What are functions of Query Viewers? (Select two.)

A.
display the Boolean logic behind filters and rules

B.
provide a quick way to run SQL queries and identify trends without running reports

C.
determine which devices are off-line at any given point in time by querying their status

D.
provide a baseline analysis of events against which future queries can be compared

E.
present detailed comparisons of report elements, not possible with the reporting tool