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

how to handle -911 (deadlock) error in a db2 program so that the program will never abend?

IBM,

1093

how would find total records in files using sequential?

IBM,

1049

how do we describe cataloged procedure and an instream procedure?

IBM,

1134

how can we repair a soc-7 error?

IBM,

1089

how are start and xctl different?

IBM,

1015

suppose I have 1000 rows in a db2 table. I want to update first 100 records, how do I do it?

IBM,

1175

how to get the last record in vsam file in cluster? And how can u get the ksds file records into ur cobol program?

IBM,

1027

how can we define a gdg?

IBM,

1015

what optimum values can we find for freespace, ci etc?

IBM,

1070

accept ws-date from date will return the current date?

IBM,

1077

what is the other verb for release and write ?

IBM,

1068

what difference exists between control area and control interval?

IBM,

1108

how can we describe comp sync?

IBM,

1107

what is use of linkage section?

IBM,

1134

what is the meaning of a (new, catlg, keep) disposition mean?

IBM,

1077

Un-Answered Questions { IBM MainFrame }

INCLUDE is used ONLY on MVS/ESA Version 4 or higher systems to name an INCLUDE group. An INCLUDE group is a set of one or more valid JCL statements that are stored together in a JCLLIB data set or a system procedure library, and that are read in and used to replace the INCLUDE statement itself within the job. Any number of INCLUDE statements can be used in a job, but the name field value used on each should be unique within the job. The INCLUDE statements can appear in a job anywhere after the JOB statement, but may not appear between a CNTL and ENDCNTL JCL statement.

2317

Is it possible to create an Instance in DB2 using DB2 Control Center ?

1157

What is plan and package in mainframe?

1007

How do you write from PL/1 code to JCL?

2341

What is a configuration management system, give examples?

1088

What is dbid used in adabas?

1011

What does "using" do?

1122

What is database manager in db2?

1071

Can you explain primary aspect of cics?

1226

Differentiate between the joblib and the steplib statements?

1533

what do you mean by define model parameter?

1231

Explain the mdt in cics?

1238

I have done a start browse on a vsam dataset. Can I do another start browse without doing an end browse?

1143

How can you access esds files from cics?

1167

How to find the number of rows in db2 tables?

1135

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