A. The C # # B_ADMIN user can perform all backup and re……

多项选择题Which 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.

多项选择题Identify 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.

多项选择题You 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. 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.

单项选择题In 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

多项选择题Examine these two statements:Which three are true about the MRKT tablespace?（）

A. The MRKT tablespace is created as a small file tablespace, because the file size is less than the minimum required for big file files.
B. The MRKT tablespace may be dropped if it has no contents.
C. Users who were using the old default tablespace will have their default tablespaces changed to the MRKT tablespace.
D. No more data files can be added to the tablespace.
E. The relative file number of the tablespace is not stored in rowids for the table rows that are stored in the MRKT tablespace.