How can an administrator show the CPU usage of a virtual machine over the last month?

To demonstrate the CPU usage of a virtual machine over the last month, accessing the Monitor tab and selecting Overview is the correct method. The Overview section provides a comprehensive view of performance metrics, including historical data for CPU utilization over various time frames, such as the past month. This is particularly useful for administrators needing to assess trends, performance spikes, or resource allocation over a longer duration, allowing for informed decisions about virtual machine adjustments or infrastructure scaling.

Other options may lead to viewing CPU usage statistics but do not give a detailed historical perspective. For example, the Summary tab primarily provides a real-time snapshot of the VM and its current performance parameters but does not offer the extended historical data needed for month-long analysis. The other Monitor options, such as the Events tab, focus on logs of actions or changes and do not pertain to specific performance metrics like CPU usage. Thus, the Monitor tab with the Overview is specifically designed to cater to the requirements of analyzing CPU usage over a selected time period.