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

Accenture,

1 8422

How do we pass parameters into a CICS –DB2 program

Accenture, JPMorgan Chase,

4204

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

Accenture,

1 5755

How many ways to share information between different CICS programs?

Accenture,

3 8382

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 11832

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

Accenture,

2784

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

Accenture,

4 21137

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

Accenture,

1 4449

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

Accenture,

1 6761

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

2511

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

IBM,

5 11160

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,

2799

How to resolve deadlock issue

IBM,

5 20347

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 5157

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

L&T,

4 12226

Un-Answered Questions { MainFrame }

What is runstats utility in db2?

1079

What are some uses of the evaluate statement?

1004

Explain the difference between record occurrence and record type in idms?

943

How can deadlocks be resolved?

997

Explain about maximum displacement?

1111

What are the main control blocks available in ims db?

1155

What is a collection in db2?

1097

What is the need to code commits in batch programs?

1202

how many buffers are allocated to vsam ksds and esds?

1213

i am using non join multiple format my 3 database file is like that pf97 R REC ENAME ETENNO ESTATUS K ENAME pf98 R REC1 ENAME ESAL K ENAME PF99 R REC3 ENAME CRDCARD EID K EID & MY NON JOIN LOGICAL FILE IS ALSO SAME EXCEPT RECORD NAMES BEFORE I TRIED WITH 2 FILES SO ITS SAYS ERROR I.E.(Key field attributes must be same as for previous formats. ) SO I CHANGED KEYFIELD ACCORDING TO PF SO ITS WORKING BUT AFTER ADDING 3 FILES ITS SAYING SAME ERROR . I DONT KNOW I NEW IN AS400 PLLZ HELP ME I HAVE ONE MORE QUE. CANT BE USE DIFFERENT KEYFIELD (NOT ACCORDING TO PF) IN NON JOIN LOGICAL FILE.

1569

how to run batch program without jcl?

11708

Define dynamic processing?

1064

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

1248

Explain the address converter?

1064

Explain the difference between local and central version operating modes?

898

For More Un-Answered { MainFrame } Questions Click Here