Which three statements are true about Flashback Database、

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• 1In 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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• 2Which 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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• 3Identify 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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• 4You 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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• 5In your database, you want to ensure that idle sessions that are blocking active are automatically terminated after a specified period of time.How would you accomplish this、

  A.Setting a metric threshold

  B.Implementing Database Resource Manager

  C.Enabling resumable timeout for user sessions

  D.Decreasing the value of the IDLE_TIME resource limit in the default profile

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• 6Which statement is true about Enterprise Manager (EM) express in Oracle Database 12c、

  A.By default, EM express is available for a database after database creation.

  B.You can use EM express to manage multiple databases running on the same server.

  C.You can perform basic administrative tasks for pluggable databases by using the EM express interface.

  D.You cannot start up or shut down a database Instance by using EM express.

  E.You can create and configure pluggable databases by using EM express.

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• 7Examine 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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• 8In 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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• 9You 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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• 10Which 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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