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

Define transient data?

1040

What is dynamic transaction backout?

1135

What is interval control?

1133

Explain how do you establish a starting position in a browse operation?

1067

Explain the difference between link and xctl?

968

Explain the logical message in cics?

1028

What is the pic clause for the any bll cell type of data fields?

1068

Explain the difference between the into and the set option in the exec cics receive map command?

1122

Explain the cics command that is used for reading a record from the tdq?

1006

Explain how do you terminate an already issued delay command?

1004

Explain the significance of rdo?

1085

Explain how to build up lu 6.2 communication?

1034

Explain the purpose of the program list table?

999

Explain the difference between getting the system time with eibtime and asktime command?

1090

What is the pic clause for the data type of length option field type of data fields?

943

Un-Answered Questions { IBM MainFrame }

How scary is it to write code for a bank?

1001

Explain cebr transaction commands?

1073

in options (main) , what is meaning of main . if u not used main what will happen? After compiling, os will not understand where to load and execute from

2190

How converted the natural coding for adabas

3280

what is a base cluster in vsam?

1136

explain in brief why do vsam take more disk space than other utilities?

1096

What are the rules employed while naming the steps in a job?

1141

Is automatic restart possible in jcl? If yes, how?

1116

How many root segments do we have per database record?

1038

Define cics interface block?

996

Define an asra abend?

1079

In COBOL programming, what is PERFORM? What is VARYING?

1152

How can unused space allocation be returned to the system when a dataset is closed?

1496

Is schema the same as database?

1059

Can you tell me how can you find out the # of rows updated after an update statement?

1101

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