Explanation
The Alerts and Events dashboard displays all types of alerts and events generated for events pertaining to device provisioning, configuration, and user management. You can use the Config icon to configure alerts and notifications for different alert categories and severities . You can also view the alerts and events in the List view and Summary view2. References:
https://www.arubanetworks.com/techdocs/central/latest/content/nms/alerts/configuring-alerts.htm 2
https://www.arubanetworks.com/techdocs/central/latest/content/nms/alerts/viewing-alerts.htm

In Aruba Central during group creation, users can define various configuration groups to manage settings for multiple devices. A Security group allows you to apply consistent security settings across devices, and a Template group enables you to apply pre-defined configurations to devices. These groups help streamline the deployment and management of network devices in Aruba Central.

The ideal mounting position for a typical Aruba indoor AP is horizontally, below a suspended ceiling. This positioning takes advantage of the AP's antenna radiation pattern and helps provide optimal wireless coverage and performance within the indoor environment.

Virtual Router Redundancy Protocol (VRRP) is a network protocol that provides automatic assignment of available Internet Protocol (IP) routers to participating hosts. VRRP sends its messages over multicast for communication among routers for the election process of the master and advertisement of the virtual IP address.