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

How to read records which is in sequential file in reverse order ? Exp. 1 2 3 4 5 . i want 5 4 3 2 1?please clear my doubt any one

IBM,

10 26565

How to create a key field for a logical file inside RPG?

HSBC,

4 14316

Can somebody tell me that, Is it possible to read all the member of PF without OVRDBF?

6 12771

What is the OPEN and CLOSE accesspath?

CTS,

3 10071

what is estimation? and what is the level identifier parameter in PF?

TCS,

3 9127

IN RLU what are the record level keyword is used?

iGate, TCS,

5 14852

What is "Call by content" and "call by reference"?

ADP, Syntel,

4 21685

what built in function can be used with SETLL.If you want to check whether the search argument is successful or not? Please give me answer with example?

3 9705

what is mean by *MAP and *DROP?what commands use these two keywords?why are they used?

4 19141

write the SQL statement to retrieve the 2nd Highest salary ammount(File Name="EMPLOY",Field Name="SALARY")

Bally Technologies, Cognizant, Vertex,

6 20600

How can we find from which source the program has been compiled for a given RPGLE program object?

5 15498

Please give me the code for A=A+1 in cl program?

2 7050

what is the correct about QTEMP library(below mention)? a.it is Unique to a job b.it can be shared between different job c.it can only be deleted by QSECOFR d.Non Please give me the answer for this?

Wipro,

8 13228

An rpg program is processing an openquery file.The file is declared in update mode in F spec.Can we update this file? Please explain?

3 13205

A phisical file has two fields like 1) Account No(10,0) 2)Phone No(15,0)Unique on both fields?Please give me the answer for this?

3 7668

Un-Answered Questions { MainFrame }

Which isolation level provides maximum concurrency?

1152

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.

2432

In job processing, what happens in conversion stage?

1197

how do you fire a batch job from a cics txn ?

1052

Explain how can return codes be tested before execution of a job step?

1329

can you have multiple key lists for a single file ?

1700

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

1035

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

2785

What is the cics command that is used to access current date and time?

1121

in my project..TEST is db2 8.1 version In PROD it is 7.1 if i do REORG in TEST.. can I use the same REORG jcl with out modification in PROD region (this is DB2 8.1 )? if not, what modification i need to do in my REORG control card?

2097

Name the parameters which can be used to limit the number of records written to a sysout dataset?

1155

i want a program using by if, evaluate , string, unstring, perform, occurs?

4722

what is the difference between JES3 and JES2?

1132

Write the difference between hidam and hdam databases?

1007

What is bind in db2?

1044

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