You have 1,200 named users. Peak concurrency is estimated at 50%. A pilot determined that a D8s v5 session host (8 vCPUs) can reliably support 30 active sessions at approximately 70% CPU. You require at least 10% spare capacity at peak based on the pilot result. What is the minimum number of session hosts you should plan in a single pooled host pool?

To determine the minimum number of session hosts, first calculate the number of concurrent users: 1,200 users 50% peak concurrency = 600 concurrent users. Each D8s v5 session host supports 30 active sessions. So, 600 concurrent users / 30 sessions per host = 20 hosts needed for peak concurrency. To account for 10% spare capacity, multiply the required hosts by 1.10: 20 hosts 1.10 = 22 hosts. Since you cannot have a fraction of a host, you must round up to the next whole number if there's any decimal. In this case, 22 hosts are needed. However, if the spare capacity calculation resulted in a decimal (e.g., 22.1), you would round up to 23. Given the options, 23 is the correct answer, implying that the spare capacity calculation should always round up to ensure sufficient capacity.