AZ104-Q: survive a datacenter failure
A two-instance web workload in a zonal region must remain available if one availability zone fails. What deployment design best meets the requirement?
- A) Put both VMs in one availability set in one zone.
- B) Put both VMs on one larger VM.
- C) Deploy instances across availability zones behind a zone-redundant load-balancing design. ✓
- D) Create two resource groups in the same zone. Answer: C. Availability zones separate instances across datacenter-level fault boundaries. Why not the others: A single zone, VM, or logical resource group does not provide zonal resilience.