An administrator has a server that must be upgraded from AIX 5.2 to AIX 5.3. The administrator also needs to use the 64-bit kernel with JFS2 filesystems in rootvg. All critical data resides in a non-rootvg volume group. Which of the following types of install could the administrator use to accomplish this？（） ["Migration Installation","Update_All Installation","Preservation Installation","New and Complete Overwrite Installatio"]
You performed an incomplete recovery on your Oracle Database 10g database using the following command： SQL> RECOVER DATABASE 2 UNTIL TIME ’20040805：12：10：03’ 3 USING BACKUP CONTROLFILE; In which situation would the above recovery be required？（） ["A user table was lost at the specified time.","A redo log file was lost at the specified time.","The backup control file is on a faster disk than the current one.","The current control file has a different path compared with the intended time of recovery.","The current control file does not match the physical structure of the database at the intended time of recovery."]
制动机零件清洗后要放在烤箱内烘干。
按封堵头可承受的压力分类，封堵方法分为（）封堵。 ["低压、中压和高压","低压、中高压和超高压","低中压、高压和超高压","低压、中压、高压和超高压"]
A site administrator is configuring Resource-level access control. Which of the following statements about Resource-level access control are true？ Resource-level access control policies：（） ["are optional","are used to protect data beans","provide coarse-grained access control","never specify a relationshi"]
生态系统的物质循环
