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 usage of comp fields in cobol?

1188

In which area will you utilize 88 level items in cobol?

1165

How you can characterize tables in cobol?

1203

Name the various types of tables spaces.

1094

Name all the file-open modes

1080

How do you create a like table?

970

Explain the meaning of spufi?

1037

In a test environment, is there a need to run a runstats?

971

What is the term “where” for?

1007

What is meant by an isolation level?

1014

What is inspect?

1013

What is meant by a bolt dispute?

1355

List the type of locks and explain each of them.

934

Where is the vsam ksds placed?

980

What is meant by comp-3 and what is it used for?

1037

Un-Answered Questions { IBM MainFrame }

What are the advantages and disadvantages of a hierarchical database?

1144

Name and explain the three location modes?

1362

Explain about different table spaces.

1107

without jcl how to run the batch programs

2535

Differentiate between control interval (ci) and control area (ca)?

1008

What is cics load command?

1073

Explain the difference between a return with transid and xctl? For example program. A is issuing return with transid to program b. Program a. Is isssuing xctl to program b?

1049

Define psb?

1095

Explain the use of DCT ?

1080

What is a hyperdescriptor? How does it work?

1118

Discuss some of the terminology of idms.

926

List the type of locks?

938

What is dclgen (declaration generator)?

1059

What are the different types of PL/1 files?

2174

Explain how to access vsam file?

1089

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