汞的主要污染途径和毒性特征主要污染途径。
An administrator wants to restore the /etc/resolv.conf file from a mksysb backup onto server1. After the mksysb is mounted in /mnt/backup/ from the local nim server. Which command should be run to restore the file?（） tar -xvf /mnt/backup/server1.mksysb ./etc/resolv.conf。 restore -Tvf /mnt/backup/server1.mksysb ./etc/resolv.conf。 listvgbackup -f /mnt/backup/server1.mksysb -r ./etc/resolv.conf。 restorevgfiles -xrm /mnt/backup/server1.mksysb ./etc/resolv.conf。
简述在叶轮里进行维护工作时应注意的事项.
You need to perform a block media recovery on the tools01.dbf data file in the SALES database by using Recovery Manager (RMAN).Which two are the prerequisites to perform this operation？（） You must configure block change tracking file。 You must have first level 1 backups for RMAN to restore blocks。 You must ensure that the SALES database is mounted or open。 You must have full or level 0 backups for RMAN to restore blocks。 You must take the tools01.dbf data file offline before you start a block media recovery。
A healthcare customer has an IBM System i server and an HP-UX server. They have high performance I/O， image-based， and archival applications. The customer has asked the IBM team for guidance on IBM DS8000 disk technologies. Which DS8000 disk technology would provide the best performance without regard to cost to meet the customer requirement（） 73 GB 15k and 300 GB 15k drives。 73 GB SSD and 2TB 7.2k drives。 146 GB 15k and 300 GB 15k drives。 146 GB 15k and 2TB 7.2k drive。
小容积气瓶的批量不得大于（）只
