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 a CI, control interval?

3 6923

What are the distinctive features of a ksds, key sequenced dataset?

2 7218

What is a CA, control area?

1 5242

What is a sequence set?

1 5220

What is the index set?

1 5510

What is a cluster?

2 5756

What is the catalog?

1 5062

What is an alternate index?

1 4895

What is a path?

1 5067

What is the upgrade set?

1 4831

What is free space?

1 4344

What is a VSAM split?

2 21548

What is the base cluster?

CGI,

1 10988

Do primary key values have to be unique? Do alternate key values have to be unique?

1 7921

In the COBOL SELECT statement what is the ORGANIZATION for a KSDS?

4 13300

Un-Answered Questions { IBM MainFrame }

On which dataset you can have alt index?

924

Explain the purpose of dd dummy statement?

1230

How can you find out the # of rows updated after an update statement?

1117

Explain the logical message in cics?

1041

) How do u handle errors in BMS macro?

1982

Ap wkur,=p5 where wkur is a label?

1160

What is db2 plan table?

1054

what u mean by csrloc and rtncsrloc in rpgIV in as/400.Give an eg? to do...give some coding...what is row no and column no ???..if possible...give a no of lines coding....please

4456

which utility is used to sort a file in jcl?

1233

Explain in DD statement what is the use of DCB parameter?

1153

How dummy is used in jcl?

1158

What is the function of job statement in jcl?

1104

What is the use of uni-rexx?

946

Explain difference between call and link?

1112

What do you mean by cursor?

995

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