[多选]
Examine the following RMAN command:

Which two statements are true regarding the backup taken by using the above RMAN command?（）

A . Only data files and the control file are backed up.
B . Archived redo logs are backed up only I f the database is open during the backup.
C . The backup is deleted after one day, regardless of the default retention policy settings.
D . The backup becomes obsolete after one day, regardless of the default retention policy settings.

区域开发活动环境影响识别主要采用（）等方法。影响矩阵法。图形重叠/GIS系统。数值模拟法。网络与系统流程图。累积因子法。 During an attempt to mount filesystems on the datavg volume group, the following error message occurs: "0506-323 Cannot get information about log device loglv00." The error is due to the fact that the jfslog used by these filesystems is located on a bad disk. Which of the following procedures should be performed to fix the error?（） Run fsck on all filesystems using loglv00。 Run the logform command against loglv00。 Recreate the filesystems and resotre form a backup。 Create a enw jfslog and change /etc/filesystems to point to this log。 A system administrator decides to review the system error log after installing new hardware. Which of the following is the correct command to use？（） errpt。 syslog。 prtdiag。 errlogger。海洋微生物中是雪卡毒素的来源包括（）。蓝绿海藻。裸甲藻。海洋细菌。褐藻。 A host is to become part of a hierarchical naming topology. Which of the following services are required？（） DHCP。 Domain Name Service。 Network Information Service。 A hosts file。

Examine the following RMAN command:

Which two statements are true regarding the backup taken by using the above RMAN command?（）

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[多选] Examine the following RMAN command: Which two statements are true regarding the backup taken by using the above RMAN command?（）

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[多选]
Examine the following RMAN command:

Which two statements are true regarding the backup taken by using the above RMAN command?（）