A network engineer is deploying a new virtualized application on a VMware vSphere cluster. The application requires dedicated CPU cores to meet licensing requirements, and the engineer must ensure that no other virtual machine can use those cores. The cluster uses VMware ESXi 7.0. Which configuration should the engineer apply to the virtual machine?
Trap 1: Set a CPU reservation equal to the number of vCPUs.
Incorrect because a reservation guarantees CPU time but does not prevent other VMs from using the same cores.
Trap 2: Enable NUMA node affinity for the VM.
Incorrect because NUMA affinity optimizes memory access, not CPU exclusivity.
Trap 3: Configure a CPU limit equal to the number of vCPUs.
Incorrect because a limit caps CPU usage but does not reserve cores exclusively.
- A
Configure CPU affinity to pin the VM to specific physical cores.
Correct because CPU affinity binds the VM to designated cores, ensuring exclusive use.
- B
Set a CPU reservation equal to the number of vCPUs.
Why wrong: Incorrect because a reservation guarantees CPU time but does not prevent other VMs from using the same cores.
- C
Enable NUMA node affinity for the VM.
Why wrong: Incorrect because NUMA affinity optimizes memory access, not CPU exclusivity.
- D
Configure a CPU limit equal to the number of vCPUs.
Why wrong: Incorrect because a limit caps CPU usage but does not reserve cores exclusively.