An administrator is building a large virtual machine that will require as many vCPUs as the host can support. An ESXi 6.x host has these specifications: -Six 32-core Intel Xeon Processors -256 GB of M

64 vCPUs is below the ESXi 6.x per-VM maximum of 128 and would unnecessarily underutilize the available configuration headroom on this host.

The VMware vSphere 6.x Configuration Maximums document specifies that a single virtual machine can have at most 128 vCPUs, regardless of available physical cores. The host provides 6 processors x 32 cores = 192 logical cores, which exceeds 128, so the per-VM vCPU limit is the binding constraint, making 128 the correct maximum allocation.

192 equals the total physical core count on the host but exceeds the ESXi 6.x per-VM vCPU limit of 128, making this an invalid VM configuration.

256 exceeds both the total physical core count of 192 and the ESXi 6.x per-VM hard limit of 128, so this value is not achievable in any configuration.