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

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

Under idcams, multiple functions can be executed, each of which returns a condition code. What will be the condition code returned to the operating system?

1021

Using alternate indexes in batch program?

1107

On which dataset you can have alt index?

915

What is the device independent method to indicate where a record is stored?

1049

What is a lds (linear data set) and what is it used for?

1009

What is the biggest disadvantage of using a vsam dataset?

1132

Using alternate indexes in cics program?

1012

What are the distinctive features of a ksda, key sequenced dataset?

991

What does the keyranges parameter in define cluster commends do?

949

If fspc(100 100) is specified does it mean that both the control interval and control area will be left empty because 100 % of both ci and ca are specified to be empty?

1098

Is it slower if you access a record through alt index as compared to primary index?

1022

What is a base cluste?

1094

Would you specify freespace ce for an esds?

1086

What is a lds (linear data set)?

1009

What is speed parameters in define cluster command?

1037

Un-Answered Questions { IBM MainFrame }

Define an associator in adabas?

961

What is db2 plan table?

1049

Under idcams, multiple functions can be executed, each of which returns a condition code. What will be the condition code returned to the operating system?

1021

I have a job called careerride and some steps in it as step1,step2. But I want to execute step2 before step1 ? How do I do that?

1398

I just know the Panvalet dataset name, i would like to search all the members of that dataset for particular keyword through Rexx. how to achive? please suggest. Is it possible to open panvalet member in browse mode using Rexx? Your help would be appreciated very much. Thanks in advance.

5557

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

1206

Define the necessity of run stats among the environment test?

983

My program has an array defined to have 10 items. Due to a bug, I find that even if the program access the 11th item in this array, the program does not abend. What is wrong with it?

1071

How would you find out the total number of rows in a db2 table?

1051

Is db2 a mainframe database?

1000

What is a scope terminator give example?

1110

What is meant by PPT and what are its uses?

1102

Is there a application program coding difference between local and central version mode in idms?

863

I have one ps file in which there are 3 fileds emp_no,emp_name and leave_app.this ps file information give the detail of employee which is going to apply for leave.suppose emp_no=113430,emp_name=ajay,leave_app=1 that means he is going to apply for 1 day leave.and accordingling the table in db2 will be updated means if he has that no of leave in his account then he will get dat leave and updated acc. in table(leave_balance=previous leave present in table-leave_app).Now i want to check whther the updated result is correct or not by comparing the two ps file using IEBCOMPARE or icetool so what is going to be the two ps file and how its is going to be compare.

2430

Can you explain primary aspect of cics?

1158

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