IBM MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

COBOL (1072)
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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 how can an in-stream dataset be terminated?

1423

Explain the function of //cntl statement?

1244

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

1305

Explain the function of the dd dcb keyword?

1333

Explain the purpose of dd dummy statement?

1281

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

1399

Explain the function of dd name parameter with a 2 part structure; audit.report?

1524

Explain how can the submitting users racf authority be overridden in a job stream?

1198

Name what parameter directs the output of the job log dataset?

1115

Explain how can a stopped job be started again?

1188

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

1154

Define concatenating?

1161

Explain the function of job statement in jcl?

1276

Explain the function of //jcllib statement?

1283

Explain the function of a dd statement?

1283

Un-Answered Questions { IBM MainFrame }

What is the difference between cursor stability and repeatable read isolation levels?

1249

Can an individual step be restricted from using all the jobs allowed cpu time?

1615

Explain about cursor stability?

1113

What is null value in db2?

1080

Can QSAM files be accessed from CICS?

1194

What are types of indexes?

1199

how to refer the data field?

2326

What is the need of base registers in IBM 360/370?

2707

what will happen if there is no secondary allocation made for datasets?

1168

Define RCT.

1272

What is the connection string to connect to the DB2 Database ?

1183

What parameter of the job statement is used to limit the cpu time consumed by the job?

1343

is it necessary that all versions of the gdg have to be of the same record length?

1216

How will you return the number of records in table?

1003

what is utility for parm lib

2427

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