The server host1 has been set up as a backup system with the following /etc/exports：/backups -rw. How can a second server regularly use this disk space？（） /usr/sbin/mkfs -s 8G -o nbpi=2048，frag=512 /dev/lv00 -b -l host1。 /usr/sbin/crnfsmnt -d /backups -l /backups host1 -R -X -v -S -b bg。 /usr/sbin/mknfsmnt -f /backups -d /backups -h host1 -a -S -t rw -w bg -g。 /usr/sbin/crfs -v nfs -g vg1 -A yes -p rw -m /backups -a logname=/dev/lv00。
锅炉DCS系统是指（）。
Which naming method uses the tnsnames.ora file to store the connect descriptor used by the client whileconnecting to the database instance from a remote machine（） Host naming method。 Local naming method。 External naming method。 Directory naming method。
拆除施工尘土较大时，没有采取洒水降尘的措施，容易导致对周围空气造成（）。 职业病。 物体打击。 中毒。 扬尘污染。
In your database， the STATISTICS_LEVEL initialization parameter is set to BASIC. What is the impact of this setting？（） The optimizer statistics are collected automatically.。 Only the timed operating system （OS） statistics and plan execution statistics are collected.。 The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.。 The snapshots for the Automatic Workload Repository （AWR） are not generated automatically. 。 Snapshots cannot be collected manually by using DBMS_WORKLOAD_REPOSITORY PACKAGE.。
An administrator plans to apply a fix pack to the PowerHA software using a rolling migration. At what stage ofthe migration is a cluster verification supported？（）
