A virtual Delivery Agent (VDA) is unable to

register to the Delivery Controller.

Which three factors can be causing this issue? (Choose three.)

A. Improperly configured firewalls

B. Time differences between VDA-enabled machines and the joined domain

C. Incorrectly configured Citrix policy in Activ

e Directory

D. Citrix ICA service NOT running

E. Wrong Reverse DNS lookups in a forest