A user reports experiencing high latency when connecting to online services. As a technician, you are tasked with troubleshooting the network to find the BEST solution to this issue. Which of the following should you check FIRST?
Contact the ISP to check their advertised speeds.
Swap out Ethernet cables from the user's device to the switch.
Update network card drivers on the user's device.
Check for excessive bandwidth usage on the network.
Since high latency can be an indicator of network congestion, checking for excessive bandwidth usage is a logical first step. This can be due to numerous devices or applications consuming large amounts of data, which would delay the traffic flow. It is the most likely cause of the problem compared to the other options. Updating network drivers, while a valid step, usually addresses compatibility or functionality issues and is less likely to resolve latency. Checking ISP speeds is a broad action and should be done after confirming there are no issues within the internal network. Swapping cables may address physical connectivity issues, but is not the most direct step to resolving high latency issues.
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What tools can you use to check for excessive bandwidth usage on a network?
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How does excessive bandwidth usage lead to high latency?
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When should you consider ISP speeds during latency troubleshooting?