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

what is the compile process of cobol program expalin with code

IBM,

2574

can we modify the code in copy book? if it possible how to submit ofter the modification.

IBM, L&T,

3 8017

if we compile the cobol+ db2 program now ofter 5 years we need to compile again?

TCS,

1 5882

lines(1,cancel)??What is meant by that??Plz explain it....

IBM,

1 4242

What is the use of KSDS,LDS,ESDS,RRDS??what is VRRDS?? How are all these useful in realtime scenario??Plz helpme out...Its a recent question in IGATE..

iGate,

8756

how to resolve sb37,sd37 se37 abends

Keane India Ltd,

3 24120

delete rules in db2

Keane India Ltd,

1 8028

how to compress the data set

Keane India Ltd,

8 18941

print ids(/)char??what is the full form of ids??

HCL, Hotel Jobs,

2 11001

what is Reentrancy and Quasi-reentrancy?

1 4962

how to modify the copy book?explain with examples

TCS,

2 6246

what is static and dynamic call with examples?

IBM,

4 9604

how to resolve the soc4 error?

ITC Infotech,

5 11862

in vsam at the creation of cluster what is the use of RECSZ parameter?

TCS,

2 13596

In vsam at the cluster creation for KSDS FREESPACE parameter is required but for ESDS FREESPACE parameter is not required ?

IBM,

4 12888

Un-Answered Questions { IBM MainFrame }

How many ways are there for initiating a transaction?

1042

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?

2084

Name the two types of transient data queues?

1043

Explain in detail about buffer manager and its functionalities?

1061

What is the job entry system used in your project? based on what criteria the sequence of jobs are picked if priority is not mentioned in the job card?

2284

can I port my existing applications from the mainframe or os/2? Will there be extensive changes required to do this?

974

How many types of page locks can be held in db2?

1035

In which area will you utilize 88 level items in cobol?

1161

How to handle exceptional conditions in cics?

1126

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.

5545

What is cloudant database?

1092

Define transient data?

1023

Explain the logical message in cics?

1013

What are packages in db2?

1019

Define dynamic processing?

1003

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