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 can a fb file convert to vb file using sort program?

1339

How do you submit a job for execution?

1111

Explain the hierarchy levels in jcl?

1681

What is the use of symbol // in jcl?

1486

Explain dfsort utility?

1343

How do you create a temporary dataset?

1186

Differentiate between the joblib and the steplib statements?

1439

How does the jcl specify the job to os?

1157

How to submit a jcl from cics?

1150

What are some jcl statements that are not allowed in procedures?

1235

Which statement is used to identify the private libraries in job?

1188

Explain the job statement in jcl?

1162

Give the name of some fields form sqlca.

1081

On which levels locks can be applied?

1133

What is dbrm?

1105

Un-Answered Questions { IBM MainFrame }

Explain the difference between physical map and symbolic map?

993

What is alias in db2?

1061

What is the need of running runstats in the test environment?

1076

Explain the job statement in jcl?

1162

Explain the significance of dbid used in adabs?

956

What does the 'cedf:cics' transactions do?

1065

What is ibm db2 used for?

1081

which parameter is used to check the syntax of a jcl without executing it?

1363

What are the pertinent COBOL commands?

3177

What is amode(31)

1174

How to create backup table in db2?

1091

How do you reference the fixed block file formats from cobol programs

1227

Can you explain dfheiblk?

1092

Can you name a few software running under the mainframe?

953

Explain about maximum displacement?

1059

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