Mainframes JCL Interview Questions

Mainframes JCL Interview Questions
  1. What is JCL?
  2. Difference between JCL and COBOL-II
  3. What is JOB?
  4. What is PROC?
  5. What are the difference between JOB and PROC?
  6. List all JCL statements
  7. What is EXEC statement?
  8. What is DD statement?
  9. What is meant by // and /* and //*
  10. What is PROC and PEND statement?
  11. What is OUTPUT statement?
  12. How many EXEC statement allowed in a single JCL? (255)
  13. How many DD statement allowed in a single JCL? (3273)
  14. Explain JCL coding format
  15. What is Parameter? Tell its 2 types.
  16. What is POSITIONAL PARAMETER?
  17. What is KEYWORD PARAMETER?
  18. What is JOBNAMEs? Explain its rules.
  19. What is 2 parts of POSITIONAL PARAMETER?
  20. Explain Accounting Information in POSITIONAL PARAMETER
  21. Explain Programmer Information in POSITIONAL PARAMETER
  22. What is KEYWORD PARAMETER? How do u find it ? (By = sign)
  23. What is CLASS Parameter?
  24. What is PRTY Parameter?
  25. What is MSGCLASS Parameter?
  26. What is MSGLEVEL Parameter?
  27. Explain MSGLEVEL(0,1), MSGLEVEL(0,2), MSGLEVEL(1,1),
MSGLEVEL(1,2), MSGLEVEL(2,1),MSGLEVEL(2,2).
  1. What is COND Parameter?
  2. What is meant by Return code?
  3. RC=0, RC=8 , RC>8 , RC=3000 explain it
  4. What is the range of the RC (0-4095)
  5. Explain TIME Parameter
  1. How do terminate a job? (3 methods COND, // , TIME)
  2. Explain RESTART Parameter
  3. Explain TYPERUN Parameter
  4. What is HOLD and SCAN ?
  5. Explain ADDRSPC Parameter
  6. What is REAL and VIRT? (Default is VIRT)
  7. Explain REGION Parameter
  8. Explain NOTIFY Parameter
  9. List all JOB Parameters.
  10. What is EXEC Statement? How many EXEC statement allowed in a JCL?
  11. What is PGM, PROC, PARM, COND and TIME Parameters?
  12. Explain ONLY / EVEN in COND Parameter.
  13. What is the difference between JOB COND and EXEC COND parameters?
  14. What us PARM Parameter? Can u explain it with a COBOL Program?
  15. What is DD Stands for?
  16. Explain the DD statement rules
  17. What is the difference between DD Statement and PARM statement (3 points)
  18. What is the difference between DD * , DD Data and DUMMY statement.
  19. What is DLM? Can we use // or /* in DLM statement?
  20. What is meant by DSN?
  21. What is DISP? What are its parameters? (D1,D2.D3)
  22. Explain about NEW, OLD, SHR and MOD.
  23. Explain about KEEP, DELETE, PASS, CATLG and UNCATLG.
  24. Explain about third parameter in DISP Parameter. (D3)
  25. What is UNIT ? Explain its parameters.
  26. What is VOL? Explain its parameters
  27. What is LABEL Parameters?
  28. What is SPACE Parameters?
  29. What is Load Data Set?
  30. What is JOBLIB?
  31. What is STEPLIB?
  32. What is the difference between JOBLIB and STEPLIB?
  33. What is SYSIN and SYSOUT?
  34. What is OCB. Explain its 5 parameters
  1. What is LRECL. Explain it with COBOL statement.
  2. What is BLKSIZE. Explain it with COBOL statement.
  3. What is RECFM. Explain it with COBOL statement.
  4. What is DSORG. Explain it with COBOL statement.
  5. What is EROPT. Explain it with COBOL statement.
  6. What is V, F, U, VB, VF, VBA and FBA?
  7. What is PROCEDURE? What are its 2 types?
  8. What is Instream procedure?
  9. What is catalog procedure?
  10. Explain the coding rules for a Procedure? (4 points)
  11. Explain the coding rules for a Instream Procedure.(4 points)
  12. What is IIP, DIP, ICP, DCP and IAP?
  13. How many types of Parameters are in Procedure.
  14. What is Symbolic Parameters?
  15. What is Overriding Parameter?
  16. Explain filecopy method in Mainframe
  17. What is meant by JCL Utilities?
  18. What are the rules for JCL Utilities?
  19. What is IEBGENER?
  20. What is IEBCOPY?
  21. What is IEBPTPCH?
  22. How do u copy all members from one DSN to other DSN?
  23. How do u copy a particular members from one DSN to other DSN?
  24. How do u copy other than selected members from one DSN to other DSN?
  25. What is meant by System Utilities?
  26. What is IEHPROGM?
  27. What are the rules for System Utilities?
  28. Explain RENAME, NEWNAME, UNCATLG, CATLG and DELETE
  29. What are the differece between System Utilities and JCL Utilities
  30. Explain about Other Utilities?
  31. Explain SORT Utility
  32. Explain SORT FIELDS parameter.
  33. Explain if SORT Parameter CH has the value BI or X or PD or ZD or AC or CH.

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