IBM Mainframe Interview Questions covering COBOL questions.
Please use the comments section for answering.
- Explain what are the guidelines should be followed to write a structured Cobol program?
- Explain what is a bind in COBOL?
- What is a linkage section in COBOL?
- What does Pic 9v99 do?
- Explain what is the difference between PIC 9.99 and 9v99 in COBOL?
- What is the difference between a STATIC call and DYNAMIC in COBOL ?
- How to determine if a module is being called STATICALLY or DYNAMICALLY ?
- Explain what is the use of the REPLACING option of a copy statement ?
- Explain what is the difference between a binary search and a sequential search?
- What do you understand by LENGTH in COBOL II ?
- What does SET TO TRUE do in COBOL?
- Explain what is the default value for an INITIALIZE and what keyword allows for an override of the default ?
- What is an in line PERFORM When would you use it Anything else to say about it ?
- Explain how do you submit a job from COBOL programs ?
- How will you set a return code to the JCL from a COBOL program ?
- What is SSRANGE, NOSSRANGE ?
- Explain how do you define a sort file in JCL that runs the COBOL program ?
- What is binary search ?
- In a COBOL II PERFORM statement, when is a conditional tested, is it before or after you perform execution
- Under what circumstances, a scope terminator become mandatory in COBOL?
- In an EVALUTE statement, is the order of the WHEN clauses significant ?
- What is AMODE(24), AMODE(31), RMODE(24) and RMODE(ANY) (applicable to only MVSESA Enterprise Server) ?
- Explain what is Static and Dynamic linking in COBOL?
- What is COMP SYNC in a COBOL program?
- Explain call by context by comparing it to other calls ?
- Can you tell me what was removed from COBOL in the COBOL II implementation ?
- What is the significance of ‘above the line’ and ‘below the line’ in COBOL?
- What COBOL construct is the COBOL II EVALUATE meant to replace ?
- Explain what is the difference between NEXT SENTENCE and CONTINUE in COBOL?
- Explain how do you sort in a COBOL program. Give sort file definition, sort statement syntax and meaning. ?
- Consider a scenario. A program has an array defined to have 10 items. But 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 ?
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