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 does mvs stand for?

IBM,

1 2068

when does a dataset go uncataloged?

IBM,

1361

what are the ways of passing data to a cobol program from jcl?

IBM,

1 2495

which parameter is used to check the syntax of a jcl without executing it?

IBM,

1428

what is use of dcb parameter in dd statement?

IBM,

1351

what is use of space parameter in dd statement?

IBM,

1335

which parameter is use to declare the name of dataset in dd statement?

IBM,

1327

a jcl has 2 steps. How to code the jcl such that if step1 abends, then step2 runs. Else, job terminates with step1?

IBM,

1 2707

what disp parameter we mention for creation of temporary dataset so that we can use it in later steps?

IBM,

1290

what are the various stages of job processing?

IBM,

1355

which statement is used to end the in-stream procedure in a jcl?

IBM,

1 2014

a set statement is used to define commonly used symbolic across job steps or procedures. It initializes the previous values in the symbolic names. It has to be defined before the first use of the symbolic names in the jcl. State whether true or false?

IBM,

1142

what happens in execution stage in job processing?

IBM,

1202

when can a job time-out occur? How to overcome that?

IBM,

1356

in a jcl, a large volume dataset is loaded to a table using bmcload in step1 and an image copy of the loaded table is taken using bmccopy in step2. Step2 abends because the image copy dataset cannot hold the volume of the table. How can this be rectified?

IBM,

1358

Un-Answered Questions { IBM MainFrame }

Can the values of alphanumeric be moved to variable numeric?

1146

What is inspect in cobol ?

1359

What is link edit in cobol?

1271

How does db2 sample database connect?

1098

What kind of error is trapped by on size error option?

1299

How would you understand error(execution phase)?

1330

can you change the attribute in mapset? if so how?

2225

how to initialize a register to 0000?

1218

What is the function of dd name parameter with a 2 part structure; audit.report?

1332

What is commarea (communications area)?

1069

Differentiate cobol and cobol-ii. (Most of our programs are written in cobolii, so, it is good to know, how, this is different from cobol)?

1177

Db2 what is the difference between a package and a plan. How does one bind 2 versions of a cics transaction with the same module name in two different cicsregions that share the same db2 subsystem?

1182

Why is free space left in ksds dataset?

1207

Explain How will you the specification of database file?

980

What does the 'ceci:cics' transactions do?

1169

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