A Linux administrator logs in to a system and identifies that an important backup has been started. The backup process is consuming a considerable amount of CPU lime but needs to continue. Which of the following should the administrator use to reduce the impact this process has on other services?
To reduce the impact of the backup process on other services, the administrator can use the 'renice' command to change the priority of the process. Specifying a positive value (e.g., 15) with 'renice' will decrease the priority of the backup process, allowing other processes to have more CPU time. Therefore, the correct command is 'renice -n 15 -p <backup pid>'.
c renice -n -15 -p
1 to 20 Runs the specified processes slower than the base priority. 0 Sets priority of the specified processes to the base scheduling priority. -20 to -1 Runs the specified processes quicker than the base priority.