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 compute verb? How is it used?

1192

Explain the configuration section of a cobol program with examples of syntax.

1267

Write a program to explain size error.

1240

What are the various section in data division and briefly explain them.

1255

explain sorting techniques in cobol program?

1248

Explain about different table spaces.

1155

Explain sorting techniques in cobol program? Provide the sort file definition, the sort statement, its syntax and meaning

1149

How are the next sentence and continue different from each other?

1343

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

1276

What is the problem of ordered sequential files access?

1212

Write the code implementing the perform … varying.

1124

how do you reference the variable block file formats from cobol programs

1313

how do you reference the printer file formats from cobol programs

1284

How to remove the spaces at the end of each record in the output file of variable length, via cobol program?

1221

Discuss about changing dataset name in proc.

1296

Un-Answered Questions { IBM MainFrame }

can oorexx run normal rexx programs?

1063

what is DSN parameter and DISP parameter is used for?

1216

Differentiate between the joblib and the steplib statements?

1526

What is the function of entry sequenced data set?

1142

what are the various stages of job processing?

1353

how do you create an alternate index ?

1124

What is db2 connect?

1128

Explain the difference between the xctl and link commands?

1178

How to restart a DB2 program?

1962

What is a db2 collection?

1114

What is null in db2?

1071

What is comp-1 and comp-2?

1283

What is db2 optimizer?

1316

Explain the jcl exec statement?

1207

How do you pull up a query which was previously saved in qmf?

1208

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