Scenario: Based on a Discussion Between a Citrix Architect and a Team

Scenario: Based on a discussion between a Citrix Architect and a team of Workspacelab members, the MPX Logical layout for Workspacelab has been created across three (3) sites. They captured the following requirements during the design discussion held for a NetScaler design project: All three (3) Workspacelab sites (DC, NDR, and DR) will have similar NetScaler configurations and design. Both external and internal NetScaler MPX appliances will have Global Server Load Balancing (GSLB) configured and deployed in Active/Passive mode. GSLB should resolve both A and AAA DNS queries. In the GSLB deployment, the NDR site will act as backup for the DC site, whereas the DR site will act as backup for the NDR site. When the external NetScaler replies to DNS traffic coming in through Cisco Firepower IPS, the replies should be sent back through the same path. On the internal NetScaler, both the front-end VIP and backend SNIP will be part of the same subnet. The external NetScaler will act as default gateway for the backend servers. All three (3) sites, DC, NDR, and DR, will have two (2) links to the Internet from different service providers configured in Active/Standby mode. Which design decision must the architect make the design requirements above?

A) MAC-based Forwarding must be enabled on the External NetScaler Pair.
B) NSIP of the External NetScaler must be configured as the default gateway on the backend servers.
C) The Internal NetScaler must be deployed in Transparent mode.
D) The ADNS service must be configured with an IPv6 address.