某茶厂4―6月的销售量分别为105、110、105、115、110、120万元试用简单平均法预测7月份的销售量为（）。 110万元。 115万元。 120万元。 125万元。
shirin plans to change the form and views of a production database. she will make the changes locally and then update the application’s design template with the changes. which one of the following server tasks does the administrator run in order for the changes to take effect?（） design 。 updall 。 replica 。 fixu。
An enterprise has two nodes： -Node ’A’ runs a large relational database and ha six CPUs and 32GB of memory. -Node ’B’ is an application server with three CPU’s and 16GB of memory. During peak production periods， the CPU load for Node ’A’ is normally between 30% and 40%. For Node ’B’， the CPU load is 10% to 20% during peak production periods. Which of the following describes the best solution for an HACMP cluster？（） Two cluster with two resource groups in a mutual takeover configuration.。 One cluster with two cascading resource groups in a mutual takeover configuration.。 One cluster with two rotating resource groups in a one-sided hot standby configuration.。 Two clusters with two resource groups in a hot-standby configuration with a newly acquired third node.。
Which of the following commands is used to retrieve database names from the local catalog for DRDA host databases on System i and System z?（） LIST DB DIRECTORY。 LIST DCS DIRECTORY。 LIST NODE DIRECTORY。 LIST ACTIVE DATABASES。
抽样调查的精度是指（） 估计量的抽样误差与待估的参数之比。 估计量的抽样标准误差与待估的参数之比。 估计量的抽样误差与方差之比。 估计量的抽样标准误差与方差之比。
A system administrator is unable to unmount a file system. Which is the appropriate command to determine who or what is accessing the file system？（）
