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

In the CICS command level all the re-entrancy issues are handled by the System(True or False).

1 3653

In which CICS table would you specify the length of the TASK WORK AREA (TWA)?

IBM, TCS,

3 9205

What are the three BMS options ?

3 6350

What is the difference between the INTO and the SET option in the EXEC CICS RECEIVE MAP command?

1 6517

What are the CICS commands available for program control?

IBM,

1 4569

Once a transient data queue is read, can it be reread?

2 6346

An XCTL uses more CPU time than LINK (True or False)

1 6724

Can you simply check if length = 0 for checking if a field was modified?

IBM,

3 6797

Translation Time is not reduced if the Pre-compilation is done first(True or False).

Kanbay,

1 5163

The error code AEIV?

IBM,

1 9498

What is CECI?

IBM,

5 19387

What is ATI? What kind of TDQ can be used?

IBM,

3 14307

What is the option specified in the read operation to gain multiple concurrent operations on the same dataset?

IBM,

1 6337

List all the CICS tables and explain their contents.

IBM,

3 10248

A mapset consists of three maps and 10 fields on each map . How many of the following will be needed ?

3 8284

Un-Answered Questions { IBM MainFrame }

Which isolation level provides maximum concurrency?

1150

What is access path in db2?

980

What is the function of currentdata option in bind?

1029

Explain about logical data model of idms?

874

What do you understand by psb and acb?

1115

What is bind package and plan in db2?

1051

Write down the divisions of cobol program?

1242

When you specify multiple datasets in a JOBLIB or STEPLIB, what factor determines the order?

1457

What dd statement is used to supply the name of a dataset?

1384

what is swap-in and swap-out?

1093

A dd statement consists of 4 fields. Name them?

1418

What does it mean by Restart and Checkpoint in JCL ? How are checkpoints being taken and what is their usage ? How to use Checkpoint macro on a JOBSTEP ?

9740

What is the function of the verb initialize?

1079

List the different jcl statements that are not permitted in the procedures?

1075

What does db2 blu stand for?

1164

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