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 common work area?

990

Define communication area?

996

Define exec cics retrieve?

1185

Explain the difference between and exec cics xctl and exec cics start command?

1149

What are the common tables in cics and their usage?

1015

Explain the function of the terminal control table?

1012

Name the three ways available for a program to position the cursor on the screen?

1091

What is cics load command?

1073

How can you access esds files from cics?

1108

Explain the difference between physical map and symbolic map?

993

What are the cics commands associated with task control?

998

Tsqs can be written in the main storage or auxiliary storage? State true or false

1 1578

What is a cics task?

1062

Explain the different ways of initiating transaction in cics?

950

Explain the difference between temporary storage queue (tsq) and transient data quene (tdq)?

996

Un-Answered Questions { IBM MainFrame }

How to write a IDMS code to find whose employee last name is starting with J and first name starts with H?

1353

have in 100 records in a file i want to read first 3 records and skip next 3 records and agan i want to read 3 records and again i want to skip 3 records... run a loop from record one to 10 evaluate i/3 if comes even then skip else write to output file

1520

what difference exists between control area and control interval?

1044

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

1114

How to check last update on table in db2?

1059

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?

1077

how do you access an uncataloged dataset in a jcl?

1742

What is the difference between Structured COBOL Programming and Object Oriented COBOL programming?

1126

Can we use DISP=SHR in output file in JCL

1421

Explain about LMFREE�free data set from its association with data ID

1632

What is the syntax for seeing the columns and data types of a table in the db2 database?

1169

What are the rules for db2 programming?

1090

What is an ims database?

1146

What are the parameters that are used in creating a gdg?

1221

What is the use of qsam?

826

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