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

Can you explain control variable in online screens?

983

What is the quality process in development?

1086

Can we see the copy book length using file-aid?

906

Explain why do we use file-aid for seqential files?

1073

How to find occurrence of mu and pe fields in a file?

892

What is cobol coding sheet?

1233

Explain is it possible to code goto statement in natural? If yes please provide the syntax of the same?

979

Suppose you are processing an input file in a natural program and you want the program to fail if the file is empty. What command you use in natural to force it to fail?

1072

Explain difference between escape(top or bottom) and escape immediate(top or bottom?

1196

Explain how to ftp the natural program to desktop? (From mainframe to pc), is it possible?

1065

Tell me what type of files we can process thru file-aid?

944

What is a hyperdescriptor?

936

Explain how many work file we can code in jcl?

988

What is the difference between read work file 1 and read work file once? Why we are using work file once?

965

Explain the address converter?

1010

Un-Answered Questions { IBM MainFrame }

What is the difference between "db2ilist" and "db2 get instance" commands in DB2 Database Server?

1272

What is declare cursor?

1123

Discuss some of the terminology of idms.

925

Write a cobol program making use of the redefine clause.

1184

how many buffers are allocated to vsam ksds and esds?

1167

Explain the difference between external subroutine and subprogram?

1226

Is it possible to alter a table – for example adding a column, when another user is accessing or updating some columns?

1082

Explain about cursor stability?

1051

How connect db2 database to datastage?

1243

Explain how can return codes be tested before execution of a job step?

1329

I just know the Panvalet dataset name, i would like to search all the members of that dataset for particular keyword through Rexx. how to achive? please suggest. Is it possible to open panvalet member in browse mode using Rexx? Your help would be appreciated very much. Thanks in advance.

5562

Which dd parameters are required?

1187

What are the 4 fields in dd statement?

1273

what is the meaning of ssrange and nossrange?

1006

What is icm instruction?

1062

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