自保险合同订立起就不发生法律效力的均无效保险合同属于（） 相对无效保险合同。 条件无效保险合同。 绝对无效保险合同。 法定无效保险合同。
An administrator is ordering a new Power 550. They will mirror rootvg and are concerned about single points of failure. Which of the following features should be ordered（） Dual I/O planar， dual disk drives， dual SCSI adapters。 Dual disk drive enclosures， dual disk drives， extra media bay。 Dual disk drive enclosures， dual disk drives and dual SCSI adapters。 Dual I/O planar， extra media bay， dual disk drive。
A system administrator wants to NFS mount a filesystem from server "Alpha" to server "Bravo." Which command should be issued from "Bravo" to determine which filesystems are being exported by server "Alpha"？ （） lsnfsmnt Alpha。 exportfs -l Alpha。 showmount -e Alpha。 mount -t nfs Alpha。
教学事件指的是教学所包含的经过设计的、外在于学习者的一套用于支持内部学习过程的事件，由（）提出。 加涅。 格朗伦德。 布卢姆。 狄克和凯里。
The system administrator did a new install of AIX on a server about a week ago. The system was not rebooted after the installation. CDE is running on this system as is TCPIP. The system administrator has started configuring the system percompany directives. The power cable was inadvertently disconnected from the wall causing the sever to lose power. Upon reboot, the system appears to hang during log in from the console or from Xterminals. Which of the following is the most probable cause?（） It is a hardware problem caused by the power failure.。 There is a network problem, most probably with name resolution.。 Sine the system was never rebooted, devices are marked defined instead of available and need to be activated.。 Some filesets may be marked as broken and need to be reinstalled.。
After you have restored and recovered a database to a new host by using a previously performed Recovery Manager （RMAN） backup， which is the best option you would consider for the new database？（）
