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?
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Check the current bandwidth usage and availability on key network segments.
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Upgrade the firmware on network routers and switches to the latest version.
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Inspect the physical layer for any signs of damage or interference in cable connections.
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Immediately configure Quality of Service (QoS) settings to prioritize VoIP traffic.
Checking the current bandwidth usage and availability is the correct first step because increased latency during peak hours often indicates that bandwidth is being saturated. By understanding the usage patterns and identifying any bandwidth-hungry applications, a technician can take steps to manage the load or potentially increase bandwidth to reduce congestion, thus decreasing latency. Configuring Quality of Service for prioritization might be necessary if the bandwidth is not sufficient, but first, the usage needs to be assessed. Upgrading firmware or inspecting the physical layer might not directly relate to solving a congestion-induced latency issue during peak hours without first confirming the root cause is due to bandwidth issues.
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What is latency and why does it matter for VoIP calls?
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What is Quality of Service (QoS) and how can it help with VoIP?