Users of a web application on a Linux host report sudden lag. Select the utility that continuously displays packet loss and round-trip time for every segment of the network path between this host and a remote client.
Capture packets with tcpdump and review segment delays later.
Loop ping to track end-to-end round-trip times.
Run mtr to display live loss and delay per segment.
The correct answer is mtr. mtr (My Traceroute) combines the path-discovery of traceroute with the continuous latency and loss reporting of ping, updating statistics live for each network segment. traceroute alone provides a one-time measurement per hop without ongoing updates. ping measures only end-to-end performance. tcpdump captures raw packets for offline inspection but does not aggregate real-time segment metrics.
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Why is continuous monitoring more beneficial than one-time tests like ping?