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

Explain about SYSVAR

1 2379

Explain about User Information

1 2024

Explain about File Tailoring

1 2167

Explain about ISPFTTRC

1 2464

Explain about Internal Sort

1 2034

Explain about Cobol Subroutines

1 2543

Explain about RECORDING MODE Clause

1 2434

Explain about Specifying compiler options in the PROCESS (CBL) statement

1 2729

Explain about CBL/PROCESS statement syntax

1 3083

I have a COBOL main program which is calling sub program, the number of calling parameters used in main program are 4 whereas in sub program it's 5. Sub program is passing 5 parameters back to main program Will there be any compilation error? Or main program parameters displays junk values?

1 2455

i have 10 names in an array and my name is one of them also array is not in sorted order i need to display my name using index how will i do this

1540

What Are Send Map Maponly & Send Map Dataonly ?

IBM,

1215

What's The Percentage Free Space ?

IBM,

1224

What's The Error Code For Unique Index Voilation?

IBM,

1239

I have many files which i am receiving from client everyday. I have one step for every file to check for empty or not. Here client gives 30 files i need to check for every file for empty or not and i need to perform 30 steps. Can I do it in single step. Dynamically i need to change the File name in my step.

1219

Un-Answered Questions { IBM MainFrame }

Can I share my data with other jobs? How?

1117

What is DEQ?

1045

Write the code implementing the perform … varying.

1075

Explain how can the attributes of one sms dataset be copied to another dataset?

1217

Which statement is used to identify the private libraries in job?

1190

What is the advantage of dynamic generation of acb?

934

What is the usage of open cursor command?

1100

What is inspect in cobol ?

1303

1.Is it possible to move the data from 99.99 to 99v99? 2.What is the CICS-vsam Compilation process? 3.In My GDG 5 generation will be there GDG3 got an abend what will happen? 4.In my GDG first generation is +1 And I want to add the new generation what will happen previous generation? 5.How can you give the PIC clause below conditions A). s9 (reddy), B). s9 (5) occurs 5 times? 6.How override the proc from a particular step? and what is symbolic and override Procs?

5812

What is a junction record?

1348

What is a buffer in memory?

1058

What is a db2 table?

1017

Name the parameters which can be used to limit the number of records written to a sysout dataset?

1156

OPEN INPUT StudentFile READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ PERFORM UNTIL EndOfStudentFile DISPLAY StudentId SPACE StudentName SPACE CourseCode SPACE YOBirth READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ END-PERFORM CLOSE StudentFile STOP RUN what will be output

2511

Why is it required to have a keyed directed retrieval?

1025

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