Multiple choice technology mainframe

How many extents are possible for a sequential file,VSAM file

  1. 10 for sequential, 120 for VSAM

  2. 16 for sequential, 123 for VSAM

  3. 10 for sequential, 10 for VSAM

  4. 16 for sequential, 16 for VSAM
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In mainframe JCL, sequential files are limited to 16 extents while VSAM (Virtual Storage Access Method) files can extend up to 123 extents. An extent is a contiguous set of disk tracks allocated to a dataset. When a file grows beyond its initial allocation, it can extend to additional extents up to these system-defined limits.

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