Immediately after adding a new disk to or removing an existing disk from an ASM instance, you find that the performance of the database goes down initially until the time the addition or removal process is completed, and then gradually becomes normal.
Which two activities would you perform to maintain a consistent performance of the database while adding or removing disks?（）

You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.
Which method or feature should you use?（）

You are working on a 24X7 database. You want to design a backup strategy for your database that uses user managed backups. You want to be able to perform all backups while the database remains online.
Which statement about performing user-managed backups in a 24x7 environment is true?（）

You are the network administrator for Test King. All network servers run Windows
Server 2003.
You perform a full backup of the network every Monday. You perform incremental
backups on Tuesday, Wednesday, Thursday, and Friday. Backups are always
performed at 1:00 A.M.
On Friday afternoon, a user accidentally deletes a file.
You need to restore the file.
What should you do?（）

An administrator wants to test the performance of an application at different memory sizes.
What is the most effective way to perform the test and collect statistical information for each test?（）

You have a file server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2).
You need to use Windows Backup to meet the following requirements:
·Minimize the number of scheduled backup jobs.
·Perform a scheduled normal backup to disk every Friday.
·Perform a scheduled normal backup to tape every Friday.
·Perform scheduled differential backups to tape every Monday, Tuesday, Wednesday, and Thursday.
How many scheduled jobs should you create from Windows Backup? （）

You are a network administrator for The network contains a Windows Server 2003 computer named Testking1.
You need to install an application on Testking1. The installation will cause several changes to the registry. You plan to use the Backup utility to create a backup that will enable you to restore the registry. TestKing requirements for network management state that all backups must be performed during an eight-hour period at night. Because of this time constraint, you need to ensure that the backup can be recovered as quickly as possible.
You need to create a backup that meets the requirements.
What should you do?（）