What are functions of Query-Viewers? (Select two.)
A.
presenting detailed comparisons of report elements, not possible with reporting tools
B.
displaying the Boolean logic and conditions linkage behind filters ana rules criteria
C.
providing a baseline analysis of events against which future queries can be compared
D.
determining which devices are off-line at any given point in time by querying their status
E.
determining which devices are off-line at any given point in time by querying their status