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

Explain what you understand by passing by value.

1157

What rules are to be followed while using the corresponding options?

1071

How did the release of cobol/370 version 1.3 improve the performance of release 1.1?

1083

What is multithreading in jcl?

1470

How to execute 2nd and 4th steps among 5 steps in jcl proc?

1326

Explain the mdt in cics?

1166

Explain the maps in cics?

1176

How to define a vsam file in cics getting into cics to define a vsam file.

1168

How do you use altindxs in batch, cics programs?

1045

What is a ca split?

1082

How do you define an altindx?

1040

What are the advantages of vsam over isam?

1135

What is the use of access method services in vsam?

1060

How does control intervals and control areas related to each other?

1006

How is record management performed in vsam?

1142

Un-Answered Questions { IBM MainFrame }

What does a ROLLBACK do?

1523

Is the primary key a clustered index?

1149

what is search and searchall?what is the diffrence between them?give an best example?

6832

Mention the definition of cobol in varchar field.

1250

Can you explain control variable in online screens?

983

Where is the vsam ksds placed?

980

Explain the function of the terminal control table?

1012

what is DSN parameter and DISP parameter is used for?

1149

Explain how can the attributes of one sms dataset be copied to another dataset?

1217

Explain how do you establish a starting position in a browse operation?

1068

What is control area?

1079

How may sets be ordered?

895

Explain the primary function of the processing program table (ppt)?

996

Explain how and where is the twa size set?

1089

Mention the various locks that are available in db2.

1041

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