通过感官或借助于一定的科学仪器，在一定时间内有目的、有计划地考察和描述人的各种心理活动和行为表现并收集研究资料的一种方法，称为（）。 观察法。 调查法。 个案法。 测验法。
When the clverify utility is run，verification checks use ODM data provided by the common communication infrastructure. This provides efficient access to configuration ODMs from the other nodes. The utility manages these files by storing the copies in various directories depending on the success or failure of the verification pass. By default，this directory is "/var/hacmp/clverify/current/nodename/ if the ’current’ directory still exists when clverify stops running，this indicates which of the following？（） A successful completion of clverify。 A problem with the clverify utility。 All nodes agree on active configuration。 Configuration differences between current and last successful clverify。
Which background process of a database instance, using Automatic Storage Management (ASM), connects as a foreground process into the ASM instance?（） ASMB。 PMON。 RBAL。 SMON。
气体的危险特性不是装入气瓶以后才有的，也不所有瓶装气体所共有的，它包括（）倾向等性质。 压缩；。 分解、氧化；。 压缩后产生毒性；。 聚合反应。
If the sort heap threshold parameter SHEAPTHRES_SHR is set to a value of 0, what will happen?（） All sorts will be done in a temporary table space. 。 The shared sort memory allocation will be calculated by DB2。 No shared memory is allocated for sorting. 。 All sorts will be done in shared memory.。
Following a system boot， the display indicates that previously detected hardware is missing. What command should be used to identify the missing hardware？（）
