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 sqlca and why is it needed in any cobol-db2 program?

1 1678

When is inspect verb is used in cobol?

1184

What is the difference between goback, stop run and exit program in cobol?

1525

What is distributed relational database architecture? And components?

936

Explain ibm z?

942

What is difference between static call and dynamic call?

971

What is database descriptor?

972

How do you find whether any generations exist under a gdg base?

987

Can we give +2 instead of +1 while creating a new gdg file?

913

How joinkeys helps in sort?

936

Can you explain referential integrity?

933

How to find all duplicate records?

916

Can you define notcat 2?

996

What is the difference between hidam and hdam databases?

915

Can you define foreign keys?

998

Un-Answered Questions { IBM MainFrame }

Name and explain the location modes?

831

Categorize the mainframe manual testing?

949

How can the disposition of sysout datasets be set for an entire jobstream?

1280

Can records be accessed randomly in esds?

916

What is cursor in dbms?

1012

What is Comp-2?

1064

how do we describe cataloged procedure and an instream procedure?

1019

What is meant by bmp mode?

993

What is the best way to code to provide me the info that there are disks in the array failing or failed? How to code? Run in batch?

756

What is the function of the dd mgmtclas keyword in sms datasets?

1183

What is the binary search?

899

Name the two types of transient data queues?

1004

How are type 1 and type 2 indexes different?

968

What is afoper?

820

What are union and union all?

925

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