Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

A developer reports that a freshly built command-line tool crashes immediately with the message "Segmentation fault (core dumped)", yet no core file appears in the working directory or in /var/lib/systemd/coredump. Before you can analyze the fault with gdb you must ensure a core file is actually written the next time the program crashes. Which action will most directly enable core-dump generation for the process without requiring a rebuild of the binary?

  • Increase the process stack size to 64 MiB using ulimit -s 65536.

  • Raise the core-file size limit for the session, for example by running ulimit -c unlimited before starting the application.

  • Enable kernel crash dumping by starting the kdump service and configuring /etc/kdump.conf.

  • Recompile the program with the -g compiler flag so that debugging symbols are included.

CompTIA Linux+ XK0-006 (V8)
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