Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

While troubleshooting slow file transfers between a Linux application server and a database host on another subnet, you find that 64-byte pings succeed but large SCP transfers hang immediately. You suspect a path MTU problem caused by a jumbo-frame mismatch somewhere along the route. Logged in as an unprivileged user on the application server, you want to determine automatically what the largest MTU is that can traverse the entire path without fragmentation, without having to guess packet sizes or modify interface settings. Which single Linux command would provide this information?

  • ping -M do -s 8972 10.1.20.50

  • netstat -s | grep -i fragment

  • tracepath 10.1.20.50

  • ip link show dev eth0

CompTIA Linux+ XK0-006 (V8)
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