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 the Purpose of POINTER Phrase in STRING command

3 17060

What does the INITIALIZE verb do?

1 11582

Can you call an OS VS COBOL pgm from a VS COBOL II pgm ?

Microsoft,

3 7811

When would you use in-line perform?

2 6750

How do you come out of an EVALUATE statement?

3 9198

what is the difference between external and global variables?

1 17590

What is file status 92?

3 28283

What is the difference between SEARCH and SEARCH ALL?

Cognizant,

6 14952

comp-3 field occupy?

5 9852

How is sign stored in a COMP field ?

Accenture,

3 24017

What is LENGTH in COBOL II?

CSC,

2 11344

What is the LINKAGE SECTION used for?

4 9266

What is Redefines clause?

8 22245

What are the different forms of EVALUATE statement?

IBM, Micro Labs,

2 15458

Describe the difference between subscripting and indexing ?

2 6526

Un-Answered Questions { IBM MainFrame }

when does a dataset go uncataloged?

1300

How can you get the ksds file records into your cobol program?

1093

Explain foreign keys?

1009

Program A (Normal COBBAT) calling a B Program (DB2COBOL, COBBATDB which is using a VSAM file. its a dynamic call. How we will handle VSAM file decleration in our from JCL from where we are running A PGM. And should we have PLAN for A pGM also. if possible can some one post a sample JCL. Thanks for help in advance.

5738

What are steplib and joblib? What for they are used?

1215

What are the common cics service programs and explain their usage?

1023

Can we redefine the field of x(200) to less than 200?

1362

Define declaration generator (dclgen).

1108

What language is db2 written in?

1039

List down the data types in the db2 database.

1112

how do you define single dimensional array and multidimensional array in your cobol?

1086

Explain difference between escape(top or bottom) and escape immediate(top or bottom?

1181

What is ibm db2 client?

934

What are different data types in cobol?

1307

What is the meaning concurrency in the db2 database?

1108

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