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 are differences between COBOL and java ? why we are giving more preference to COBOL ?

3 19584

How to resolve the soc4 & soc7 other than following answers. Soc4 can resolved using mispleed dd name and dd name is not matching with file and soc7 check the sysdump and copy the offest address then correct it in the program.

ADP, Amdocs, Cap Gemini, Keane India Ltd, Super Value, TCS,

10 103461

How to resolve the -305 error code in DB2? And also please let me know, how to resolve the db2 error codes.

TCS,

7 73355

What is the difference between CI( Control Interval)and CA (Control Area)?

Infosys, TCS,

3 14987

In vsam why we use export-import utility?

3 17638

What is the maximum no. of records that can be allowed in VSAM ?

2 10081

How do you convert flat files to VSAM files ?

EDS, IBM,

5 27130

What is the maximum record length for the VSAM dataset?

Infosys,

7 22451

What is the procedure for running the batch job in mainframe?

1 6840

What do you mean by dirty read ?

5 15312

What do you mean by RDW in VSAM?

2 11576

While designing vsam files,what is the best way to choose control interval size for the data and the index?

1 6769

How vsam datasets are cataloged?

Ordain Solutions,

1 6887

What are the types of VSAM datasets?

IBM,

3 9739

How are records stored in an ESDS, entry sequenced dataset?

IBM,

1 6511

Un-Answered Questions { MainFrame }

What are Naming Conventions in QMF?

1844

How to receive data passed through jcl parm parameter in a natural program? How data definition is defined in the program?

1099

Which isolation level provides highest data integrity?

1135

What are literals?

1158

what is a physical file?

1825

What is the function of logging in the db2 database?

1134

Explain the address converter?

1025

Why cursor is used in db2?

1046

What are fillers? What is the actual use of fillers? With mall/simple example?

1029

What is db2 optimizer?

1265

What is the difference between ooRexx and IBM's Object REXX for Windows?

1106

Explain the function of the load command?

1150

Before you give the explain statement, what are the prerogatives?

1060

What is jcl in mainframe, and how many types of jcl statements are there for a job?

1216

can you have multiple key lists for a single file ?

1713

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