View the Exhibit and examine the partial output from the query on the v$file_histogram view:
Which statement correctly interprets the output displayed in the Exhibit?
A.
The database waited 58 times in a time interval of two milliseconds for FILE# 1.
B.
The database experienced 58 waits of two milliseconds duration each for FILE# 1.
C.
The database performed 58 synchronous single block reads in a time interval of two milliseconds for FILE# 1.
D.
The database experienced 58 waits of duration less than two milliseconds each that are not included in any smaller bucket.
D https://docs.oracle.com/cd/E18283_01/server.112/e17110/dynviews_1135.htm
Not B because 1.) documentation says clearly ‘smaller’ and 2.) otherwise SINGLEBLKRDS should always be greater than the sum of all preceding SINGLEBLKRDS!