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 cics command used to access current date and time?

IBM,

1164

when an xctl is done, does the tranid change ? Is a new task created ? Does it cause an implicit syncpoint to be issued ?

IBM,

1225

what is the most common way of building queue-id of a tsq?

IBM,

1083

which transient data queue support ati?

IBM,

1156

which cics service transaction is used to gain accessibility to cics control tables? Mention the one that has the highest priority.?

IBM,

1184

what is the difference between a return with transid and xctl? For example program. A is issuing return with transid to program b. Program a. Is isssuing xctl to program b?

IBM,

1186

Which are the db2 tools to protect integrity of the database?

IBM,

1120

define cond parameter in jcl?

IBM,

1268

what do you mean by include statement in jcl?

IBM,

1 2251

write a jcl to execute a job by 7:00 am on jan 20,1986?

IBM,

1112

what do you mean by a vsam slot?

IBM,

998

what do you mean by the cobol record key clause in vsam?

IBM,

1018

explain how many ways you can load data in a vsam cluster?

IBM,

1038

what is the meaning of dynamic processing in vsam?

IBM,

1041

what do you mean by a vsam split?

IBM,

1082

Un-Answered Questions { IBM MainFrame }

Mention the types of job control statements?

1174

Can you define ppt and what are its uses?

1069

What is a bind in db2?

1039

What is ibm db2 client?

936

What is an mdt (modified data tag)?

1026

Define primary objective of cics?

1008

What is qsam?

830

What is condition checking in jcl? Is this possible?

1114

What is blu acceleration in db2?

1069

what operation is performed by job statement?

1125

How to find the maximum value in a column in the db2 database?

1076

What is commarea (communications area)?

1007

In the house keeping section of an MVS assembly language program, like the one below STM R14,R12,12(R13) BASR R12,R0 USING *,R12,R11 LA R11,2048 LA R11,2048(R11,R12) .... .... 1. What if BASR R12,R0 IS NOT PRECEDE USING *,R12,R11? 2. USING (base address), REGISTER does USING directive says assembler to treat particular Register as a base register with the mentioned base address..in the above case * i.e current location counter..well if that is the case why we need BASR R12,R0 ? 3. What if I write like STM R14,R12,12(R13) BASR R12,R0 LA R11,2048 LA R11,2048(R11,R12) USING *,R12,R11 there is no address resolution being calculated in both LA statements so is it a right way to set Base register?..will there be any issues with Domain regarding R11 and R12?

1977

List out the three types of page locks that can be held.

1147

How do get the result of your program directly on your pc?

2337

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