1Z0-514 무료 덤프문제 온라인 액세스

Which two statements are true regarding views? (Choose two)

• A.Views can be created only on tables in the same schema.
• B.Views contain no data
• C.Views provide an additional level of security by restricting access to a predetermined set of rows and columns of a table
• D.Views on one or more tables can be used to update the columns specified in the views.

Which method can you use to receive a notification when the free disk space in the recovery area falls below 10%?

• A.Create an alert that sends a notification when the threshold value is reached.
• B.Submit a job that queries the Automatic Workload Repository (AWK).
• C.Specify the users who should receive notifications In the Preferred Credentials of the Enterprise Manager.
• D.Invoke the Database Configuration Assistant (DBCA. to configure notifications and set threshold values.
• E.Run the Automatic Database Diagnostic Monitor (ADDM) to analyze disk space and display a warning messag

Which two statements arc true regarding object privileges? (Choose two.)

• A.The DBA can revoke object privileges from the owner of the object.
• B.Objectprivileges can begranted only by the owner of the object.
• C.A user automatically has all the object privileges on all the objects contained in his or her schema.
• D.Object privileges can be granted by both owner of the object and the DBA

Which two statements correctly differentiate undo and redo data? (Choose two.)

• A.Redo reverses a change, whereas undo re-creates a change.
• B.Redo protects against inconsistent reads, whereas undo protects against data loss.
• C.Undo reverses a change, whereas redo re-creates a change.
• D.Undo protects against inconsistent reads, whereas redo protects against data loss.

Which statement is true regarding undo tablespace?

• A.Undo tablespace can consist of only one data file that is reused in a cyclic fashion.
• B.Only one undo tablespace can exist in a database.
• C.Undo tablespace Is a temporary tablespace.
• D.Multiple undo tablespaces can exist in a database but only one can be active at a lime.