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Mohit Wadhwa
Mohit Wadhwa

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Mainframe interview with DDD

  1. How will you split a file equally into 4 files in a COBOL Program?

  2. JOIN in COBOL Program - Best approach!
    (2 input files, 3 output files -> Matching in OUT1, IN1 has IN2 doesn't in OUT2, IN2 has IN1 doesn't in OUT3)

  3. COND Parameters in JCL.
    a) Running a step if all other steps failed
    b) Running a step if all other steps successful

  4. Five (5) JOBs need to run concurrently. All accessing DB2. JOB Parameters like priority, class, msgclass etc. are exactly same in all jobs. How will you maintain the concurrency?

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