTOMER_IX1 index is not used by the optimizer even when theOPTIMIZER_USE_INVISIBLE_INDEXES parameters is set to true.E.Both the indexes are created and used by the optimizer for queries on the ORDERS table.

  F.Both the indexes are created: however, only ORD_CUSTOMERS_IX2 is used by the optimizer for queries on the ORDERS table.

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