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

Feedback about ELI Faridabad.

3 4039

If a file has 1000 records.. if i have to replace the first and last characters of the file with another character. how it can be done....

HCL,

1 4061

If my program receives input feed from program in other system.. if the receiving field size is less than the sending field.. what abend will be happening.

HCL,

1 2692

How to restart a DB2 program?

Cognizant,

1915

I have a PF with out any data but the dependent LF is having data?

HCL,

1 4194

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

2117

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

1630

Hello friends, i am having 1 year experience in AS/400. Can any one send me the as400 interview questions to my email id:nagaraju20087@gmail.com

1 2808

What is the purpose of PR and PI in calling program and called program? in Called program PR is compulsory?

HCL,

1 6306

How to read the 2nd last record of a VSAM file? (The file size is huge and we don't know the key)

HCL,

3271

In the house keeping section of an MVS assembly language program, like the one below STM R14,R12,12(R13) BASR R12,R0 USING *,R12,R11 LA R11,2048 LA R11,2048(R11,R12) .... .... 1. What if BASR R12,R0 IS NOT PRECEDE USING *,R12,R11? 2. USING (base address), REGISTER does USING directive says assembler to treat particular Register as a base register with the mentioned base address..in the above case * i.e current location counter..well if that is the case why we need BASR R12,R0 ? 3. What if I write like STM R14,R12,12(R13) BASR R12,R0 LA R11,2048 LA R11,2048(R11,R12) USING *,R12,R11 there is no address resolution being calculated in both LA statements so is it a right way to set Base register?..will there be any issues with Domain regarding R11 and R12?

1988

What does LA R3,R3 ?

Amdocs,

1 3245

What is the draw back of Procedures? why we are going to Modules?

1799

How to define data area in RPG program? In which scenario multi occurrence DS is use in AS400?

2022

How to select highest score of each subject or how to select highest income of every month?

1772

Un-Answered Questions { MainFrame }

Can you define a gdg?

1000

what are necessary keywords to code message subfile?

1767

What are steplib and joblib?

1178

What is mainframe cics?

1121

hi provide info about any real time requirement in health care and banking services mainframe applications. pls send immediate reply to me.

1997

What is the difference between the mro & isc?

1055

are there any useful c runtime apis that I can call from rpg iv?

1174

how do you know that records are locked?

1974

what is a jcl?

1141

i am using non join multiple format my 3 database file is like that pf97 R REC ENAME ETENNO ESTATUS K ENAME pf98 R REC1 ENAME ESAL K ENAME PF99 R REC3 ENAME CRDCARD EID K EID & MY NON JOIN LOGICAL FILE IS ALSO SAME EXCEPT RECORD NAMES BEFORE I TRIED WITH 2 FILES SO ITS SAYS ERROR I.E.(Key field attributes must be same as for previous formats. ) SO I CHANGED KEYFIELD ACCORDING TO PF SO ITS WORKING BUT AFTER ADDING 3 FILES ITS SAYING SAME ERROR . I DONT KNOW I NEW IN AS400 PLLZ HELP ME I HAVE ONE MORE QUE. CANT BE USE DIFFERENT KEYFIELD (NOT ACCORDING TO PF) IN NON JOIN LOGICAL FILE.

1509

Can you explain common systems area?

1120

In RPG How to read a records from a file without using read opcodes?

1530

What is the use of base and index registers in the IBM 360/370 processor?

3775

What are the various error conditions seen in rexx?

933

What is the use of predicate?

1053

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