The administrator should analyze flow records. These records typically consist of details like the endpoints communicating over the network, the time at which communications occurred, and the identifiers for the applications in use. This information is integral to traffic pattern analysis and threat detection, as it allows for the assessment of communication origins, destinations, and timing, which can reveal unusual or unauthorized activities. The information about the type of cable is not directly related to traffic flows and is more pertinent to network infrastructure assessments. The physical addresses, often referring to MAC addresses, are important for internal network configuration and troubleshooting but are less useful for identifying traffic patterns across larger IP networks. The configuration of VLANs is crucial for internal network segmentation but does not provide direct insights into the content or nature of the data flows.