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

IBM MainFrame (5234)
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MainFrame Interview Questions

Questions Answers Views Company eMail

What RCT Entries will you make for a CICS DB2 program??

Accenture,

1 8317

How do we pass parameters into a CICS –DB2 program

Accenture, JPMorgan Chase,

4156

How can we code a program such that we will never get a MAPFAIL error?

Accenture,

1 5684

How many ways to share information between different CICS programs?

Accenture,

3 8232

Generally we check EIBALEN = 0 to decide whether first call or not. If I do not pass any value in the COMMAREA then EIBCALEN will be 0 even on second call. Now how can we say the program is called for the first time or second time?

Accenture,

3 11713

What will happen if some program tries to process a queue on which an ENQ command has been issued by some other program?

Accenture,

2704

If by mistake we MOVE a working storage variable into LINKAGE area. What will happen??

Accenture,

4 20918

What is a PLAN table? How will you use it? Give the various fields of PLAN table?

Accenture,

1 4349

My SQL is not performing well. Describe how will you fine tune it?

Accenture,

1 6662

Can anybody tell what is tool used to generate the list of PROCS used in JCL to generate a PROCTREE

2458

Suppose we have field reference file we were any changes that corresponding Physical file then what will Happen in field reference file??

IBM,

5 10960

write a program to read from a VSAM file , there will be a 5 records to create name. empno. resignation and address to update in a db2 table and call another program using dynamic call to find the matching fields in program 1 to update in db2 table. anybody pls send de program for dis ? thanks in advance...

CTS,

2743

How to resolve deadlock issue

IBM,

5 20133

Trying to help a friend... How do you code screen I/O without a DDS? I know it can be done, because for a short time, I worked for a company that did it. It was just too long ago for me to remember what was involved.

1 5031

How to identify in JCL that an input file is empty without reading it?

L&T,

4 12079

Un-Answered Questions { MainFrame }

Explain adabas basic concepts. Like inverted list, address converter ,data storage?

993

What is the difference between Call and a Link?

1198

I have mainpgm(abc) this is the only cobol pgm(non-db2).And this pgm calling subpgm name "acd" this also only cobol(non- Db)and this pgm calling some other subpgm this pgm has cobol-db2 pgm. 1) IF you calling static mode how to run and how to compile? 2) IF you calling dynamic mode how to run and how to compile? plz suggestion me.

2618

Explain the purpose of the file status clause in the select statement?

993

I would like to know some real time questions.. please any one help me.. If the changes made by you .. lead to system inconsistency how others will know its cause???

2126

In a Natural program i used the below code for report FORMAT LS=132 PS=60 And down the line I want to change either LS/PS like FORMAT LS=120 PS=50, is it possible? How it will work?

1933

we can define the ksds cluster by two ways by using the file-aid or by using the idcams utility. Explain them.

1328

What is catelog procedure and how many catelog procedure to use in one job?

8694

What is the difference between escape(top or bottom) and escape immediate(top or bottom?

1028

What is the use of trt instruction?

1019

So manual and automatic are the connect options for a set. What are the disconnect options?

812

What are types of indexes?

1074

what is *place and *auto keyword in prtf ?plz explain

3162

when can a job time-out occur? How to overcome that?

1289

What parameter directs the output of the job log dataset?

1280

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