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

How do you filter out the rows retrieved from a Db2 table ?

1 9258

What is a clustered index?

1 12436

When will you chose to run RUNSTATS?

1 9382

What does DML stand for and what are some examples of it?

IBM,

3 9664

What is meant by a unit of recovery?

1 6495

What is CHECK PENDING ?

5 19901

What is a thread?

3 8107

What is filter factor?

2 10639

What's the maximum number of volumes that can be added to a STOGROUP?

IBM,

1 9288

What are PACKAGES ?

3 9013

Which catalog tables contain authorization information?

1 6120

Is DECLARE TABLE in DCLGEN necessary? Why it used?

3 9663

How does one remove entries from the SCT02 table?

1 4579

what is the difference between join and union?

IBM,

4 18779

I use CS and update a page. Will the lock be released after I am done with that page?

2 9835

Un-Answered Questions { IBM MainFrame }

What is the use of db2 optimizer?

1109

Can you use occurs in bms map?

1059

What is db2 connect?

1063

Which command is used to connect to a database in DB2 ? Give the Syntax.

1102

What are the different types of condition in cobol and write their forms.

1110

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

1176

How many bytes will a s9(8) comp field occupy ?

1121

How are you going to remove duplicates from the file that is being read?

983

Explain the difference between link xctl?

1002

We can allocate memory dynamically by using GET MAIN command my question is at what scenario we can't release this memory and reuse this same memory??

3241

can we describe the results of opening for input empty vsam files in a cobol program?

1011

what is the use of outrecord?

2210

explain the differences between vsam and non-vsam files

1153

what is the JCL statement consists of?

1183

how to run batch program without jcl?

11536

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