What do host unit hours represent?

Host unit hours represent the consumption of a unit over a specific time period. This metric calculates the total amount of resource time that hosts are being monitored and is typically expressed in hours. For example, if a host is monitored continuously for an entire month, the host unit hours would reflect the total hours that host has been in operation during that period. This measurement is important for understanding resource usage and operational costs within a monitored environment, as it provides insights into how long hosts are active and consuming resources.

This definition emphasizes the connection between resource consumption and time, making option B the correct interpretation of host unit hours. The other options do not accurately capture the essence of what host unit hours measure in terms of monitoring and resource utilization.