运维管理的方式除完全客户管理或外包商管理外，还有（） 用户管理。 项目管理。 外包管理。 客户和外包商分别负责。
What protocol would allow an IBM System Storage N6040 to do a file level backup to a tapedevice？（） FCP。 NFS。 HTTP。 NDMP。
The database Is configured in ARCHIVELOG mode. The database needs to be up 24 X 7. You want to perform user managed backup for the data files of the HR_DATA tablespace.To accomplish the task, you issued the following command: SQL> ALTER TABLESPACE hi_data BEGIN BACKUP; Which two statements are true in this scenario? （） No transaction on the tablespace is allowed but you can perform queries.。 The tablespace will automatically come out of backup mode when the file copy is complete.。 The checkpoint change number is frozen in headers of the data files until the file is removed from backup mode.。 The database writes the before image of an entire block to the redo stream before modifying. block tor the first time.。
You work as a database administrator for Supportcenter.cn. You added atablespaceto your database. Because of the changes to the physical structure of your database， you performed a backup of the control file to trace. After this， you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database？（） Start the instance and open the database， instance recovery automatically recoverscontrol files。 Create a file based on the contents of the trace file and save it to the control file locations and start the database。 Re-create the database （The recovery of the control file is not possible because you have lost all the control files.）。 Start the instance， in the NOMOUNTstate，re-create the control file using the CREATE CONTROLFILE command stored in the trace file.。 Start the instance and MOUNT the database， then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.。
提高教师的教学能力与水平应该从以下四方面出发（）。
创建一家属于自己的企业不是一件轻而易举的事情，必须具备一定的客观条件。例如：（）。
