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

Explain the like inverted list?

1000

Explain what happens when you issue a escape routine in a program? Will there be any compilation /run time erro?

1025

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

991

Explain control variable in online screens?

1060

Explain how to receive data passed through jcl parm parameter in a natural program? How data definition is defined in the program?

1188

Explain the data storage?

1065

What is the difference between read(1) and read work file once?

1119

Explain how to move cursor to a particular field when position is not known?

1089

Define cobol coding sheet?

1067

How to receive data passed through jcl parm parameter in a natural program?

1046

Explain how are you going to remove duplicates from the file that is being read?

1081

What is the difference between escape(top or bottom) and escape immediate(top or bottom?

1116

How can we see the copy book length using file-aid?

1019

What are the sub parameters for undo command?

1151

What is the structure and definition for the same?

1068

Un-Answered Questions { IBM MainFrame }

Explain the difference between link and xctl?

1027

What are db2 tables?

1170

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..

8829

what do you mean by the repro command?

1165

Is it possible to code instream data in a PROC?

1399

What is meant by a ‘Transid’ ?

1106

Define floating maps with illustration?

1058

The disp in the JCL is MOD and the program opens the file in OUTPUT mode. What happens ? The disp in the JCL is SHR and the pgm opens the file in EXTEND mode. What happens ?

1616

what do you mean by a upgrade set in vsam?

1130

How to traceback if I am getting SOC7 or SOC4 abend? List down the steps

5432

What are literals?

1185

Which commend used for terminating a browser operation?

1051

How do you eliminate the duplicates?

978

Hello All, We have requirment to Replace BMC Db2 Load product thru CA FAST LOADPlus product. Do anyone have JCL to for FAST LOADPLUS and what all are thing need to take in consideration.

2783

Explain the function of the dd dcb keyword?

1331

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