IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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IBM MainFrame Interview Questions

Questions Answers Views Company eMail

Is there GOTO and SWITCH-CASE available in JCL ? Is IF-THEN-ELSE available in JCL also just like it is available for VSAM datasets under Model Commands category ?

IBM,

1 13622

What is a JCL Command statement ?

IBM,

1 7182

How many JOB statements a JCL can have ? If there are more than one JOB statements in a JCL, are they submitted in succession or in parallel ?

IBM, Tech Mahindra,

4 17265

If Name is NOT given for a JOB statement, then will it give error or installation will supply it for the JOB ?

IBM,

1 9129

How to release a JOB (from the input queue) held by TYPRUN = HOLD ? and how to see the installation default time after which a JOB will be automatically released ? How to see the list of currently HELD JOBS ?

IBM,

5 27263

How to print the Output to SPOOL using MSGCLASS and SYSOUT ?

IBM,

4 23661

Is Default for MSGCLASS = (1,1) ?

IBM,

2 6808

1) Is CLASS used for assigning Priority (as we say a job having class '6' will run before the job having class '5'? then what is the difference between CLASS and PRTY ? 2) In a same JCL, 2 JOB statements with different Classes and NO PRTY are submitted ? which will run first ? & with different classes and different PRTY also, which will run first now ?

IBM,

3 16910

Can we have a JOBSTEP without any EXEC ?

IBM,

6 19854

Is stepname is a MUST and should be unique also for each JOBSTEP ? or system can supply the stepname for a step which is not given a name by the programmer ?

IBM,

6 11335

Why 16 is used in calculating the DPRTY ? as, DPRTY = (num1, num2), THEN, DPRTY = 16* num1 + num2

IBM,

4 11678

As PARM can supply information to a program ? Can PARM be used to supply information to a cataloged or Inline Procedure also ?

IBM, RS Software,

2 6547

what is the Difference between SYSIN and PARM ?

IBM,

5 18488

What is default if we don't specify RD parameter at all ?

IBM,

1 4815

What is Automatic Restart ? EXEC PGM = PROG1, RD = R (Is it the Restart of a JOBSTEP or Restarting the execution of the program?) Do we Restart it or it automatically Restarts executing again and again ? Then when it will finish executing ? or After Abending, when we submit it again, then it is Restarted from the Last successful Checkpoint ? If some JOBSTEP is abending, what is the benifit to Restart it, WILL IT NOT ABEND AGAIN if you don't change the LOGIC ?

IBM,

1 6388

Un-Answered Questions { IBM MainFrame }

How do you write from PL/1 code to JCL?

2296

What is a transid?

1092

Define communication area?

1000

how to initialize a register to 0000?

1172

Explain the difference between record occurrence and record type?

2068

Name a few IBM utility programs, and explain its function.

4985

State the uses of syspring, sysin, sort fields, sum fields and dummy.

1093

What are the common tables in cics and their usage?

1026

Why are you looking for a change?

983

What are the access modes of START statement?

1280

What is ibm db2 client?

948

What is copy pending status in db2?

1129

For what purpose steplib and joblib are used ?

1148

What is an area sweep?

896

How to check sequence on a table in db2?

1069

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