MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

What is the difference between base table and view?

7 33061

I have a KSDS File.I hav a Records like 1,2,3,4,5,6,...100. I want to read using Dynamic mode like from 10 th Record onwards like, 10,12,14,16,18,....60. Waht is the command for this.

CTS,

2 8645

what is the difference between adding keys & constraints into a phisical file

HSBC,

4 11987

what is the difference between adding keys & constraints into a phisical file

HSBC,

6 15896

How we can't update join logical files?

10 25905

what is the purpose of DMPCLPGM IN CL?

IBM, Wipro,

3 19774

How can i write a comp-3 variable into a sequential file should i declara the field in the file description as comp- 3?

1 11285

I want to change the attribute of field or want to add new field in existing PF but condition is format level identifier should not change, is it possible?

Mind Tree, TCS,

9 25680

what is QSAM?use of the QSAM?how it is used?

1 7128

Alt key is used for what type of vsam file

3 7684

How many cluster index can have in a table?

HSBC,

3 7653

what is level 66 means??

7 28149

What is UNION,UNION ALL?

2 13470

What are the different types of VSAM files available?

CSC,

3 12784

What is Control Interval, Control Area ?

L&T,

1 7401

Un-Answered Questions { MainFrame }

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

1223

) How do u handle errors in BMS macro

2111

How to do automated restart when a job abend?

1487

What is the procedure to solve an ASRA ABEND?

1089

System Testing for Mainframe Developers What is System Testing? integration testing ? what's the procedure ..

2147

How to Create a Prompted Query?

1817

Explain how to build up lu 6.2 communication?

1108

What is the maximum value that can be stored in s9(8) comp?

1105

how you will know whether you are in sfldrop or sflfold mode?

1113

What is the purpose of control intervals in vsam?

1058

For rewrite, why is it mandatory that file needs to be opened?

1154

what is the favicon.ico request that my site receives now and then?

1168

Explain the input procedure and output procedure?

966

Define a path?

1146

How do you eliminate duplicate values in db2?

1278

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