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

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

IBM,

1152

what is effect on receive map when

IBM,

1266

mention the option (along with argument type) used in a cics command to retrieve the response code after execution of the command?

IBM,

1182

what is an mdt (modified data tag)? Its menaing and use?

IBM,

1129

what are the differences between temporary storage queue (tsq) and transient data quene (tdq)?

IBM,

1227

what are the differences between and exec cics xctl and an exec cics link command?

IBM,

1299

mention the option used in the cics read command to gain accessibility directly to the file i/o area. (Assume cobol-ii).?

IBM,

1100

what are the two ways of breaking a cpu bound process to allow other task to gain access to cpu?

IBM,

1 1714

what are the commands used to gain exclusive control over a resource?

IBM,

1215

when you compile a cics program, the (pre) compiler puts an extra chunk of code. Where does it get included and that is it called? What is its length?

IBM,

1108

what is the differences between getting the system time with eibtime and asktime command?

IBM,

1136

when an apllication is invoked via the exec cics start command with the from option, how does the application gain access to the common area?

IBM,

1074

which is the cics control program that provides communication services between user written application programs and terminals?

IBM,

995

when a task suspends all the handle conditions via the push command, how does the task reactivate all the handle conditions?

IBM,

1174

which cics command must be issued by the application program in order to gain access to the common work area (cwa)?

IBM,

1133

Un-Answered Questions { IBM MainFrame }

Name the versions of ibm mainframes have introduced in the market?

960

explain the differences between vsam and non-vsam files

1156

What is the maximum number of fields allowed per segment and what is the maximum number of fields per database?

1034

Which component is responsible for db2 startup and shutdown?

1033

State the uses of syspring, sysin, sort fields, sum fields and dummy.

1086

What is the difference between dbm cfg and db cfg file in db2 ?

1531

Define exec cics retrieve?

1175

Suppose you are processing an input file in a natural program and you want the program to fail if the file is empty. What command you use in natural to force it to fail?

1067

How many registers we are using in mvs?

1197

What is qmf?

958

I have a COBOL program that ACCEPTs some input data. How do you code the JCL statement for this?

1190

Explain the purpose of the dd keylen parameter?

1163

The natural file converted to PDF file if Yes then explain ?

3145

How can a stopped job be started again?

1189

Where & How Do You Code Identifier In Jcl?

1281

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