Multiple choice technology mainframe When output dataset space is required, what quantity categories are used Primary, Secondary, Directory Address, Units, CONTIG or ALS Displacement and length Megabytes, Kilobytes and Bytes Reveal answer Fill a bubble to check yourself A Correct answer Explanation When allocating space for a new dataset in JCL, the SPACE parameter requires the Primary quantity (initial allocation), Secondary quantity (for expansion), and Directory blocks (specifically for Partitioned Data Sets).