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 number of physical cores needed, we need to factor in the Virtual CPUs (vCPUs) required and the given overcommit ratio. For User Group 1, the requirement is 40 VMs with 2 vCPUs each, thus totaling 80 vCPUs. With an overcommit ratio of 8:1, the physical cores required will be calculated as follows: 80 vCPUs / 8 (overcommit ratio) = 10 physical cores. The closest option to this value is 16 cores. Hence, 16 is the correct answer.
Guys you need to understand that you don't need to apply magic number when Overcommit ratio is given. the overcommit ratio is the magic number in that case its 8. This means required VM vCPU = 2 * 40 = 80. So cores on host = 80/8 = 10 that means 16 is the closest. I recently passed the Exam and came here to clarify on few question for people also that this is dump is not 100 percent as is in exam but 30-40 % . But If you will understand the concept in these questions you will get through for sure. Like I prepared with Official syllabus understood all the concept. and didi a mock like with this exam and refreshed my concept where I missed the helped in the exam. Many questions looks exact same but the question is changed. So I hope this will help you guys. I will check back this question and the number 1 question in this dump, drop me question in this discussion or question number 1. if anyone need help. Good luck Folks.
Overcommit ratio 8:1: 8 vCPU sharing one core. Nothing more - so no magic number calc. Use 2*40/8=10 => 16 is closest!
Regarding the comments calling for 24 cores: Why would we need MORE cores in the host if we are overcommitting? That doesn't make sense. The point of overcommitting is to get a greater user/desktop density per host. 16 cores gets us there. https://docs.citrix.com/en-us/tech-zone/design/design-decisions/single-server-scalability.html#scalability-factors
I think that the correct is E. 2vcpus*40mvs=80vcpus/5(Magic Multipliers)=16 physical cores. https://docs.citrix.com/en-us/tech-zone/design/design-decisions/single-server-scalability.html#the-magic-multipliers
2vCpu x 40=80vcpu /5 (magic multipliers) =16 + overcommit. So answer D would be correct.
No, that's not the way overcommitting works. Overcommit means in this case 8 vCPU sharing one core. Nothing more so no magic number calc. Use 2*40/8=10 => 16 is closest!
Too me it is like this: 40Vm's X 2 Cpu's = 80vCPU's per host / 5 (Magic Multiplier for desktops) = 16 ; so answer E is correct.
D is correct. You must factor in overcommit as well. @kirshad calc is correct.
In what way are you factoring overcommit? What is the formula you are using?
what is the answer if the cpu overcommit is 1.5:1(user group2)
For the User Group 2: vCPU = 6 x 16 / 1.5 = 64