Which statement is true about Enterprise Manager (EM) express in Oracle Database 12c、

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• 1Which three statements are true about Flashback Database、

  A.Flashback logs are written sequentially, and are archived.

  B.Flashback Database uses a restored control file to recover a database.

  C.The Oracle database automatically creates, deletes, and resides flashback logs in the Fast Recovery Area.

  D.B.Flashback Database uses a restored control file to recover a databas

  E.C.The Oracle database automatically creates, deletes, and resides flashback logs in the Fast Recovery Area.D.Flashback Database can recover a database to the state that it was in before a reset logs operation.E.Flashback Database can recover a data file that was dropped during the span of time of the flashback.

  F.Flashback logs are used to restore to the blocks' before images, and then the redo data may be used to roll forward to the desired flashback time.

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• 2In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20.Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement、

  A.The movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

  B.Setting the target tablespace to read-only

  C.The movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

  D.Setting the target tablespace offline

  E.The movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

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• 3Which three statements are true about Oracle Data Pump export and import operations、

  A.You can detach from a data pump export job and reattach later.

  B.Data pump uses parallel execution server processes to implement parallel import.

  C.Data pump import requires the import file to be in a directory owned by the oracle owner.

  D.The master table is the last object to be exported by the data pump.

  E.You can detach from a data pump import job and reattach later.

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• 4Identify two situations in which the alert log file is updated.

  A.Running a query on a table returns ORA-600: Internal Error.

  B.Inserting a value into a table returns ORA-01722: invalid number.

  C.Creating a table returns ORA-00955: name us already in used by an existing objects.

  D.Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.

  E.Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block corrupted (file # 14, block # 50) error.

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• 5You Execute the Following command to create a password file in the database server:$ orapwd file = ‘+DATA/PROD/orapwprod entries = 5 ignorecase = N format = 12’Which two statements are true about the password file、

  A.It records the usernames and passwords of users when granted the DBA role.

  B.It contains the usernames and passwords of users for whom auditing is enabled.

  C.Is used by Oracle to authenticate users for remote database administration.

  D.C.Is used by Oracle to authenticate users for remote database administration.D.It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.

  E.It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.

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• 6Examine the following command;ALTER SYSTEM SET enable_ddl_logging = TRUE;Which statement is true、

  A.Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file.

  B.All DDL commands are logged in the alert log file.

  C.All DDL commands are logged in a different log file that contains DDL statements and their execution dates.

  D.Only DDL commands that resulted in the creation of new segments are logged.

  E.All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

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• 7In which two scenarios do you use SQL* Loader to load data、

  A.Transform the data while it is being loaded into the database.

  B.Use transparent parallel processing without having to split the external data first.

  C.Load data into multiple tables during the same load statement.

  D.Generate unique sequential key values in specified columns.

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• 8You are connected to a pluggable database (PDB) as a common user with DBA privileges.The STATISTICS_LEVEL parameter is PDB_MODIFIABLE. You execute the following:SQL > ALTER SYSTEM SET STATISTICS_LEVEL = ALL SID = ‘*’ SCOPE = SPFILE;Which is true about the result of this command、

  A.The STATISTICS_LEVEL parameter is set to all whenever this PDB is re-opened.

  B.The STATISTICS_LEVEL parameter is set to ALL whenever any PDB is reopened.

  C.The STATISTICS_LEVEL parameter is set to all whenever the multitenant containerdatabase (CDB) is restarte

  D.D.Nothing happens; because there is no SPFILE for each PDB, the statement is ignored.

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• 9Which two are prerequisites for performing a flashback transaction、

  A.Flashback Database must be enabled.

  B.Undo retention guarantee for the database must be configured.

  C.EXECUTE privilege on the DBMS_FLASHBACK package must be granted to the user flashing back transaction.

  D.B.Undo retention guarantee for the database must be configured.C.EXECUTE privilege on the DBMS_FLASHBACK package must be granted to the user flashing back transaction.D.Supplemental logging must be enabled.

  E.Recycle bin must be enabled for the database.

  F.Block change tracking must be enabled tor the database.

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• 10On your Oracle 12c database, you Issue the following commands to create indexesSQL > CREATE INDEX oe.ord_customer_ix1 ON oe.orders (customers_id, sales_rep_id) INVISIBLE;SQL> CREATE BITMAP INDEX oe.ord_customer_ix2 ON oe.orders (customers_id, sales_rep_id);Which two statement are correct、

  A.Both the indexes are created; however, only the ORD_COSTOMER index is visible.

  B.The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan.

  C.Only the ORD_CUSTOMER_IX1 index is create

  D.D.Only the ORD_CUSTOMER_IX2 index is created.

  E.Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.

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