Your database is functional with peak load for one hour. You want to preserve the performance statistics collected during this period so that they can be used for comparison while analyzing the performance of the database in the future. What action would you take to achieve this task？（） Set the STATISTICS_LEVEL initialization parameter to ALL.。 Create a baseline on a pair of snapshots that have the statistics of the peakload period in the database.。 Decrease the snapshot interval in the AWR to collect more number of snapshots during the peakload period.。 Set the snapshot retention period in the Automatic Workload Repository （AWR） to zero to avoid theautomatic purging of the snapshots.。
现场临时用电系统没有按照“TN-S”系统进行设计和实施容易导致（）事故的发生。 触电。 物体打击。 高空坠落。 坍塌。
The IBM XIV Storage System supports all of the following fiber channel speeds EXCEPT:（）. 1Gbps。 2Gbps。 4Gbps。 8G。
You need to select appropriate processing methods for the EmployeeAssignment measure group and the Employee dimension. Which method should you choose?（） Run a Process Update against the Employee dimension. Run a Process Full against the EmployeeAssignment measure group.。 Run a Process Full against the EmployeeAssignment measure group. Run a Process Update against the Employee dimension.。 Run a Process Full against the Employee dimension. Run a Process Incremental against the EmployeeAssignment measure group.。 Run a Process Incremental against the EmployeeAssignment measure group. Run a Process Full against the Employee dimension.。
教学生识字有很多技巧，有一位教师告诉学生如何区别“买卖”两个字时说：“多了就卖，少了就买。”学生很快记住了这两个字。还有的学生把“干燥”写成“干躁”，把“急躁”写成“急燥”，老师就教学生记住：“干燥防失火，急躁必跺足。”从此以后，学生对这两个字再也不混淆了。该教师的教法是依据了教育心理学中（）。 托尔曼符号学习理论。 布鲁纳的发现学习理论。 奥苏泊尔的有意义学习。 加涅的信息加工学习理论。
Which three are true? （）
