1Z0-025 무료 덤프문제 온라인 액세스

When would a DBA need to perform a media recovery?

• A.After instance failure occurs.
• B.When a data file is not synchronized with the other data files, redo logs, and control files.
• C.After abnormal termination of client program.
• D.After the failure of an Oracle background process.
• E.After the database is shutdown by using SHUTDOWN TRANSACTIONAL.

When performing an open database backup, which statement is NOT true?

• A.The database must be operating in ARCHIVELOG mode.
• B.The database tablespaces should be in BEGIN BACKUP mode.
• C.The database is fully accessible to all users.
• D.The database can be open but only in READ ONLY mode.

When the status of the tablespace moves from read-only to read-write, which two events occur? (Choose two)

• A.Redo-log switch must take place.
• B.The DBWn process writes to the data files of the tablespace.
• C.Normal checkpoints on the file now occur.
• D.Oracle automatically means the file for backup.
• E.All objects in the tablespace are checked for integrity.

Which activity would not cause an additional generation of redo?

• A.Open database backup.
• B.Increased transactional activity in the database.
• C.Closed database backup.
• D.Changing the NOLOGGING mode on frequently updated tables to LOGGING.

In orderto keep a standby database up-to-date, archived redo-log files need to be transferred from the primary to the standby server. What are two ways to do this? (Choose two)

• A.Use operating system commands to transfer the files.
• B.Issue the command RECOVER MANAGED STANDBY DATABASE on the standby database.
• C.Specify LOG_ARCHIVE_DEST_n on the standby database.
• D.Specify the service name in LOG_ARCHIVE_DEST_n of the primary database.
• E.Set the STANDBY_ARCHIVE_DEST parameter on the standby database.