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 an AICA abend?

IBM, Xansa,

3 33501

What is CEBR?

IBM,

3 15493

Can you have CICS code in a copybook? If yes, what happens during compilation?

IBM,

3 14529

How is the storage determined in the symbolic map, if you have multiple maps?

IBM, Wipro,

2 9091

Which is the program which determines whether a transaction should be restarted ?

1 6076

How do you access the records randomly in TSQ ?

IBM,

2 13573

In an on-line environment, how can you prevent more than one user from accessing the same Transient Data Queue at the same time?

IBM,

2 9527

Mention the option used in the CICS READ command to gain accessibility directly to the file I/O area.

2 8606

What is the content of the PPT entry?

CTS, IBM,

3 13552

What will happen if the TDQ that you want to delete is not in the DCT?

2 10456

What is the ABEND command and when would you use it?

IBM,

2 9371

What are different system tables used in CICS?

IBM,

1 13594

What is the difference between link xctl?

IBM, MBNA,

8 45450

What is the difference between a package and a plan?

Infosys, L&T, Mphasis,

6 51645

How does one bind 2 versions of a CICS transaction with the same module name in two different CICS regions that share the same DB2 subsystem?

2 7771

Un-Answered Questions { IBM MainFrame }

Explain the difference between a schema and a subschema in idms?

898

what is use of linkage section?

1135

What is db2 command?

1097

What is bms map?

1294

what how do you initialize a vsam file before any operation? A vsam with alternate index?

1070

What is the difference between pct and fct?

1301

Can you define path?

1038

What is a db2 collection?

1114

when does a dataset go uncataloged?

1361

what are the codes returned by the ams (access method services) command during the execution in vsam?

1357

What are different data types in cobol?

1401

ther r 2 tables OTTABLE & SALTABLE, add the otamt from OTTABLE to empsal of SALTABLE if eid is matched else add the unmatched from OTTABLE to SALTABLE

2129

What is job control language?

1154

Define cobol?

1487

Define buffer pool.

1107

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