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CompTIA

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.

Troubleshooting and Diagnostics

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)
  • A
    82% (51)
  • B
    11% (7)
  • C
    2% (1)
  • D
    5% (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.

AmtrCorrect

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.

Bdig

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.

Cnetstat

netstat displays local socket connections, interface statistics, and routing tables on the local machine, but does not probe the remote network path.

Droute

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

Topics

#network latency#mtr#traceroute#network diagnostics

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