Multiple choice technology mainframe

Determine the total number of bytes in the following 01 REC-1. 02 FIRST-GROUP. 03 A1 PIC X(4). 03 A2 PIC 99. 02 REDEFINES FIRST-GROUP. 03 A3 PIC 999. 03 A4 PIC 999. 02 THIRD-GROUP. 03 A5 OCCURS 5 TIMES PIC 99.

  1. 22

  2. 16

  3. 12

  4. 14
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B Correct answer
Explanation

To calculate total bytes: A1 is X(4)=4 bytes, A2 is 99=2 bytes. FIRST-GROUP=6 bytes. A3 is 999=3 bytes, A4 is 999=3 bytes. REDEFINES means A3+A4 share the same 6 bytes as A1+A2 (they don't add extra). A5 OCCURS 5 TIMES with PIC 99=2 bytes each, so 5×2=10 bytes. Total: FIRST-GROUP(6) + THIRD-GROUP(10) = 16 bytes.

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