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Point out the correct statement.

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Point out the correct statement.

(a) 510: CXPACKET indicates parallelism

(b) SQL Server does not always waits for something, a disk io, a place in the processor queue, a lock

(c) Few variations of PAGEIOLATCH waits usually indicate a problem with the disk subsystem

(d) All of the mentioned

The question was asked during an online exam.

My question is taken from Wait States topic in portion Monitoring and Auditing of SQL Server

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Correct choice is (a) 510: CXPACKET indicates parallelism

For explanation: The coordinator thread in a parallel query always accumulates these waits.

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