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 usage of open cursor command?

1100

What is db2? Explain.

1044

What is the use of predicate?

1043

What is rct?

1236

What is check constraint in db2?

1091

How can you count the number of rows from a table tab?

1093

Which components manage deadlocks in db2?

1071

What is the physical storage length of time data type?

1129

How many types of page locks can be held in db2?

1044

What is the picture clause of null indicator variable?

1138

Where can you declare a cursor in a cobol-db2 program?

1077

What is concurrency in db2?

1 2203

Which component is responsible for db2 startup and shutdown?

1036

What is data manager?

1051

What is the physical storage length of date data type?

1254

Un-Answered Questions { IBM MainFrame }

What is the best way to code to provide me the info that there are disks in the array failing or failed? How to code? Run in batch?

807

What is mpp mode?

1136

What is the disadvantage of dynamic generation of acb?

1009

We can allocate memory dynamically by using GET MAIN command my question is at what scenario we can't release this memory and reuse this same memory??

3246

Particular area has been affected in cics screen, what is the process to find?

9892

What is db2 bind?

1084

How to List the Available Tables?

1688

What is the use of lds (linear data set)?

1027

Which components manage deadlocks in db2?

1071

What is dl/i?

1133

What are the uses of commit and finish?

892

What is the maximum number of columns in a db2 table?

1285

in ways data can be passed to a COBOL program from JCL?

1225

is it required that primary key values have to be unique? Do alternate key values have to be unique?

1054

How many registers we are using in mvs?

1202

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