What snapshot recovery point interval does Self-Service Restore support in a Nearsync setup?

An organization has two Nutanix clusters managed by a single Prism Central (PC) instance. They intend to implement Synchronous Replication between the sites. During a failover test, the administrator notices that automatic failover does not occur when the primary site's storage becomes unavailable.
What is the most likely cause of this behavior based on an analysis of the requirements?

An organization requires a maximum data loss of 15 minutes for a Tier-1 application running on Nutanix AHV.
Which configuration best meets this requirement?

An administrator is tasked with ensuring the VMs do not experience downtime during an upcoming network maintenance on the primary cluster. The VMs are protected by a Protection Policy and are configured under a Recovery Plan.
What failover mechanism should the administrator use to ensure the VMs are available on the target cluster before the maintenance window?

An administrator previously configured Synchronous Replication on a VM named MarketVM. Due to upcoming maintenance at the primary site, it was decided to use Cross Cluster Live Migration (CCLM) to move the VM to the secondary site. When running CCLM, the task failed.
What is a possible reason for this CCLM failure?