Multiple choice technology mainframe For night support, changes in program which work sets do we use? TEMP MAIN ALL OF THE ABOVE NONE OF THE ABOVE Reveal answer Fill a bubble to check yourself A Correct answer Explanation The claimed answer is A (TEMP). For night support, changes in programs use the TEMP work set, not the MAIN work set. This is a common practice where temporary/night changes are isolated to prevent conflicts with mainline production work sets.