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 index cardinality?

1068

Define clustered index?

975

What is drda ?

1124

What is the need of running runstats in the test environment?

1082

What is the function of the verb initialize?

1090

Write the difference between hidam and hdam databases?

1015

What is the function of dbctl?

1129

Write about a ‘view’ in brief?

980

How can a like table be created?

995

Write about the self-referencing constraint?

985

Explain database descriptor in brief?

1014

State the maximum value up to which volumes can be inserted to an stogroup?

1057

Explain isolation level?

1117

What will be the result if on size error phrase is declared?

962

Explain delete-connected tables?

1035

Un-Answered Questions { IBM MainFrame }

What is link edit in cobol?

1213

What is qmf?

965

Can we insert update delete in view?

975

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

1045

What is dbrm? What it contains?

1169

I need exexution process for JCL programs

2287

What is the role of data manager in the db2 database?

1111

Explain Introduction abt Ibm framework

2168

Write in brief about clusters?

991

What does runstats do in db2?

1128

How do you concatenate the firstname and lastname from emp table to give a complete name?

1077

What do you mean by monitor block?

1859

What do you understand by jcl?

1061

What is mainframe testing?

1116

we cant write data into file using cl program then what is sndf

1668

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