Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

A Linux server is running with the default tmpfs mount on /dev/shm:

tmpfs   /dev/shm   tmpfs   defaults   0 0

Several applications that rely on POSIX shared memory begin failing with the error "No space left on device". Organizational policy also requires that executable files and device nodes must not be allowed in that location.

While the system is online you need to perform all of the following in one step:

  • raise the tmpfs limit to 2 GiB,
  • preserve every file that is already in /dev/shm,
  • apply the required hardening options.

Which command meets all of these requirements?

  • mount -o remount,quota=2G,noexec,nodev /dev/shm

  • umount /dev/shm && mount -t tmpfs -o size=2G,noexec,nodev tmpfs /dev/shm

  • mount -o remount,size=2G,noexec,nodev /dev/shm

  • mount -o size=2G,noexec,nodev /dev/shm

CompTIA Linux+ XK0-006 (V8)
System Management
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