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 commarea (communications area)?

976

Define task work area?

1275

What is the common systems area?

1000

What is journal recovery?

1004

What is the syncpoint command?

1146

Explain the difference between dfhcommarea and tsq?

1040

Define temporary storage?

1011

What are some of the cics commands associated with interval control?

1001

Sync points cannot be requested by the application programs? State true or false

1129

Define the term mro (multi region operation)?

1053

Name the 3 common ways to create maps?

1080

name the command that is used to dump the main storage areas related to a task?

1051

What is the use of mdt (modified data tag)?

1015

What is an mdt (modified data tag)?

984

Explain how do you delete item 3 in a five-item tsq?

890

Un-Answered Questions { IBM MainFrame }

What is the difference between general testing and mainframe testing?

1058

Is it possible using max on a char column?

1100

what is the purpose of coding notify parameter in job statement?

1123

In a Natural program i used the below code for report FORMAT LS=132 PS=60 And down the line I want to change either LS/PS like FORMAT LS=120 PS=50, is it possible? How it will work?

1861

What will happen if we drop the base register in the program which contains only one basereg?

950

Explain processing program table(ppt)?

1094

Explain the maximum number of pcbs allowed in a psb?

3572

How to view db2 table structure?

978

When is inspect verb is used in cobol?

1200

how do you create an alternate index ?

1036

How to Save a Query?

1540

How joinkeys helps in sort?

953

What is cascading rollback?

1157

How do you simulate the explain of an embedded sql statement in spufi/qmf?

1055

What is a segment in ims?

970

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