def _IsDaemonActive(host):
  """Check if the mttd daemon process is active or not.

  Args:
    host: an instance of host_util.Host.

  Returns:
    Bool, True if the daemon is now active, otherwise False.
  """
  cmd_result = host.context.Run(['systemctl', 'status', 'mttd.service'],
                                raise_on_failure=False)
  return cmd_result.return_code == 0