An administrator is creating a new virtual machine using the New Virtual Machine wizard in custom mode on an ESXi 5.x host with two quad-core CPUs. What would limit the maximum number of virtual sockets for the virtual machine to 8? (Choose three.)
A.
Windows 2008 32-bit is configured as the guest operating system.
B.
Virtual machine hardware version 8 is configured for the VM.
C.
Hyperthreading is disabled on the ESXi host.
D.
The ESXi host is configured with a Standard license.
E.
The number of cores per virtual socket is set to 4.
E. The number of cores per virtual socket is set to 4.
Why?
This host has 2 CPU quad-core(2*4=8), if hyperthreading is enabled 8 core*2=16. 16 is the maximum of cores for the vm. if you select 8 virtual sockets for the vm, only 2 core for virtual socket, not?
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8 way vCPU with 4 cores each would need to be backed by 32 cores on the host.
8 way vCPU with 2 cores each would only require the 16 cores available on the host.
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so E is incorrect?
this Host has only 16 logicals cpus.
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Answers A and B are wrong for sure.
Windows Server 2008 32-bit max CPU support is 4, but this will not limit the process. The virtual machine will see only 4 CPUs only.
VM hardware version 8 max CPU support is 8 CPU.
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This host has 2 CPU quad-core(2*4=8), if Hyperthreading is enabled 8 core*2=16. 16 is the maximum of cores for the vm considering Hyperthreading enabled.
C. Correct: If Hyperthreading is disabled, the host VMs will no longer able to avail 16 vCPU and limited to 8 vCPU.
D. Correct: ESXi Standard License supports max 8 vCPU/vm.
E. Correct: If the # of cores per virtual socket is set to 4, the max # of vCPU/vm for this host is 16/4=4.
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E. Correct: If the # of cores per virtual socket is set to 4, the max # of vCPU/vm for this host is 16/4=4.
Then , E is incorrect. Right?
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B is the better answer?
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vCPU is not logic CPU, the esxi 5.0 support max 32 vCPU, 32/4 =8, E is correct.
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the question said “what would limit..to 8vcpu”
CDE !!!
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the maximum number of vCPU is 32, and “The number of cores per virtual socket is set to 4”
then, the maximum number of virtual sockets is 32/4=8
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However this host has maximum vCPU 16 even with Hyerthreading, 2sockets * 4 (quad-core) * 2 (hyperhreading) = 16 vCPU, is it the case?
And the question is what limit the vSocket to 8?
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E is correct, assumed using ent or ent+ license max vCPU supported is 32 (guess the question is written for 5.0, 5.1 supports 64 vCPU). So 32/4(core per vsocket) = 8 vsocket
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