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

DLI Vs BMP

CTS, IBM,

13 61993

Static & Dynamic PSB

IBM,

2 11516

The first VSAM file V1 has 2 fields A and B . There is a DB2 file which has fields E and f. We need the fields A, B , E and F to another VSAM file called V2. Kindly mention the logic in procedure division in cobol..

Cap Gemini,

2 9021

What all are the changes to be made in JCL so as to do testing?

TCS,

2 8585

How is manual testing done in MF environment? what all are the steps to follow?

3 8471

which generation language is cobol

Kanbay,

4 11424

can we use full outer join with cursors declared in cobol program?

2 9187

hi is there any means of deletin a record from a ps usin cobol not using jcl?eg if i am reading a record and if some condition is matched tat particular record must be deletd fom the ps

iNautix,

5 15846

hai friends ,i have HSBc exam on this sunday,my platform is Mainframe,i have 1 year exp,pls any one send me placement papers of Hsbc and technical questions on mainframe

Citi Bank, CitiGroup, HSBC, iNautix, Wipro,

6 24173

hello friends ,i have exam in Hsbc,pls any on send me placement papers and technical questions on mainframes,thank u

HF, iNautix,

2138

Do we have any optinon to search part of integer in DB2 as we have for character Like,SUBSTR optins?

1 9100

Can I concatenate various datasets whose organization are different from each other. Lets say I want to cancatenate a PDS file, a PS file, a GDG file etc. Can You do that ?? If yes, how ? is there any separate Utility to do so ???

4 12793

Can we delete the data using IEFBR14 , IEBGENER??

Kanbay,

5 32896

When we give TYPERUN = SCAN , what are the syntax errors we get?

Kanbay,

5 16397

What is maximum length of block size?

Cap Gemini, Kanbay, TCS,

5 23464

Un-Answered Questions { IBM MainFrame }

System Testing for Mainframe Developers What is System Testing? integration testing ? what's the procedure ..

2072

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?

2086

What is the purpose of relative record data set used in vsam?

1091

How to find or access the current level of a gdg?

823

What are the different rules for performing sort operation?

1215

What is house keeping in assembler?

1006

Differentiate between addressing mode and run mode.

1071

Define free space?

1048

What are s0c1, s0c4, s0c5, s0c7 and socb?

1170

how do you reference the ksds vsam file formats from cobol programs

1183

What is the difference between a binary search and a sequential search what are the pertinent cobol?

1134

We can use PASS with permanent datasets also. THEN Which is the condition in which we may use PASS (instead of KEEP) with permanent data sets, while there is no need to specify UNIT and VOL for them like temporary data sets (in cas we use KEEP for permanent data sets) ?

2226

Explain the difference between record occurrence and record type in idms?

859

What is the need for a secondary index in ims?

1075

how do you execute a background cics txn ?

1310

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