An AIX system administrator has setup disk quotas. Where can the reports be found on the system?（） /var/adm/acct/sum 。 /var/adm/ras 。 /usr/sbin/acct 。 /var/adm/wtm。
Which of the following commands should be used to set network attributes on a currently running kernel？（） no。 chdev。 vmtune。 schedtune。
The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session？（） The tape I/O performed is asynchronous。 The tape buffer is allocated from the System Global Area （SGA）。 The tape buffer is allocated from the Program Global Area （PGA）。 Oracle I/O uses an interrupt mechanism to determine when each I/O complete。
用最小平方法拟合直线趋势方程ŷt=a+bt，若b为负数，则该现象趋势为（）。 上升趋势。 下降趋势。 水平趋势。 随机波动。
紧急限压阀在限压状态时各部位的位置与其在（）状态时相同。 缓解。 正在缓解。 制动。 阶段缓解。
Which of the following tools should be used to report current network status and is often used to check the reliability of a network？（）
