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What are the different data types available in COBOL?
Alpha-numeric (X), alphabetic (A) and numeric (9).
My program has an array defined to have 10 items. Due to a bug, I find that even if the program access the 11th item in this array, the program does not abend. What is wrong with it?
What is the mode in which you will OPEN a file for writing?
What is the maximum size of a 01 level item in COBOL I? in COBOL II?
What is the maximum value that can be stored in S9(8) COMP?
How many bytes does a S9(7) SIGN TRAILING SEPARATE field occupy ?
What is 77 level used for ?
How do you reference the following file formats from COBOL programs:
What is the difference between COMP & COMP-3 ?
What does EXIT do ?
Can I redefine an X(100) field with a field of X(200)?
Mainframe Interview Questions
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