Scenario: A Citrix Architect is designing a new Citrix Virtual Apps and Desktops environment.
The table in the exhibit lists details about the requirements of the current user groups and their Virtual Delivery Agent (VDA) machine workloads.
Click the Exhibit button to view the table.
The architect should scale the hardware used to host the virtual machines (VMs) for User Group 1 to ________ cores. (Choose the correct option to complete the sentence.)
To determine the correct number of physical cores required, we need to consider the CPU overcommit ratio provided, which is 8:1 for User Group 1. User Group 1 requires 2 virtual CPUs (vCPUs) per VM and has 90 VMs per host. This means the total number of vCPUs required is 2 x 90 = 180 vCPUs. With an 8:1 overcommit ratio, we divide the total vCPUs by the overcommit ratio to get the number of physical cores (pCores) needed: 180 vCPUs / 8 = 22.5 pCores. Since we cannot have a fraction of a core, we round up to the nearest whole number, which is 24 pCores. Therefore, the hardware should be scaled to 24 physical cores.
I think correct answer is B (24 cores). There are two approaches to get there: 1) Consider the total vCores = 2*90 = 180 vcores. With an 8:1 CPU overcommit ratio, this gets down to 180/8 = 22.5 pcores, so 24 pcores is the closest answer matching this capacity. 2) If we use the magic number 5, total number of VMs = 90 / 5 = 18 pcores. Again 24 pcores is the closest to this capacity.
Most of the users here voted B. C isn't correct because we have an overcommit ratio given so magic numbers don't apply. B is correct!
I think B 2*90 = 180 180/8 = 22,5 -> 24 cores
You are right, it seems like they forgot they need 2vcpu per each VDI....
B - 24 has to be the answer because it scales the closest to 90 VMs per host. "take the number of physical cores in a server, multiply it by 5 or 10, and the result will be your SSS" https://docs.citrix.com/en-us/tech-zone/design/design-decisions/single-server-scalability.html Can't be C or D because you would get WAY more than 90 VMs per host. Can't be E because you don't get enough VMs per host.
wait..., this is the famous 5 or 10 rule or magic numbers.... 5 if it's VDI and 10 if it's XA) https://docs.citrix.com/en-us/tech-zone/design/design-decisions/single-server-scalability.html#the-magic-multipliers So..., if we apply this..., 90x2=180/5=36.., so... it's D if we based in the magic numbers.., the answer say E (16) because in a old question this was 40 VDIs .. i think is a old answer in a new question... this is the problem...
It says 1 user/VM, so clearly its a VDI (desktop OS) and magic number 5 should apply here. 90 X 2 / 5 = 36