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(12)COMP-4 field occupy?? a.2 b.4 c.8 d.1 ans with reason please

2 8487

can anyone explain me the concept of COMP-4 PLEASE??

2 5125

How to exclude the duplicate records from two concateded flat files (records from both files must be removed)?

1 5839

How to differenciate the given coding is pseudo conversational? (except EIBCALEN condition)

HSBC,

4 9623

can internal sort be applied to sort ksds files?

1 5487

I have a field with data type X(10). I want to perform arithmetic operation on this field? I tried doing it by moving the value into a numeric field. but it didn't work out. I am getting a S0C7 abend. Pls let me know if there is any way of getting this done?

ADP,

2 5462

1 4510

one physical file can have how many max of logical files? what is the primary file?

Four soft,

3 14080

what is the intractive job? what is the batch job ? how to change the batch job to interactive job?

Four soft,

2 10318

what is the purpus of the chain and setll and setgt ?

Four soft,

2 13019

I have three fields in a Variable VSAM file X(2) Y(10) occurs X times Z(02) Say for the first record X=2 then the length of the file is 2+(10*3)+2=34 second record, x=4 then 4+(10*4)+2=46 If any time if the field x is updated then the total length changes. Is it feasible? Is it

2 4531

There is a variable with value 19446. Requirement is to convert it to 194.46. I tried it by doing divide by 100 and my receiving field data type is 9(03)v99. But the output is 194. I am not getting the decimal value. Could anyone pls let me know how to get this done?

2 6525

how to access the file from prodution from changeman tool and to submit a file to production

IBM,

1 7549

if a file has 1000 recods how copy the records from 1 to 100 records using sort

IBM,

4 8539

WHAT IS NULL INDICATOR ? WERE IS THIS USED? AND IF IT IS USED IN FILES CONCEPT? HOW DO WE USE IT?

IBM,

2 6983

Un-Answered Questions { MainFrame }

What is the use of trt instruction?

1015

what is the other verb for release and write ?

1005

Define transient data?

1037

Does jcl support automatic restart?

1230

What is the maximum number of segment types allowed for a single database?

1127

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

1191

What is the difference between structured cobol programming and object alternativelyiented cobol programming?

1240

which cics command must be issued by the application program in order to gain access to the common work area (cwa)?

1137

how do you create an alternate index ?

1070

What is journal recovery?

1050

Explain how will you differentiate between an internal and an external sort, the pros and cons, internal sort syntax etc

1251

What are the different types of model available in coolplex

1467

What is the as400 called now?

986

Mention the guidelines to write a structured cobol program?

1095

Define buffer pool.

1054

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