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 statistic will tell the DBA how must space can be reclaimed from dropped table spaces on the next reorg run?

1 4443

What are column-name qualifiers used?

1 4400

Explain transactions, commits and rollbacks in DB2.

3 8379

How is a typical DB2 batch program executed ?

1 6712

What information is held in SYSIBM.SYSCOPY?

1 5951

What DB2 Catalog column tell you when an index needs table reorganized ?

1 4809

When can an insert of a new primary key value threaten referential integrity?

Mind Tree,

2 7655

what are the max. & min. no. of partitions allowed in a partition tablespace?

IBM,

2 9087

what's the error code for Unique Index Violation?

2 8447

When do you use the IMAGECOPY?

4 8622

What do you mean by NOT NULL? When will you use it?

3 6702

When would you prefer to use VARCHAR?

3 7882

Explain an outer join?

1 5233

What is the maximum number of tables that can be stored on a Partitioned Table Space ?

IBM,

1 5956

What is REORG? When is it used?

4 10163

Un-Answered Questions { IBM MainFrame }

In which area will you utilize 88 level items in cobol?

1216

Explain in brief how does db2 determine what lock-size to use?

1101

Define an asra?

1098

What is a system catalog table in db2?

1257

Can ESDS files be accessed from CICS?

1264

Define buffer pool.

1107

What is afoper?

923

Can you explain create an empty file by using sort?

1015

What is the mainframe computer?

995

what is the use of outrecord?

2284

Hi pls anybody tell me about " ANALYSIS DOCUMENT PREPARATION AND ESTIMATION OF TASK " (in real time project)."I want to update a sequential file in my project" for that purpose i need both structures i mean analysis document and estimation of task.

2205

by using xpeditor if we want to debug the subpgm, how can you code in x-ped for mai-pgm n sub-pgm ?

2345

Is db2 a programming language?

1111

Explain the difference between and exec cics xctl and exec cics start command?

1241

What types of tables are there in the db2 database?

1115

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