Metrics and Super Metrics explains that super metrics are used when administrators need to aggregate or compute new values from existing metrics. Super metrics can be applied across multiple objects, such as aggregating the health score of all VMs in a fleet.
A super metric is a user-defined formula that calculates a value derived from one or more existing metrics. Super metrics can be applied across objects to provide aggregate insights such as averages or totals.

Memory tiering in modern vSphere environments allows hosts to utilize different memory technologies (e.g., DRAM and persistent memory tiers) to optimize cost and performance.
The vSphere documentation explains:
"Memory tiering enables efficient placement of memory pages across different memory types, optimizing performance and capacity for memory-intensive workloads." The primary use case is for:
Large in-memory databases
Analytics workloads
Memory-intensive applications
Incorrect options:
It does not primarily reduce swap for small VMs (A).
It does not directly boost CPU throughput (B).
It does not address host availability during hardware failure (C).
Thus, memory tiering is best suited for optimizing memory usage for large, memory-intensive workloads.

The NSX host overlay VLAN and NSX Edge overlay VLAN must be routed to each other so Edge nodes can establish overlay tunnels with transport nodes.
DNS A records for each NSX Edge node are required for name resolution during deployment and operation.
NSX requires distinct VLAN IDs and subnets for the host overlay network (transport nodes) and the Edge overlay network to segregate traffic and avoid IP space conflicts.
https://techdocs.broadcom.com/us/en/vmware-cis/vcf/vcf-5-2-and-earlier/5-2/map-for-administering-vcf-
5-2/deploying-nsx-edge-clusters-admin/prerequisites-for-an-nsx-edge-cluster-admin.html

vSphere APIs (A), PowerCLI (B), and Scheduled Tasks (D) all allow automation. VM BIOS-level snapshots (C) are not a standard vSphere feature.

The primary benefit of creating a VM template in VMware vCenter is that it allows for the rapid deployment of virtual machines (VMs) with predefined configurations, including the operating system, installed applications, and other settings. This accelerates the process of provisioning VMs, ensuring consistency and saving time during deployment.