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 maximum number of segment types allowed for a single database?

1122

What information does a dbd contain?

1023

What is meant by bmp mode?

1070

What is dbms in ims?

1060

Explain dbdgen process?

1092

Can we use procopt on pcb and segment field (senseg)?

979

What is a segment in ims?

1011

What is the advantage of dynamic generation of acb?

934

What is dl/i?

1125

What are the two types of fields available in ims db?

1017

What is the maximum of key fields and search fields allowed in a segment?

995

What is the maximum number of pcbs allowed in a psb?

967

What are the processing modes available in ims db?

1074

What are the objectives of dbms in ims?

1084

What is the disadvantage of dynamic generation of acb?

1003

Un-Answered Questions { IBM MainFrame }

What is bind package and plan in db2?

1053

What is bufferpool in db2?

1049

What is frset?

1028

What is the main function of linear dataset?

1085

When a COBOL-DB2 program in PRODUCTION is updating main tables and gone for long run, what have to do?

3579

What do you understand by the term job time – out and how can you overcome that?

1025

Explain the difference between the xctl and link commands?

1110

How does jcl act on a cobol code?

1180

What is the pic clause for the data type of length option field type of data fields?

943

What is db2 optimizer?

1230

What is a bind in db2?

1039

What is explain plan in db2?

989

Explain the maximum of key fields and search fields allowed in a segment?

3209

What is the output of the following command given in tso/ispf terminal?

1020

Can you explain enq and deq used in cics?

1064

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