CDE is working. However, the customized PATH environment has not been implemented. Which of the following procedures should be performed to activate the implementation?（） Update the .kshrc file。 Edit $HOME/.dtprofile, and uncomment the DTSOURCEPROFILE=true。 Copy /etc/.profile to $HOME/.dtprofile and edit the file as needed。 Double click on the System Administration icon and select CDE profile。
An AIX system administrator wants to reset the level at which the SIGDANGER signal is sent to processes so appropriate actions can be taken when paging space is running low. Which of the following commands is used to reset the level？（） vmtune -w。 svmon -w。 schedtune -w。 vmstat -。
挖土前必须做好地表和坑内降排水，地下水位应保持低于开挖面至少（） 300mm。 140m。 800mm。 180m。
An administrator performs a full backup every Saturday evening and daily incremental backups the rest of the week. The system failed on Thursday and must be restored. Which backup tapes will be required to restore the system to its most recent recoverable state（） Saturday’s full backup tape。 Wednesday’s backup tape。 Saturday’s full backup and Wednesday’s incremental backup tapes。 Saturday’s full backup and Sunday’s through Wednesday’s incremental backup tape。
弃权与禁止反言在人寿保险中的特殊时间规定保险人的抗辩期为（）。 一年。 两年。 三年。 四年。
外源系统最常用的筛选试验是（）
