問題文
An engineer wants a chart listing the five hosts with the highest CPU utilization. Which function does this, and what happens to a host that is in the top five at some times but not others?
選択肢
- The top function selecting by count; a line chart shows every series that was in the top five at any point in the window, and a series that falls out has its value replaced with null at those timestamps.
- The exclude function with a threshold set to the fifth highest value, which leaves exactly five series on the chart and keeps the same five for the whole window.
- The percentile function with a value of ninety-five, which returns the top five percent of hosts and therefore approximates the top five when the fleet has one hundred hosts.
- The count function, which counts the series and keeps only the highest counts, and any series that drops out is carried forward with its last known value so the line stays continuous.