VMware Certified Professional - Data Center Virtualization (VCP-DCV) Practice Exam

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In a vSphere environment, what outcome can occur if the active power policy is set improperly?

Increased CPU usage
Enhanced storage performance
Decreased virtual machine performance
Reduced network latency

The correct answer is: Decreased virtual machine performance

Setting the active power policy improperly in a vSphere environment can result in decreased virtual machine performance. Power policies control how physical server resources are utilized, particularly the CPU and memory. If the power policy is set to a mode that prioritizes energy savings over performance, it may lead to throttling of CPU performance or reduced frequencies, which in turn can limit the computational resources available to virtual machines. When resources are throttled or not operating at their full potential, virtual machines may experience slower response times and increased latencies, affecting their overall performance. This is particularly detrimental in environments where performance is critical, such as in applications requiring high availability or processing power. Therefore, it is essential to configure power policies correctly to ensure optimal performance of virtual machines in the data center.