What components are present in an ASM instance？（）

多项选择题WhatarethreebenefitsofusingASM？（）

A. Ease of disk administration and maintenance
B. Load balancing across physical disks
C. Software RAID-1 data redundancy with double or triple mirrors
D. Automatic recovery of failed disks

多项选择题TheNLS_TERRITORYparameterspecifiesthedefaultconventionstobeusedforwhichofthefollowingglobalizationelements？（）

A. Date format
B. Decimal character
C. Group separator
D. First day of the month
E. None of the above
F. All of the above

单项选择题YounoticethatajobinachainhasnotcompletedonanonconstrainedRACdatabase.Whichofthesearevalidreasonswhythatmightoccur？（）

A. The job priority is 1 and the resource consumer group CPU emphasis allocation is a low percentage.
B. The job affinity is to a service and one node in that service is unavailable.
C. The job affinity is to an instance and that instance is unavailable.
D. There is no service affinity.
E. None of the above.

单项选择题Whichofthefollowingarenotdisabledbydefault？（）

A. Jobs
B. Chains
C. Windows
D. Window groups
E. Schedule

单项选择题TheDBAhaschosentomanageSGAandPGAmemoryseparatelyinanOLTPdatabasebecauseofhisuniqueknowledgeoftheapplication.WhichofthesearegoodstartingpointstousewhenconfiguringthemaximumvaluesforSGAandPGA，basedontheamountofmemoryavailableonthesystem？（）

A. 20% SGA  80% PGA
B. 25% SGA  75% PGA
C. 50% SGA  50% PGA
D. 75% SGA  25% PGA
E. 80% SGA  20% PGA