App Mobility Fabric is a technology from Nutanix that allows applications and data to move freely between runtime environments. It allows applications and data to be moved from one environment to another without any disruption or downtime. Reference:  https://www.nutanix.com/products/app-mobility-fabric

An administrator can create VM Protection Policies to enforce VM to host affinity for each VM in the AHV cluster. This will ensure that the VMs are always running on the same host, even if the cluster is resized or the VMs are migrated to other nodes. This is the most efficient way to achieve the desired goal. Reference:  https://portal.nutanix.com/page/documents/details?targetId=Prism-Admin-Guide-v5_6:pr-vmprofiles-affinity-c.html

In order to resolve the issue of not receiving NCC health checks and alerts for newly-added nodes via email, the administrator should configure SMTP (Simple Mail Transfer Protocol) settings. SMTP is used to send email notifications from the Nutanix cluster, and if it is not configured properly, the health checks and alerts will not be sent via email. The administrator should check the SMTP settings in the Prism web console and ensure that they are correct and that the correct email address is specified for receiving notifications. This will ensure that the health checks and alerts for the newly-added nodes are sent to the correct recipient.

To upgrade the LCM framework to the latest version, the administrator must go to the Settings page of the Prism Central UI, and then select the Upgrade Software option. This will show the available versions of the LCM framework, and allow the administrator to select the desired version and upgrade. Reference:  https://portal.nutanix.com/page/documents/details?targetId=Platform-Administrator-Guide-v5_7:pag-lcm-upgrade-c.html

Nutanix Volumes uses a Filesystem Whitelist to control which external hosts can access the iSCSI block devices allocated to them. If the external host IP address is not in the Filesystem Whitelist, it will not be able to discover or connect to the Nutanix-hosted iSCSI block device. Jumbo frames, external client access, and network segmentation are not required for Nutanix Volumes to work. References: https://www.nutanix.com/content/dam/nutanix/resources/datasheets/ds-nutanix-acropolis-block-services.pdf (page 4) https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2049-Nutanix-Volumes:BP-2049-Nutanix-Volumes (page 7)

Administrators can use recovery plans to specify groups of virtual machines and assign them to a destination for disaster recovery using Leap. Reference: Nutanix Certified Associate 6.5 Exam Study Guide, page 56

Replication Factor 2 (RF2) refers to the number of copies of data written in the cluster. When RF2 is enabled, the Nutanix Distributed File System (NDFS) will create two copies of the data, resulting in higher levels of data durability and availability. Reference:  https://portal.nutanix.com/page/documents/details?targetId=Advanced-Administration-v5_7:aa-ndfs-rf2-c.html