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 is the difference between TYPE 1 index & TYPE 2 index

IBM,

1 13208

What are the disadvantages of using VARCHAR?

3 15627

What is the purpose of the DSNC transaction ?

1 7580

What are delete-connected tables?

1 4375

What is the significance of the CURSOR WITH HOLD clause in a cursor declaration?

4 30329

What is a correlated sub query?

2 5456

What is read-only cursor?

1 6764

What Utility is used to migrate DB2 from one release to the next?

1 5830

What is Skeleton cursor table (SKCT)?

2 14432

Under what circumstances will DB2 allow an SQL statement to update more than one primary key value at a time?

1 6105

What is the database descriptor?

2 14648

What is the syntax required for the creation of a cursor?

1 9759

What is meant by AUTO COMMIT?

3 10158

What information is contained in a SYSCOPY entry?

2 10004

What is the COBOL picture clause for a DB2 column defined as DECIMAL(11,2)?

Emsang,

5 20538

Un-Answered Questions { IBM MainFrame }

Explain how to initialize a register to 0000?

1008

Can you define cics task?

1106

How to print 10 to 1 if the input have only 10 digit number?

1258

What db2 400?

1174

What are the building blocks used in vsam datasets?

981

Can you define temporary storage?

1129

Define data page.

1059

I need exexution process for JCL programs

2273

what methods are available for persisting records in an idms database?

831

What is the function of currentdata option in bind?

1032

What is a storage group (stogroup)?

1241

What is the usage of open cursor command?

1100

What is the usage of comp fields in cobol?

1181

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

1080

how do you reference the variable block file formats from cobol programs

1246

For More Un-Answered { IBM MainFrame } Questions Click Here