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?

907

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

1074

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

894

What is cobol coding sheet?

1237

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

980

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?

1076

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

1197

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

1068

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

946

What is a hyperdescriptor?

937

Explain how many work file we can code in jcl?

990

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

966

Explain the address converter?

1011

Un-Answered Questions { IBM MainFrame }

What is a db2 table?

1018

What does the 'ceci:cics' transactions do?

1106

Is it possible to obtain a record from IDMS database without mentioning the record-name itself?

1338

what are the commands used to gain exclusive control over a resource?

1222

What is dbd?

1014

Is there any command to check wether the ps file is in sorted order?

2888

What is difference between static and dynamic call in cobol?

1392

Highlight the points of differences between XCTL and START?

1236

What is mainframe application testing?

1058

Write the code implementing the perform … varying.

1075

What is the physical storage length of the data types: date, time, timestamp in the db2 database?

1160

What is precompiler in db2?

1022

What is cobol coding sheet?

1237

What do you mean by rollback?

991

What is an ook-rec in idms?

875

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