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

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

How many bytes does a s9(7) comp-3 field occupy ?

922

How many bytes does a s9(7) sign trailing separate field occupy ?

1074

My program has an array defined to have 10 items. Due to a bug, I find that even if the program access the 11th item in this array, the program does not abend. What is wrong with it?

1041

What is the purpose of "A CSRLOC (F1ROW F1COL)"?

1 1515

What happens when we move a comp-3 field to an edited (say z (9). Zz-)?

1350

How many bytes do a s9 (7) comp-3 field occupy?

1 1824

Explain how to differentiate call by context by comparing it to other calls?

1150

What is an in line perform? When would you use it? Anything else you wish to say about it.

1035

How do you code cobol to access a parameter that has been defined in jcl? And do you code the parm parameter on the exec line in jcl?

1162

What is comp-1 and comp-2?

1198

What is the default value(s) for an initialize and what keyword allows for an override of the default?

1171

What is amode(24)?

1204

What are 77 levels used for?

1074

What is the difference between a binary search and a sequential search? What are the pertinent cobol commands?

1076

How do you define a variable of comp-1 and comp-2?

1162

Un-Answered Questions { MainFrame }

how many types of display are available on as/400 for user interaction?

1075

Define an associator in adabas?

903

How to rename a table in DB2 ?

1048

how do u compile rpgle program?

1073

Can I redefine an x(200) field with a field of x(100) ?

1165

What is the meaning of copy idms subschema-binds in idms?

842

How to submit jcl through a cobol program?

1121

How to move a field DT 9(8) of input file to DT 9(8) COMP-3 in output file in ezytrieve? in the output file entire dt is not moved.If any answer plz reply as soon as possible.

2168

What happens in bind step in a db2 program?

939

Mention the downsides of page level lock.

1126

How we will get issues on AS/400 technology ? I mean which issue/Defect Tracking tool is using in all companies when any issue comes? Can anybody explain about the work flow of AS/400 project ? plzzz

1648

What is data trace system 2.0 used for?

5592

Mention the different locking levels that are available in db2.

1102

How to remove the spaces at the end of each record in the output file of variable length, via cobol program?

1127

how do you code a null statement?

1299

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