[多选]
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（）

A . You can perform consistent backups only.
B . You can perform a complete database backup without shutting down the database instance.
C . You can back up data files only when all data files have the same SCN recorded in the control file.
D . You can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands.

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.。（）对各标段的工程质量和安全生产进行统一管理，负责制定项目部的质量和安全工作目标、计划，并组织贯彻实施。综合部。项目经理。质量安全部。技术部。 What is the architectural benefit of keeping WebLogic Server transaction log in the database?（） Oracle does not allow replicating files between data centers, so keeping transaction log in database allows for replication.。 Many transactions in WebLogic are database centric, so keeping log in database makes Two Phase Commit protocol possible.。 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.。 Transaction log in a file system is extremely slow so it cannot be efficiently replicated.。简述产业结构演变的基本规律。按《公路工程标准施工招标文件》规定，清单数量不包括固定、定位架立钢筋，即固定、定位架立钢筋只计价不计量。

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（）

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[多选] 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（）

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[多选]
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（）