What are the maximum and minimum sizes of any CONTROL AREA (VSAM datasets) ?
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Minimum Size : 1 track Maximum size : 10 cylinder
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Minimum Size : 10 track Maximum size : 1 cylinder
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Minimum Size : 0 track Maximum size : 1 track
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Minimum Size : 1 track Maximum size : 1 cylinder
VSAM (Virtual Storage Access Method) CONTROL AREA size constraints: minimum is 1 track, maximum is 1 cylinder. This is defined when creating the VSAM cluster. Options A and B have incorrect ranges. Option C is nonsensical (0 track minimum). Option D correctly states 1 track minimum and 1 cylinder maximum. This is mainframe storage management.
To answer this question, we need to understand the concept of control areas in VSAM datasets.
Control areas are logical divisions within a VSAM dataset that contain data records. Each control area has a fixed size.
The given question asks for the maximum and minimum sizes of any control area in VSAM datasets.
Option A) Minimum Size: 1 track Maximum Size: 10 cylinders Option B) Minimum Size: 10 tracks Maximum Size: 1 cylinder Option C) Minimum Size: 0 tracks Maximum Size: 1 track Option D) Minimum Size: 1 track Maximum Size: 1 cylinder
Let's analyze each option:
Option A) Minimum Size: 1 track Maximum Size: 10 cylinders - This option is incorrect. The minimum size of a control area cannot be 1 track, and the maximum size cannot be 10 cylinders.
Option B) Minimum Size: 10 tracks Maximum Size: 1 cylinder - This option is incorrect. The minimum size of a control area cannot be 10 tracks, and the maximum size cannot be 1 cylinder.
Option C) Minimum Size: 0 tracks Maximum Size: 1 track - This option is incorrect. The minimum size of a control area cannot be 0 tracks.
Option D) Minimum Size: 1 track Maximum Size: 1 cylinder - This option is correct. The minimum size of a control area is 1 track, and the maximum size is 1 cylinder.
Therefore, the correct answer is Option D. The minimum size of any control area is 1 track, and the maximum size is 1 cylinder.