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?

1036

What is the quality process in development?

1152

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

965

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

1141

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

950

What is cobol coding sheet?

1303

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

1051

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?

1146

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

1269

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

1173

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

997

What is a hyperdescriptor?

1007

Explain how many work file we can code in jcl?

1049

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

1026

Explain the address converter?

1064

Un-Answered Questions { IBM MainFrame }

What is timing concept in mainframe?

2270

What is a bind in idms?

927

My Question is 1. How to cound no. of records in JCL. Please explain with an example. 2. How to execute only odd steps in JCL? I know EDIT TYPE = Inculde, Step Name = 1,3,5 and COND code for all even step. Anyone knows other than this.

2527

My IMS main progam is calling Db2 subroutine ...Its giving - 923 db2 sql code..so could any one tell how to solve this issue.

3645

What is coalesce in db2?

1190

explain the means of supporting pseudo conversation programming. (Eg. Storing and restoring of states, control flow, error handling)?

1117

Can we update view in db2?

1055

Write about a ‘view’ in brief?

1018

How to fetch 1000 error records from VSAM file(Eg: 1000000 records present) while getting SOC7 abend ?

2548

Explain the contention situations caused by locks?

1149

Is it rquired any server for Ibm framework? Give me list of Ibm framework & recent version IBm framework?

2305

What is an area sweep?

947

What is amode(24)?

1301

What is the purpose of using commit?

1158

How to resolve deadlock issue

20347

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