Practice Quiz

VMware VCP4

Category - Troubleshooting

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Alex, a VMware administrator, is experiencing application performance issues on a virtual machine. The ESX host has 2 dual-core CPUs and 64 GB of RAM. It currently hosts 8 virtual machines. The machine with performance issues has 4 vCPUs and 4 GB of RAM. The other 7 machines each have 1 vCPU and 4 GB of RAM. Select a possible cause of the performance issues from the choices below.
  1. There is memory contention on the ESX host.
  2. The virtual machine has a multi-threaded application.
  3. The host only has four 1Gb Ethernet cards.
Explanation
Answer: B - The virtual machine is experiencing application performance problems due to the fact that the virtual machine has the same number of CPUs as the host. Every time the application requests a multi thread to be processed, the host must have 4 available slots available to schedule. Recuing the virtual machine vCPU count to 2 would help.
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