Career Center Interview NotesThis article provides Mainframe Interview Questions covering JCL questions. For more Interview Questions / Answers related to Mainframe, click on links provided at the end of each question set.
JCL Interview Questions
1. What is the advatage of coding RECFM=F over RECFM=FB.
2. Why we use export-import over repro?
3. I have a main program in a pds i.e a.b.c and sub program is in a.b.d.the question is how would be
the format for the DD statement would be same for main program or subprogram.
4. How to by pass the step without cond parameter
5. What is the difference between BLKSIZE and LRECL?
6. How can be determined if date contained in the header of a file is date current date?
7. How will you call the return code of JCL ?
8. Describe the JOB statement, its meaning, syntax and significant keywords.
9. What is a GDG? How is it referenced? How is it defined? What is a MODELDSCB?
10. What are the kinds of job control statements?
11. What is the meaning of keyword in JCL? What is its opposite?
12. Describe the EXEC statement, its meaning, syntax and keywords.
13. Describe the DD statement, its meaning, syntax and keywords.
14. What is a PROC? What is the difference between an instream and a catalogued PROC?
15. What is the difference between a symbolic and an override in executing a PROC?
16. What is RESTART? How is it invoked?
17. Explain concatenating datasets.
18. What is the difference between specifying DISP=OLD and DISP=SHR for a dataset?
19. What is MOD and when would you use it?
20. What are the keywords associated with DCB? How can you specify DCB information? What is the OS precedence
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