XK0-004 · Question #101
A systems administrator observes high latency values when reaching a remote web server. Which of the following commands will help determine and isolate issues on the network side?
The correct answer is A. mtr. mtr combines the functionality of traceroute and ping to show per-hop latency and packet loss in real-time, making it the best tool for isolating network path issues to a remote host.
Question
A systems administrator observes high latency values when reaching a remote web server. Which of the following commands will help determine and isolate issues on the network side?
Options
- Amtr
- Bdig
- Cnetstat
- Droute
How the community answered
(62 responses)- A82% (51)
- B11% (7)
- C2% (1)
- D5% (3)
Why each option
mtr combines the functionality of traceroute and ping to show per-hop latency and packet loss in real-time, making it the best tool for isolating network path issues to a remote host.
mtr continuously probes each router hop along the path to the destination and reports round-trip times and packet loss per hop, allowing the administrator to pinpoint exactly where latency is introduced or where packet loss begins on the route to the remote web server.
dig is a DNS query tool used to look up domain name records, not to diagnose latency or trace network paths to a remote host.
netstat displays local socket connections, interface statistics, and routing tables on the local machine, but does not probe the remote network path.
route views or manipulates the local kernel routing table, which does not help identify where along the network path latency or packet loss is occurring.
Concept tested: Network path latency diagnosis using mtr
Source: https://linux.die.net/man/8/mtr
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