You have enabled backup optimization in RMAN. You issue the following RMAN command to configure a redundancy-based retention policy: CONFIGURE RETENTION POLICY TO REDUNDANCY 3; Which statement is true?（） [" The command fails because you cannot configure a redundancy-based retention policy when backup optimization is enabled"," Backup optimization is performed, but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up"," Backup optimization is permanently disabled"," Backup optimization is temporarily disabled because a redundancy-based retention policy is specified"]
变压器铁芯中主磁通与负载电流变化（）。 ["成正比","成反比","无关"]
什么是小企业？它有哪些基本特点？
Which of the following is the correct procedure to update the BIOS on LS42 blades without using the AMM?（） ["Insert the Update eXpress Service Pack Installer (UXSPI) CD, boot the LS42 blade and follow the prompts ","Boot the blade to the Bootable Media Creator (BoMC) CD and follow the prompts ","Press F1 when the LS42 system is booting, select Update BIOS, insert the diskette into the diskette drive, and select OK ","Use the Remote Supervisor Adapter virtual disk"]
下列不属于证据特征的是（） ["客观性","关联性","合法性","便利性"]
小企业与大企业相比较有哪些独特之处？
