单项选择题

The IBM System Storage TS7650 ProtecTIER Appliance and Gateway solution is designed toaddress which customer requirement?（）

A.latency across a long distance network
B.high-speed backup of large video files
C.increase levels of data protection with enterprise class data integrity
D.improve backup and recovery operations without changing existing backup processes,procedures or policies

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多项选择题

These are the details about V$FLASHBACK_DATABASE_STAT：
SQL> DESC V$FLASHBACK_DATABASE_STAT Name Null？ Type
------------- -------- --------------
BEGIN_TIME DATE END_TIME DATE
FLASHBACK_DATA NUMBER
DB_DATA NUMBER REDO_DATA NUMBER
ESTIMATED_FLASHBACK_SIZE NUMBER
Which two statements regarding the V$FLASHBACK_DATABASE_STAT view are true？（）

A.BEGIN_TIME is the time at which Flashback logging is enabled.
B.END_TIME is the time at which the query is executed on the view.
C.REDO_DATA is the number of bytes of redo data written during the interval.
D.This view contains information about flashback data pertaining to the last 24 hours.
E.FLASHBACK_DATA is the amount of flashback data generated since the database was opened.

单项选择题

Which tuning tool recommends how to optimize materialized views so that these views can take advantage of the general query rewrite feature?（）

A. Segment Advisor
B. SQL Access Advisor
C. Undo Advisor
D. SQL Tuning Advisor

单项选择题

A customer has four 2-way 2U front-end web servers that are currently running at 15% CPU utilization. These servers provide points of access for users worldwide， and volume is expected to triple in the next six months and aggressively grow thereafter. They want to upgrade these systems to newer technology and stay within the 8U of rack space that they are replacing. Which solution would fit the customer’s requirements？（）

A.Three x366 4-ways running VMWare ESX Server.
B.An x445 8-way Xeon MP attached to a DS4300 and running VMWare ESX Server.
C.An x445 16-way Xeon MP attached to an EXP400 and running VMWare ESX Server.
D.Four x346 2-ways running VMWare ESX Server.