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

Under idcams, multiple functions can be executed, each of which returns a condition code. What will be the condition code returned to the operating system?

1025

Using alternate indexes in batch program?

1112

On which dataset you can have alt index?

917

What is the device independent method to indicate where a record is stored?

1049

What is a lds (linear data set) and what is it used for?

1011

What is the biggest disadvantage of using a vsam dataset?

1134

Using alternate indexes in cics program?

1016

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

993

What does the keyranges parameter in define cluster commends do?

953

If fspc(100 100) is specified does it mean that both the control interval and control area will be left empty because 100 % of both ci and ca are specified to be empty?

1098

Is it slower if you access a record through alt index as compared to primary index?

1022

What is a base cluste?

1094

Would you specify freespace ce for an esds?

1088

What is a lds (linear data set)?

1014

What is speed parameters in define cluster command?

1039

Un-Answered Questions { IBM MainFrame }

What is package in cobol db2?

1119

What is length is cobol?

1101

How do you get parameter from JCL to PL1?

2435

What is lock escalation in db2?

1033

State the differences between vsam and non-vsam files?

1055

What do you mean by hierarchical database?

1203

what is a jcl?

1139

Explain the maximum number of fields allowed per segment and what is the maximum number of fields per database?

1062

Can we call instream to catalog and catalog to instream?

1145

How to find schema of a table in db2?

1016

What is the use of disp parameter?

1143

I have to write to a outfile where the number of records in that file should be the header of that file using IMS.. can anyone help me in this issue

2550

What is a region in idms?

895

What is the meaning of the deq command?

1144

Explain the difference between the xctl and link commands?

1116

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