The administrator is gathering baseline data, which represents the normal operational parameters of a network, like average throughput, latency, and packet loss under normal conditions. Baselines are used to identify when performance deviates from the norm and can indicate potential issues or the need for upgrades. Collecting data about peak usage times would only provide information on the network at its highest usage, which does not reflect typical operation. Monitoring for packet loss is a component of maintaining a network but isn’t specifically related to the creation of a baseline. Finally, logging security incidents, while important for security purposes, does not serve the purpose of creating a performance-related baseline.