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?

946

Define communication area?

946

Define exec cics retrieve?

1134

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

1092

What are the common tables in cics and their usage?

977

Explain the function of the terminal control table?

968

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

1034

What is cics load command?

1014

How can you access esds files from cics?

1056

Explain the difference between physical map and symbolic map?

958

What are the cics commands associated with task control?

963

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

1 1522

What is a cics task?

1019

Explain the different ways of initiating transaction in cics?

916

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

966

Un-Answered Questions { IBM MainFrame }

How does jcl act on code(if you take a cobol program)?

1243

Explain what you understand by passing by value.

1116

a set statement is used to define commonly used symbolic across job steps or procedures. It initializes the previous values in the symbolic names. It has to be defined before the first use of the symbolic names in the jcl. State whether true or false?

1044

What are the different types of table spaces?

955

What is the eib?

989

in my project..TEST is db2 8.1 version In PROD it is 7.1 if i do REORG in TEST.. can I use the same REORG jcl with out modification in PROD region (this is DB2 8.1 )? if not, what modification i need to do in my REORG control card?

2042

Is condition checking possible in jcl? If yes, how?

1237

What is the significance of addrspc parameter in the exec statement?

1035

Explain in detail about buffer manager and its functionalities?

1024

How is a type of file defined in the jcl that executes the cobol program?

1153

List the type of locks and explain each of them.

897

what are the additional information you should give in the dd statement while defining the next generation of a gdg?

951

What is reorg?

1096

What is the cobol picture clause of the db2 data types date, time, timestamp?

1032

How to view db2 table structure?

979

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