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 ?

949

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

1125

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?

1071

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

1 1570

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

1407

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

1 1898

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

1186

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

1076

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?

1203

What is comp-1 and comp-2?

1230

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

1211

What is amode(24)?

1239

What are 77 levels used for?

1108

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

1110

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

1201

Un-Answered Questions { MainFrame }

What is ment by record level identifier?

1142

how do u start your process after conducting impact analysis ?

2125

What are the rules of the move verb?

1269

Explain about base register?

1057

Explain the difference between tsq and tdq

988

What is a bind in db2?

1042

What is the purpose of the chain and setll and setgt?

1045

Define dynamic processing?

1012

What is the as400 called now?

986

Is it possible to alter a table – for example adding a column, when another user is accessing or updating some columns?

1081

Mention the location where the output received from explain statement is stored.

1127

what is the purpose of ovrdta and ovrata keywords ?

1513

what do you mean by a vsam slot?

1003

Explain how do you dynamically set the cursor position to a specific field?

1067

Explain delete-connected tables?

1027

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