Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

A custom C++ service on a test system gradually consumes all available RAM. Running top shows the process's RES value steadily increasing, and the kernel eventually invokes the OOM killer. You clone the service to a development VM and need a single command that will confirm a heap memory leak and display stack traces for every leaked allocation when the program exits. Which command best meets this requirement?

  • vmstat -m 2

  • valgrind --leak-check=full ./myservice --test-mode

  • sar -r 5 120

  • pmap -x $(pidof myservice) | tail -n 1

CompTIA Linux+ XK0-006 (V8)
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