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 clustering index.

1030

List out the three types of page locks that can be held.

1149

Explain about rct.

1089

Explain correlated sub-queries.

1033

Mention the location where the output received from explain statement is stored.

1127

What are the uses of db2 optimizer?

1296

Comment whether dclgen is mandatorily used. If not, then what is the point of using it?

1061

Before you give the explain statement, what are the prerogatives?

1041

What is the information associated with sysibm.syslinks table?

1125

Mention the way of highlighting as well as putting a cursor to use in a cobol program.

1077

What is the purpose of using commit?

1100

If the cursor is kept open followed the issuing of commit, what is the procedure to leave the cursor that way?

1148

What is meant by explain?

1133

Define db2.

1119

Highlight all the advantages that are attached to a package.

1119

Un-Answered Questions { IBM MainFrame }

How many sections are there in data division in COBOL?

1136

what does a file status of 02 on a vsam signifies?

1183

What is psb?

1032

Can a CICS code be a part of a copybook? If so, then what are the outcomes after compilation?

1121

How to move a field DT 9(8) of input file to DT 9(8) COMP-3 in output file in ezytrieve? in the output file entire dt is not moved.If any answer plz reply as soon as possible.

2208

Can you explain dfhmdf bms macro?

1061

what do you mean by define model parameter?

1151

Differentiate between control interval (ci) and control area (ca)?

1008

What are the advantages of a hierarchical database?

3294

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

1152

what is the use of outrecord?

2221

What is the main function of key sequenced data set in vsam?

966

What is program reentrance?

1166

On which dataset you can have alt index?

917

What is the difference between escape(top or bottom) and escape immediate(top or bottom?

1029

For More Un-Answered { IBM MainFrame } Questions Click Here