COBOL Interview Questions : Series 2

12/11/2009 No Comment

IBM Mainframe COBOL Interview Questions. 

Please use the comment section to answer.

  1. Explain what is the difference between performing a SECTION and a PARAGRAPH?
  2. What is the use of EVALUATE statement?
  3. What do you do to resolve SOC-7 error in COBOL?
  4. How many bytes will a S9(8) COMP field occupy?
  5. What is the maximum value that can be stored in S8(8) COMP?
  6. What is COMP SYNC in COBOL?
  7. What is the maximum size of a 01 level item in COBOL I? in COBOL II?
  8. How do you reference the following file formats from COBOL programs:
  9. What are different file OPEN modes available in COBOL?
  10. Explain how is sign stored in a COMP field?
  11. Explain what do you mean by AMODE(24), AMODE(24), AMODE(31), RMODE(24) and RMODE(any)? applicable to only MVS/ESA Enterprise Server).
  12. What compiler option would you use for dynamic linking in COBOL?
  13. What is the difference between COMP and COMP-3?
  14. Explain what is the mode in which you will OPEN a file for writing?
  15. How many bytes does a S9(7) SIGN TRAILING SEPARATE field occupy in COBOL?
  16. In the JCL, how do you define the files referred to in a subroutine?
  17. Can you REWRITE a record in an ESDS file ? Can you DELETE a record from it?
  18. What is SSRANGE and NOSSRANGE in COBOL?
  19. How do you set a return code to the JCL from a COBOL program?
  20. How can you submit a job from COBOL programs?
  21. Explain what are the differences between OS VS COBOL and VS COBOL II?
  22. What are the steps you go through while creating a COBOL program executable?
  23. Can you call an OS VS COBOL program from a OS VS COBOL II program?
  24. Explain about the explicit scope terminator in COBOL?
  25. What is an in line PERFORM? Explain its usage
  26. If you were passing a table via linkage, which is preferable - a subscript or an index?
  27. Explain the difference between an internal and an external sort
  28. Explain what is the difference between comp and comp-3 usage?
  29. When is a scope terminator mandatory in COBOL?
  30. In an EVALUATE statement is the order of the WHEN clauses significant?
  31. What is SET TO TRUE in COBOL and when it is used?
  32. Explain what is LENGTH COBOL II?
  33. What are the pertinent COBOL commands? Give some examples.
  34. What is the point of the REPLACING option of a copy statement?
  35. What will happen if you code GO BACK instead of STOP RUN?
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