JCL Interview Questions
Questions Answers Views Company eMail

What is a GDG

IBM,

3 5320

What is a Generation Data Group (GDG)?

1 4034

How is a GDG base created?

4 13940

What is model dataset label(Model DSCB)?

1 14255

How are GDGs concatenated?

1 5786

How is a new GDG coded?

2 4287

When should DISP=MOD is used?

TCS,

5 24494

How is a dataset passed from one step to another?

DELL,

2 5594

How are datasets concatenated?

CitiGroup,

2 5564

What is the difference between the JOBLIB and the STEPLIB statements?

3 17297

Name some of the JCL statements that are not allowed in procs.?

1 5632

What is primary allocation for a dataset?

4 6217

What is the difference between primary and secondary allocations for a dataset?

8 24972

How many extents are possible for a sequential file ? For a VSAM file ?

2 9738

What does a disposition of (NEW,CATLG,DELETE) mean?

3 7101


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Un-Answered Questions { JCL }

I have a cobol db2 program(PGM A) where other program (PGM B) will call this program and passes some 50 fields data to PGM A. PGM A has some layout in which it receives the data from PGM B. And this layout has been copied in the linkage section pf PGM A. After getting the data, PGM A writes the data in a flat file in the same layout which it receives from PGM B. PGM B is a simple COBOL pgm. Please provide a JCL to run these programs.

520


I need exexution process for JCL programs

588


what are the types of abends that occur on job failure? And explain the possible causes of these

84


I want to join to input files and write the matching fields on to an output file but i dont want the output file a sorted one

657


What do we mean by 'Virtual storage' for a dataset and for a JOBSTEP ? What is the significance of the following statement for a programmer 'Virtual storage results in program addresses being independent of the addresses that actually exist in a computer' ?

489


1) SORT FIELDS=(20,4,CH,D,10,3,CH,D) OUTREC FIELDS=(7:20,4,C' FUTURE ',20,2,10,3,1Z,1,9,13,7, 24,57,TRAN=LTOU,6X'FF') This example illustrates how a fixed-length input data set can be sorted and reformatted for output. The SORTIN LRECL is 80 bytes. The reformatted output records are fixed length with a record size of 103 bytes. SOLRF (the IBM-supplied default) is in effect, so unless the SORTOUT LRECL is specified or available, it will automatically be set to the reformatted record length of 103. in the above example i have some doubts that a) sort fields=(20,4,CH,D,10,3,CH,D) -what exactly it does and this fields related to output record fields or input record fields b)outrec used to refprmat the records after sorting that means could please reply me as soon as possible Thanks. Venkat

4267


how to compare two datasets without using superce because output is limited to 133 bytes

186


I have mainpgm(abc) this is the only cobol pgm(non-db2).And this pgm calling subpgm name "acd" this also only cobol(non- Db)and this pgm calling some other subpgm this pgm has cobol-db2 pgm. 1) IF you calling static mode how to run and how to compile? 2) IF you calling dynamic mode how to run and how to compile? plz suggestion me.

635


I HAVE A VB BLOCK WHICH IS USED AS INPUT IN COBOL CONATINING SOME RECORDS CAN I CHANGE THE FILE FROM VB TO FB?

844


How to code these statements in JCL: CLEANUP INITIAL(NO) RESTART(NO) DYNALLOC(NO) job definition..?

596


whats the diff bw the evaluate also and and?

779


Hello Guys, I have 1+ Year Experience in MAINFRAME TESTING. After 1 Week I have an Interview With a Company on Mainframe Testing. Please Could You Guys Please Suggest me What Sections Should I prepare ?? ___Tell Me the Topic Or Appropriate Site & Links. ?? ---------------Thank You

1112


is there any way to execute more than one proc in the same exec statement at the same time..?

920


What does it mean by Restart and Checkpoint in JCL ? How are checkpoints being taken and what is their usage ? How to use Checkpoint macro on a JOBSTEP ?

5920


what is the compile process of cobol program expalin with code

678