1. Aruba Central User Guide - Managing Groups: "Aruba Central offers the following two types of configuration methods for device groups: Template-based configuration method... UI-based configuration method... A group can have either template-based configuration method or UI-based configuration method." This confirms that a single group cannot support both methods
invalidating options C and D. (Accessed via Aruba Networks Help Center
help.central.arubanetworks.com
under the "Managing Groups" section).
2. Aruba Central User Guide - Overview of Aruba Central: "Groups allow you to manage devices of the same type or different types together... Sites are the physical locations where the devices are installed." This documentation clarifies the distinct roles of groups (for configuration) and sites (for physical location)
highlighting the incorrect use of sites in option D. (Accessed via Aruba Networks Help Center
help.central.arubanetworks.com
under the "Getting Started" > "Overview of Aruba Central" section).
3. Aruba Validated Solution Guide - Campus Network Design for Aruba Central-Managed Switches (April 2022): Section 3.1
"Groups
" discusses the strategy of using template groups for switches to ensure configuration consistency and UI groups for APs and gateways for ease of management
aligning with the solution presented in option B.