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问题:

[单选] Which of the following is one of the key differentiators between the IBM System Storage DS8000 and the XIV system?()

A . DS8000 supports z/OS; XIV supports both z/OS and Linux on z
B . DS8000 uses standard RAID technology; XIV uses distributed RAID
C . XIV is a single tiered system; DS8000 supports FC and SSD disk technologies only
D . XIV supportsFibre Channel protocol and mixed SATA and FC drives; DS8000 supports parallel grid architecture

You find today’s performance of your production database to be the best ever. Therefore, you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this?() create baseline metrics for today’s performance。 write the current database metrics to a database table and create a trigger to compare with future database statistics。 write the current database metrics to a flat file and create an operating script to compare with future database statistics。 write the current database metrics to a database table and create a procedure to compare with future database statistics。 write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistic。 无领导小组讨论 You have lost all your RMAN backup set pieces due to a disk failure. Unfortunately, you have an automated cross-check script that also does a delete expired backupset command. You have restored all the backup set pieces from tape.  What command would you use to get those backup set pieces registered in the recovery catalog and the control file of the database again?()    register database。  recover catalog。  load backupset。  synch metadata。  catalog start with。 与患者的沟通技巧包括() 开放式提问。 认真聆听。 尽量使用专业术语。 注意掌握时间。 正确使用微笑,手势等肢体语言。 不完全 市场指的是() 竞争市场。 垄断竞争市场。 垄断市场。 寡头市场。 Which of the following is one of the key differentiators between the IBM System Storage DS8000 and the XIV system?()
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