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

what is the use of IEBGENER utility?

1232

what EXEC statement is and what is the syntax of EXEC statement used in JCL?

1224

what is DD statement is used in JCL?

1253

what is the use of JCL?

1218

Is it possible to code instream data in a PROC?

1399

When you specify multiple datasets in a JOBLIB or STEPLIB, what factor determines the order?

1523

I have a COBOL program that ACCEPTs some input data. How do you code the JCL statement for this?

1268

The disp in the JCL is MOD and the program opens the file in OUTPUT mode. What happens ? The disp in the JCL is SHR and the pgm opens the file in EXTEND mode. What happens ?

1616

How do you run a COBOL batch program from a JCL? How do you run a COBOL/DB2 program?

1332

How do you overcome this limitation ?

1255

What is NOTCAT ?

1384

What happens if both JOBLIB & STEPLIB is specified ?

1209

What does a disposition of (MOD,DELETE,DELETE) mean ?

1195

If I have limited experience with Rexx or it's been a long time since I've used it, what kind of help is available to get me started?

951

Can I combine uni-REXX with a compiled language in my application? What application programming interfaces are available? For example, can I share variables between uni-REXX and a compiled language?

963

Un-Answered Questions { MainFrame }

How to debug a batch job when it is in messagewait(mswg) status. I know the steps for batch ebugging, but im confusing with when we submit any job for batch debug we put in held state. So here also do same thing or any other way?

1356

What is the advantage in De-normalizing tables in DB2?

1240

At what point are extension eliminators mandatory?

1049

seqence numbers in cobol

3167

How can you use dynamic calls in cics?

1109

Explain ims software environment?

1041

what is buffering and how does it apply to vsam files ?

1239

Can you define commarea?

1046

which cl command is used to trap error messages during program execution?

1524

Can one database have multiple instances?

1099

If I have a view which is a join of two or more tables, can this view be updateable?

1190

Explain the advantages of adabas?

1085

How to find out the closest prime number of an input number? I believe it has something to do with SEARCH and COBOL Linear Array.

4213

What is the diff bw PF/LF Name and their Record format name? what is restriction in record format then file name?

3049

how do you reference the variable block file formats from cobol programs

1313

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