Which two statements are true about the duplexing of the backups taken by RMAN？（） It’s only supported for the backups performed on the tape。 It is not supported for backup operations that produce image copies。 Duplex backups need a parallelism for the device to be equal to number of copies。 Duplex backups can be performed to either disk or tape， but cannot be performed on tape and disk simultaneously。
关节松动术的禁忌证包括：（） 关节活动已经过度。 外伤或疾病引起的关节肿胀（渗出增加）。 关节的炎症。 恶性疾病。 未愈合的骨折。
You issued the following RMAN command： RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON； What is NOT an impact of using the above command？（） When a successful backup is recorded in the RMAN repository， then a backup of the current control file is performed.。 When a structural change is made to the database， then a backup of the current control file is performed.。 When a successful backup is performed in the RMAN repository， then a backup of the spfile is performed.。 When a structural change is made to the database， then a backup of the alert log file will be performed.。
You create a tabular employee report and are concerned about readability because the employee records are very close together. What is the best way to increase the amount of white space between the records?（） In the layout model increase the size of the employee record fields. 。 In the report wizard increase the display width values of the employee record fields. 。 In the property palette increase the size of the repeating frame surrounding the employee records. 。 In the life previewer, high light a field, click on the parent frame icon and make the frame bigger verticall.。
滚动轴承是由（）和保持架等组成。
You want to migrate your application from the development environment to the production environment. While doing the task， you want the database objects owned by the user DEVUSER in the development environment to be moved to the user APPS in the production environment. Which option of Oracle Data Pump Import would you use to achieve this objective？（）
