I don't think that's correct? Can someone please check? I think it is A and E.

I think so, the correct answer is A and E. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/admin_guide/X14-0/exwy_b_cisco-expressway-administrator-guide/exwy_m_bandwidth-control.html#reference_CFFF05131846A13120D6287271E78479 About Subzones The Local Zone is made up of subzones. Subzones are used to manage the bandwidth used by different parts of your network, and to control the Expressway's registration, authentication and media encryption policies. When an endpoint registers with the Expressway it is assigned to the right subzone, based on subzone membership rules using endpoint IP address ranges or alias pattern matches.

Selected Answer: AE a & e