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

How are type 1 and type 2 indexes different?

1013

State the maximum number of tables that can be joined?

986

How is data retrieved from multiple tables using a single sql statement?

1028

Why is free space left in ksds dataset?

1130

What is the importance of common attribute?

1067

What are the different types of table spaces?

987

Explain referential integrity?

1099

How are composite and multiple indexes different?

1002

Can records be accessed randomly in esds?

969

What is the difference between general testing and mainframe testing?

1108

Does qtp tool support mainframe application testing?

1077

What is mainframe application testing?

1049

What is mainframe computer /system?

1019

How jcl is used for testing batch programs?

1275

Can we use DISP=SHR in output file in JCL

1413

Un-Answered Questions { IBM MainFrame }

How may sets be ordered?

887

Explain the different ways of initiating transaction in cics?

943

Explain associator in adabas?

856

How to get the ddl of a table in db2?

1125

what is the probability of a complete system distortion under high end low performing multiprocessor job?

2461

Matching Logic in Jcl not in cobol.Could any one please answer this question

4152

when does a dataset go uncataloged?

1300

How is deadlock resolved?

1144

What is the use of uni-rexx?

930

What is currency in idms?

961

how do you bind the cobol with db2

2787

What does db2 plan contain?

1016

Explain the different system tables used in cics?

1006

Explain ceci transaction commands?

1013

Define exec cics retrieve?

1173

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