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

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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?

990

Using alternate indexes in batch program?

1057

On which dataset you can have alt index?

877

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

1007

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

968

What is the biggest disadvantage of using a vsam dataset?

1091

Using alternate indexes in cics program?

985

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

958

What does the keyranges parameter in define cluster commends do?

907

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?

1062

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

992

What is a base cluste?

1041

Would you specify freespace ce for an esds?

1030

What is a lds (linear data set)?

977

What is speed parameters in define cluster command?

989

Un-Answered Questions { IBM MainFrame }

What is mainframe testing?

1047

What is concurrency?

1173

Can you explain multitasking and multithreading?

1090

Is there a application program coding difference between local and central version mode in idms?

817

Name a few IBM utility programs, and explain its function.

4920

Explain isolation level?

1055

Discuss about changing dataset name in proc.

1192

Can we call instream to catalog and catalog to instream?

1104

Using alternate indexes in cics program?

985

Explain how can return codes be tested before execution of a job step?

1297

Explain what happens when you issue a escape routine in a program? Will there be any compilation /run time erro?

930

What is a db2 schema?

1196

What is cics load command?

1011

Give the definition of COMMAREA ?

1017

Mention some fields that are a part of sqlca.

992

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