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

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

What is 'mounting' of volumes ? Is there anything that a programmer can do in it ? How to find currently mounted volume ?

IBM,

2576

How to find the UNIT and VOLUME of a (a) KEPT (b) UNCATALOGED and (c) CATALOGED dataset - using (i) JCL and using (ii) ISPF ?

IBM,

2683

What is TimeStamp, What is TimeStamp error and What is the Abend Code for TimeStamp Error ?

IBM,

4 22370

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 13621

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 17264

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 11334

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

Un-Answered Questions { MainFrame }

What is the use of limit sys?

What do you understand by the terms: joblib and steplib?

1185

What is the difference between fixed length and variable length records?

885

Which is not true about evaluate statement

2465

How to get the last record in vsam file in cluster? And how can you get the ksds file records into your cobol program?

1149

what is rpg ?

1663

If you are current on the owner of a set, what is the difference between obtain next and obtain first?

1359

List down the types of triggers in the db2 database?

1035

I had Records in file Like this Company Code IBM 2 IBM 1 IBM 4 WIPRO 3 WIPRO 2 WIPRO 9 TCS 4 TCS 6 TCS 3 i want the record of every company with highest code How can i do that?

10172

What is the purpose of using commit?

1103

define the purpose of the %sst function?

1661

What is role in db2?

1115

what is utility for parm lib

2387

A join logical file has how many record formats?

1126

execution of a subordinate module is caused by the use of the cobol verbs ------------in the superior module

1091

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