If you want zone-level redundancy:

• Place each VM in a different Availability Zone (e.g., Zone 1 and Zone 2).
• Use a Standard Load Balancer, which supports cross-zone load balancing.
• ✅ Best for high availability during datacenter outages.

➤ If you want rack-level redundancy (within the same zone or region):

• Place both VMs in the same Availability Set.
• Use a Basic or Standard Load Balancer.
• ✅ Best for saving costs and protecting against maintenance events or hardware failures.