A.you should consider running the set-mailboxdatabasecopy -identity -db01\-ex05 - truncationlagtime 4.0:0:0 command.
B.you should consider running the set-mailboxdatabasecopy -identity -db01\-ex06 -replaylagtime 4.0:0:0 command.
C.you should consider running the set-mailboxdatabasecopy -identity -db01\-ex06 - truncationlagtime 4.0:0:0 command.
D.you should consider running the set-mailboxdatabasecopy -identity -db01\-ex05 -replaylagtime 4.0:0:0 command.