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

In cobol+DB2program if the code of cobol program has changed than i have to do precompilation once again?

TCS,

6 11017

In DCB, what is LRECL,BLKSIZE,DSORG

TCS,

1 8008

In SPACE,what is directory,RLSE

TCS,

6 10561

what is fixed length and variable length and difference between them

CGI, Wipro,

1 6437

what is JCLLIB and PROCLIB in jcl and their syntax

IBM,

3 29010

what is the resolution for sb37 error

TCS,

2 8953

. What is the difference between the following statements : I) step#1 exec PGM=accpay ii) step#1 exec tbalance

1 4974

What is the error in the following JCL statements : I) //step#three exec pgm=hkbc762 ii) //step#3 exec pgm = hkbc762 iii) //step#3 exec pgr = hkbc672

6 8420

What is Backward Referencing ?

HSBC,

3 16677

what is the difference between the jes2 and jes3

2 8933

diffrence between renames and redifnes with examples

IBM,

3 27211

what is utility for parm lib

IBM,

2311

what is parm utility

IBM,

2 4602

what is load and unload in db2

IBM,

1 5884

how to copy the host variables from ps file into cobol program other than include statement

Syntel,

1 7855

Un-Answered Questions { IBM MainFrame }

Define an asra abend?

1031

HOW to change the coloumns in XREF?

1960

How can you count the number of rows from a table tab?

1043

Explain isolation level?

1045

How can we debug cobol pgm containig idms using xpeditor?

1464

What is a dbrm in db2?

971

What are various search techniques in cobol? Explain.

1028

Can anyone provide me the source code for LOC(lines of code) counter written in REXX language which can run on IBM mainframe z/OS V1R4. The LOC counter should be able to count the comments,lines of code,blank lines in a COBOL program and JCL's

2570

How to find occurrence of mu and pe fields in a file?

834

How do I change the column size in db2?

1084

What is null indicator in db2?

1054

What are the bind parameters ibm db2?

991

what is the use of the file status clause in the select statement in vsam?

1056

What is query_cache_limit?

930

what is DSN in JCL and what are the parameters to declare the DSN?

1148

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