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

Explain why do we use file-aid for seqential files?

1072

How to find occurrence of mu and pe fields in a file?

892

What is cobol coding sheet?

1232

Explain is it possible to code goto statement in natural? If yes please provide the syntax of the same?

978

Suppose you are processing an input file in a natural program and you want the program to fail if the file is empty. What command you use in natural to force it to fail?

1071

Explain difference between escape(top or bottom) and escape immediate(top or bottom?

1196

Explain how to ftp the natural program to desktop? (From mainframe to pc), is it possible?

1065

Tell me what type of files we can process thru file-aid?

943

What is a hyperdescriptor?

936

Explain how many work file we can code in jcl?

986

What is the difference between read work file 1 and read work file once? Why we are using work file once?

965

Explain the address converter?

1009

Explain the like inverted list?

950

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

973

Explain how to find occurrence of mu and pe fields in a file?

931

Un-Answered Questions { MainFrame }

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

1049

Where can program checkpoints be stored for use in a restart?

1440

How does jcl act on code(if you take a cobol program)?

1286

How to update physical file using logical file with example?

1058

Explain the difference between dfhcommarea and tsq?

1100

Explain identify whether a call statement is a static or dynamic call?

1006

What is the syntax for creating a table in the db2 database?

1107

how do you reference the fixed unblock file formats from cobol programs

1236

What are the different commands used in idcams for vsam?

1064

how can you check for a records existence without causing and i/o (chain/read)?

2092

What Is Ddm ?

1700

which utility is used to sort a file in jcl?

1220

HOw can I get the negative sign while deduct high value from low value

2255

suppose I have two tables a and b. Both tables are connected with ssn number as foreign key. I want to retrieve a column data from b table. How will you write a query?

975

What is DEQ?

1045

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