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

Is it mandatory to use DCLGEN? If not, why would you use it at all?

2 9084

What is a composite index and how does it differ from a multiple index?

1 4742

What is an asychronous write?

1 4635

What is correlated subquery?

1 5009

Can DASD types assigned to storage groups be intermixed (i.e., 3350s and 3380s)?

1 4040

What is a precompiler?

2 5949

Where would you find information about the type of database authority held by the user?

2 5617

How do you do the EXPLAIN of a dynamic SQL statement?

2 6188

What will the COMMIT accomplish?

5 7826

What is a view? Why use it?

3 6287

What is sqlcode -811?

Accenture, CTS, TCS,

7 74574

What is an intent lock?

3 10805

what types of copies can be made with the COPY Utility ?

1 4695

What is a synonym? How is it used?

2 5596

what is a collection?

2 5404

Un-Answered Questions { IBM MainFrame }

What is host variable in db2 cobol?

1075

Explain about LMQUERY�give a dialog information about a data set

1444

What is dbd?

1006

What is dclgen (declaration generator)?

1052

Explain the difference between a schema and a subschema in idms?

829

Is the primary key a clustered index?

1141

Explain difference between call and link?

1091

What are the two ways in which dl/i interface can be invoked?

941

What is meant by idd in idms?

929

How to remove the spaces at the end of each record in the output file of variable length, via cobol program?

1166

How to code the db2 queries using rexx?

981

what is the difference between JES3 and JES2?

1130

What is downtime and what might be the reason?

1095

What is the difference between a return with transid and xctl?

1063

ther r 2 tables OTTABLE & SALTABLE, add the otamt from OTTABLE to empsal of SALTABLE if eid is matched else add the unmatched from OTTABLE to SALTABLE

2065

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