Scenario: Management has asked for all LDAP communication to be secured. A Citrix Engineer has modified the LDAP server address to use the Fully Qualified
Domain Name (FQDN) and has changed to the default secure port. After doing so, the XenMobile Server cannot save the new settings and prompts with the error
“Cannot connect. Try again.”
Which two things should the engineer verify to resolve this issue? (Choose two.)

A.
That the firewall between the two servers is allowing traffic over port 636

B.
That the firewall between the two servers is allowing traffic over port 389

C.
That the server certificate of the domain controller has been added to the XenMobile Server

D.
That the root certificate of the domain controller has been added to the XenMobile Server