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单项选择题

A.affinity maskB.affinity I O mask C.max degree of para……

You administer a SQL Server 2008 instance. The instance is located on a four-processor, quad-core server. The server frequently experiences CPU pressure. The instance contains a very large mission-critical database that is used continuously. You need to ensure that online index rebuilds do not consume all available CPU cycles.
Which configuration option should you use?()



A.affinity mask
B.affinity I/O mask 
C.max degree of parallelism
D.optimize for ad hoc workloads