During an attempt to mount filesystems on the datavg volume grou, the following error message occurs: "0506-323 Cannot get information about log device loglv00." The error is due to the fjslog 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 restore from a backup。 Create a new jfslog and change /etc/filesystems to point to this log。
Which of the following commands will set the duplex of a network adapter？（） no -a media_speed=100_Full_Duplex en0。 ifconfig -a media_speed=100_Full_Duplex ent0。 chdev -l ent0 -a media_speed=100_Full_Duplex。 chinet -l en0 -a media_speed=100_Full_Duplex en0。
请简要说明已经进入维护阶段的发电机绝缘测试的内容、步骤.
加涅的九大九大教学事件不包括（） 引起注意。 提供学习指导。 提供消极反馈。 促进保持和迁移。
User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA， which commands must you execute to enable SCOTT to flash back the transactions？（） ALTER DATABASE FLASHBACK ON。 GRANT SELECT any transaction TO scott。 GRANT EXECUTE ON dbms_flashback TO scott。 ALTER DATABASE ADD SUPPLEMENTAL LOG DATA。 ALTER TABLESPACE undots1 RETENTION GUARANTEE。 ALTER DATABASE ADD SUPPLEMENTAL LOG DATA （PRIMARY KEY） COLUMNS。
全球第一个官方正式发表的关于电子商务立法的文件是（）
