Point out the wrong statement.
(a) LCK_M_XX wait is often a symptom of blocking
(b) PAGELATCH_XX wait occurs when SQL Server is attempting to latch a page in memory
(c) Few variations of PAGEIOLATCH waits usually indicate a problem with the disk subsystem
(d) All of the mentioned
I had been asked this question in final exam.
My question comes from Wait States in division Monitoring and Auditing of SQL Server