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问题:

[单选] Your developers have asked you to restore the development database, which is in NOARCHIVELOG mode, back to last Tuesday the 20th. Your last backup is from Monday the 19th. What do you do?()

A .  Restore the 19ths backup, restore all archived redo logs, recover the database to the 20th,and open the database.
B .  Tell them that their request cannot be met with the current backup strategy.
C .  Restore the 19ths backup, apply the online redo logs,and open the database.
D .  Switch the database into ARCHIVELOG mode,restore the 19th’s backup,restore all archived redo  logs,and recover the database to the 20th.
E .  Use the recover database command to roll back the database from today to the 19th of the month.

Companycom has a 16 way 1.65 GHz p5 590 and wants to install a i5/OS partition on their server. The customer wants to keep installation costs to a minimum by sharing devices between all LPARs. Before the operating system can be installed in this partition, the customer was told that there are certain limitations that must be observed. What are these limitations?() When the i5/OS partition is housed in the p5 590, the HMC allows seamless installation in a partition as long as the minimum one processor, 256 MB of memory, one Ethernet and one boot adapter/disk is available from internal hardware. 。 V5R3 and later releases of i5/OS can be installed on a POWER5 server partition. Only one processor can be assigned to the i5/OS. A special expansion tower must be ordered. This expansion tower and its devices can be shared with other OS partitions. 。 When the i5/OS partition is housed in the p5 590, the 5250 Twinaxial console must be used to set up the partition. Only one processor can be assigned to the i5/OS partition. A special expansion tower must be ordered to house the IOPs. Devices in the special expansion tower can be shared with other Linux partitions.  。 V5R3 and later releases of i5/OS can be installed on IBM eServer p5 servers. i5/OS can run on two processors in the p5 590. A special expansion tower must be ordered. This expansion tower and its devices cannot be shared with other OS partitions. The iSeries expansion towers are seen by the IBM eServer p5 server as an I/O subsystem.。 资产评估的经济原则()。 贡献原则。 预期原则。 替代原则。 公开市场原则。 简述小企业进行人才开发的优势与劣势。 In your database, online redo log files are multiplexed and one of the members in a group is lost due to media failure.  How would you recover the lost redo log member?() import the database from the last export。 restore all the members in the group from the last backup。 drop the lost member from the database, and then add a new member to the group。 restore all the database files from the backup, and then perform a complete recovery 。 restore all the database files from the backup, and then perform an incomplete recovery。 氢气系统优化的最终目标是降低全厂制氢装置能耗,遵循的框架步骤有()。 应降低用氢装置的氢气需求。 提高副产氢量。 氢气网络系统优化匹配及氢气资源回收利用。 优化制氢装置。 提高关键设备的效率。 Your developers have asked you to restore the development database, which is in NOARCHIVELOG mode, back to last Tuesday the 20th. Your last backup is from Monday the 19th. What do you do?()
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