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[单选] What is the architectural benefit of keeping WebLogic Server transaction log in the database?()

A . Oracle does not allow replicating files between data centers, so keeping transaction log in database allows for replication.
B . Many transactions in WebLogic are database centric, so keeping log in database makes Two Phase Commit protocol possible.
C . It obviates the need to keep in sync two replication technologies (file and database) between  data centers. The single replication technology is used for frequently changing data.
D . Transaction log in a file system is extremely slow so it cannot be efficiently replicated.

多次给药方案中,缩短给药间隔可()。 使达到CSS的时间缩。 提高CSS的水平。 减少血药浓度的波动。 延长半衰期。 提高生物利用度。 Which are DML statements? () COMMIT。 MERGE。 UPDATE。 DELETE。 CREATE。 DROP。 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?() It records the usernames and passwords of users when granted the DBA role.。 It contains the usernames and passwords of users for whom auditing is enabled.。 Is used by Oracle to authenticate users for remote database administration.。 It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.。 It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.。 You are working on a database that must be functioning 24 hours a day, 7 days a week. The databaseis configured in ARCHIVELOG mode.  Which two options do you have for performing user-managed backups() You can perform consistent backups only.。 You can perform a complete database backup without shutting down the database instance.。 You can back up data files only when all data files have the same SCN recorded in the control file.。 You can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands.。 矮篱类树种有 What is the architectural benefit of keeping WebLogic Server transaction log in the database?()
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