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's the biggest disadvantage of using a VSAM dataset?

Anjana, CTS, DSRC, IBM,

8 20429

what's the device independent method to indicate where a Record is Stored?

1 5766

How many times secondary space allocated?

5 10880

what is the RRN for the first record in RRDS?

2 12139

what is a Base Cluster?

HSBC, TCS,

3 10955

If FSPC(100 10 is specified does it mean that both the control interval and control area will be left empty because 100 % of both CI and ca are specified to be empty?

DSRC,

1 8386

What is a Generation Data Group (GDG)?

2 10458

How is a GDG base created?

5 26826

What is model dataset label(Model DSCB)?

1 23857

How are GDGs concatenated?

1 14824

How is a new GDG coded?

2 10202

When should DISP=MOD is used?

TCS,

6 47164

How is a dataset passed from one step to another?

DELL,

2 16370

How are datasets concatenated?

CitiGroup,

3 14237

What is the difference between the JOBLIB and the STEPLIB statements?

3 38254

Un-Answered Questions { MainFrame }

What is the distinction amongst include and copy?

978

What is psbgen process?

1159

What is the abend command?

1030

Can anybody tell what is tool used to generate the list of PROCS used in JCL to generate a PROCTREE

2456

Explain acbgen process?

1098

is there any way to dynamically merge other html scripts into a given html?

1075

What Is The Difference Between Goto & Exsr?

1662

what is externally described file ?

1655

I have program P1 which calls file F1 which has 100 records and following structure 001 .................. 002 .................. 003 .................. 098 .................... 099 ................... 100 .................... Now I want to read these files and write these records in file F2 in following manner. 001 ...... 051 ..... 002 ...... 052 ..... 003 ...... 053 ..... .......... ....... .......... ....... .......... ....... 048 ........ 098 ...... 049 .......... 099 ....... 050 .... 100 ......

12379

a multiple format logical file is also known as?

1086

What is a continuation triple?

Why we have multiple data types in As400 and why we use numeric, packed, decimal, zoned the basic difference between this?

1123

How to define a vsam file in cics getting into cics to define a vsam file.

1158

How would you find out the total number of rows in a db2 table?

1051

in my project..TEST is db2 8.1 version In PROD it is 7.1 if i do REORG in TEST.. can I use the same REORG jcl with out modification in PROD region (this is DB2 8.1 )? if not, what modification i need to do in my REORG control card?

2097

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