Tailspin Toys is sizing a pooled host pool for 600 knowledge workers. The agreed density is 4 users per session host, and each host will be a StandardD8asv5 with 8 vCPUs. The target region currently has a quota of 1,000 vCPUs for the Dasv5 family in the subscription, and no other workloads use that family. What must you do before deployment?
- A.
Deploy the session hosts across two availability zones so that each zone has its own quota
- B.
Request a quota increase for the standard DASv5 family vCPUs in the target region
- C.
Split the session hosts across two resource groups in the same subscription
- D.
Change the load-balancing algorithm to depth-first so that fewer vCPUs are consumed
Show answer
Answer: B
600 users at 4 per host needs 150 hosts of 8 vCPUs, which is 1,200 vCPUs against a 1,000 vCPU family quota, so the quota must be raised first.
- A. Availability zones share the regional family quota; zonal spread improves resilience but grants no extra vCPUs.
- B. 150 hosts at 8 vCPUs equals 1,200 vCPUs, above the 1,000 vCPU family quota, and quota is enforced per subscription, region, and family.
- C. Compute quota is not scoped to resource groups, so redistributing resources between them leaves the limit unchanged.
- D. Load balancing only distributes sessions among existing hosts and does not reduce the number of virtual machines required.