When executing a SQL workload，you choose to generate execution plans only， without collecting execution statistics. Which two statements describe the implications of this？（） It produces less accurate results of the comparison analysis.。 It automatically calls the SQL Tuning Advisor for recommendations.。 It shortens the time of execution and reduces the impact on system resources.。 Only the changes in the execution plan，and not performance regression，are detected.。
变压器空载损耗（）。 全部为铜损耗。 主要为铁损耗。 主要为铜损耗。 全部为铁损耗。
试分析家族企业的优势与劣势，预测它在我国的发展趋势。
A customer wants to hold all enterprise data on their DS4000 system. Several servers were added after they purchased another company. The servers that have to be run are： （1）An Oracle database running on a HP-UX server （2）Several virtual machines running on VMWare ESX server （3）A Microsoft cluster running Exchange 2000 server Which of these new servers can be integrated with the DS4000？（） DS4000 storage does not support HP-UX， so the HP-UX server cannot be integrated.All other new servers can be used.。 An Exchange cluster needs local disks， so the DS4000 cannot be used for this.All other new servers can be used.。 When equipped with proper HBA’s and subsystem device drivers， all new servers can operate with the DS4000 storage device.。 VMWare ESX can use the DS4000 storage； however， the virtual machines running in it will not have access to this storage other than via a virtual disk.All other new servers can be used.。
变压器扇形温度计是反映（）。 线圈温度。 铁芯温度。 上层油温。
A customer is looking at an Oracle eBusiness solution. They would like to know what hardware they will need for the solution. They have some preliminary information from Oracle, including hardware requirements and specifics for their environment. Which of the following should be done next?（）
