An IT support technician in a mid-sized company is noticing that latency issues are affecting the performance of their Voice over IP (VoIP) calls, especially during peak usage hours. Which of the following actions should the technician explore first to troubleshoot and address the latency on the network?
Immediately configure Quality of Service (QoS) settings to prioritize VoIP traffic.
Upgrade the firmware on network routers and switches to the latest version.
Inspect the physical layer for any signs of damage or interference in cable connections.
Check the current bandwidth usage and availability on key network segments.