Multiple choice technology mainframe At a time, upto ____ jobs can read from the dataset if DISP=SHR is used 121 127 255 516 Reveal answer Fill a bubble to check yourself B Correct answer Explanation DISP=SHR allows multiple jobs to concurrently read a dataset. The system allows up to 127 jobs to have read-only access simultaneously. This is useful when multiple jobs need to read the same data at the same time.