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 difference between Plan and Package

Syntel,

1 6004

How do run the JCL which has 25 steps by skipping the following steps 5, 10,15 and 25 without using COND statement

Syntel,

5 10643

file status 00 is checked after opening the file or reading the file

John Deere,

4 8204

how can you save the query in QMF?IS IT POSSIBLE OR NOT.IF POSSIBLW HOW?

Hewitt,

1 5751

How can u know the current date using jcl?

iNautix, Wipro,

2 14063

What is -904 sql code? How to resolve it?

3 45984

What are the common keyword parameters in both job and exec statements

Cap Gemini,

4 14300

When will we need to specify Space parameter ?

Wipro,

3 7696

Can you delete the GDG base without deleting GDG generations ?

Cap Gemini,

7 23106

In how ways you can pass the data from Jcl to cobol ?

Cap Gemini, IBM,

3 19594

What is the maximum data length for Numeric DataType ?

Cap Gemini,

3 9496

01 a pic s9(5) occupies how many bytes ?

Wipro,

9 30197

What is the use of IEBGENER ?

Cap Gemini, Wipro,

2 9405

How can you declare the file ?

Wipro,

1 5097

How many divisions we have in Cobol ?

Wipro,

4 8646

Un-Answered Questions { IBM MainFrame }

In job processing, what happens in conversion stage?

1146

What are the error (ONCODES) codes did you encounter in PL/1 programme?

2858

what do you mean by a upgrade set in vsam?

1015

What is the return codes 0307 and 0326?

889

how do you reference the rrds file formats from cobol programs

1495

i want a program using by if, evaluate , string, unstring, perform, occurs?

4636

In a Natural program i used the below code for report FORMAT LS=132 PS=60 And down the line I want to change either LS/PS like FORMAT LS=120 PS=50, is it possible? How it will work?

1835

Explain the maximum number of fields allowed per segment and what is the maximum number of fields per database?

993

Explain about few error status codes of idms.

835

Explain how can you do the explain of a dynamic sql statement?

1063

Explain how do you terminate an already issued delay command?

959

list the sequence of steps used to achieve modiication in skip sequential mode?

1143

Define the necessity of run stats among the environment test?

928

Why include statement is used in a jcl?

1120

explain how do you define a gdg in vsam?

958

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