VCP-VMC 2024 Question 185
Select 3A VMware administrator is tasked with optimizing the performance of a virtual machine running a database workload on a vSphere environment. The virtual machine is experiencing high CPU ready times and memory contention. Which of the following guest OS optimizations should the administrator implement to improve performance?
- A
Install the latest version of VMware Tools in the guest OS.
- B
Configure the guest OS to use a high-performance power plan.
- C
Enable memory ballooning manually within the guest OS.
- D
Disable unnecessary services and processes in the guest OS.
- E
Increase the guest OS swap file size.
Show answer and explanation
Correct answers: A, B, D
Explanation
To optimize guest OS performance, it is critical to ensure proper communication with the hypervisor through VMware Tools and to configure the OS for maximum efficiency by using a high-performance power plan and disabling unnecessary services. These steps reduce resource contention and allow the virtual machine to fully utilize the allocated resources, addressing issues like high CPU ready times and memory contention.
- A. Correct.
Installing the latest version of VMware Tools ensures the guest OS can properly communicate with the hypervisor, enabling features like enhanced performance monitoring and efficient resource utilization.
- B. Correct.
Using a high-performance power plan in the guest OS prevents CPU throttling and ensures the workload can utilize the allocated resources more effectively.
- C. Incorrect.
Memory ballooning is managed by the hypervisor, and it should not be manually enabled within the guest OS. This option is not applicable for optimizing guest OS performance.
- D. Correct.
Disabling unnecessary services and processes in the guest OS reduces resource contention and improves the overall efficiency of the virtual machine.
- E. Incorrect.
Increasing the guest OS swap file size is a last-resort mechanism for dealing with memory pressure and can degrade performance rather than improve it.