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

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

TCS,

3 19539

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 103333

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

TCS,

7 73270

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

Infosys, TCS,

3 14930

In vsam why we use export-import utility?

3 17594

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

2 10046

How do you convert flat files to VSAM files ?

EDS, IBM,

5 27050

What is the maximum record length for the VSAM dataset?

Infosys,

7 22377

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

1 6812

What do you mean by dirty read ?

5 15248

What do you mean by RDW in VSAM?

2 11532

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

1 6739

How vsam datasets are cataloged?

Ordain Solutions,

1 6858

What are the types of VSAM datasets?

IBM,

3 9683

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

IBM,

1 6481

Un-Answered Questions { IBM MainFrame }

How to get the ddl of a table in db2?

1127

What is the main function of the sign-on table?

1075

What is a bind in idms?

868

What is bind package and plan in db2?

1053

what is the purpose of coding notify parameter in job statement?

1162

specify the requirements for automatic task initiation. (Mention the control table, it is entries and the corresponding procedure division cics command).?

1150

how do we describe cataloged procedure and an instream procedure?

1077

If DB2 query returns in null value, how do you work with it in PL/1?

2360

What is load replace in db2?

992

what is the use of JCL?

1152

What does the 'cedf:cics' transactions do?

1062

Can the values of alphanumeric be moved to variable numeric?

1090

What does db2 mean?

1013

in options (main) , what is meaning of main . if u not used main what will happen? After compiling, os will not understand where to load and execute from

2182

How to List the Available Tables?

1684

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