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

which SQL comment successfully removes uncommitted changes from a DB2 database A) rollback B) delete C) drop D) decommit

Accenture, Wipro,

2 12850

how do we do unit testing in mainfrmae. explain step-wise.

IBM, JBK,

2 16774

Can we use redefine clause in occurs clause?

10 24842

What is the difference between write & move in COBOL?

CSC, HHB,

3 14923

What is the meaning of 'TALLING' verb in cobol?

5 16634

What is the meaning of 'Eject' verb in cobol?

TCS, Wipro,

2 28889

How can we pass data from cobol to JCl?

ADP, Amdocs, IBM,

7 48777

How include time & date in the report generation in cobol programing?

2 11454

How does IDMS communicate with CICS?

Covansys, Satyam,

1 5887

What are the pertinent COBOL commands?

Satyam,

3187

What is the difference between a binary search and a sequential search?

10 47096

How can you pass values from COBOL program to non-COBOL programs?

2 7762

How does IDMS insure data integrity?

1 5179

What are the functions like c or c++ in cobol?

2 7148

What is difference between comp & comp-4?

6 22416

Un-Answered Questions { IBM MainFrame }

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

1056

What's The Percentage Free Space ?

1233

What is amode(24)?

1251

Receive consists of buffer option in it. What is the significance of this option?

1054

How is a typical db2 batch pgm executed?

1185

What are the uses of ppt in cics?

996

How to run my rexx exec?

930

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

1153

What is the difference between local and central version operating modes?

1323

Difference between fixed length and variable length records.

855

what optimum values can we find for freespace, ci etc?

1026

what is the difference between JES3 and JES2?

1143

Explain how do you intitiate another transaction?

1077

What is cics load command?

1079

Why is master catalog used in vsam?

1127

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