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

if time parameter is not coded on the job card and job step then what is the default time assigned to the entire job and for each step in the job by the systyem ?

ITC Infotech,

2 8883

what is the use of temporary files?

Hexaware,

5 12676

how do u see jobs submitted before ur job ?

1 5349

I had Records in file Like this Company Code IBM 2 IBM 1 IBM 4 WIPRO 3 WIPRO 2 WIPRO 9 TCS 4 TCS 6 TCS 3 i want the record of every company with highest code How can i do that?

Wipro,

3 10142

if i am having a cics,vsam and db2 programs with each functions and i want that each function on screen?

iGate,

2259

what is the difference between return code and maxcc?

iGate,

2 16812

I need to compare two VSAM files, both having 'number' as key. If there is a matching record, write the data into another VSAM file. How will it be possible.

DSRC,

1 9846

if someone is using my file,how can i find which user id is using?

4 8714

I am having one step in my jcl.in that step,i am calling one proc.In that proc,i have 10 steps.i want to call a particular step in that proc without writing any new jcl ike iebedit utility...

Satyam,

2 8166

How to use COND Parameter in jcl

NIIT, Wipro,

4 11423

PLAN IS EXECUTABLE AND PACKAGE IS NOT EXECUTABLE . THEN WHAT IS THE USE OF PACKAGE?

Tech Mahindra, Wipro,

2 16118

WHAT IS MEANT BY COMMIT COMMAND?

Wipro,

7 11425

HOW CAN YOU VIEW LAST 10 DATASETS CREATED BY YOU?

2 5461

a input file contains 1000 records, how to move the first 500 record into one out put file and how to move to second 500 records to anothere output file

ITC Infotech,

6 32234

A. Job Abended in STEP03. Now run job again to execute STEP03, STEP04 (STEP01,STEP02 should not execute again)

Cap Gemini, CSC, Xchanging,

3 9709

Un-Answered Questions { IBM MainFrame }

What does a COMMIT statement do?

1384

Explain the contention situations caused by locks?

1070

When you are working with the project.. once your coding is over what will u do? where u r maintaining your CR(change request) what is the format what are the documents u need to prepare while testing?

1999

Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.

2416

What will be the result if on size error phrase is declared?

950

Particular area has been affected in cics screen, what is the process to find?

9883

What parameters are used to control the free space in DB2?

1056

Name the command used for terminating a browse operation?

1025

How do I connect my db2 database to ibm?

1046

What is the pic clause for the hhmmss type of data fields?

930

What is schema in db2?

1019

Explain the difference between using the read command with into option and set option?

1022

Whats the difference between search & search ALL?

6521

Define cics interface block?

993

can anybody post me about file-aid and changemen tools pls and give me reference if any mainframe guys are there

2470

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