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

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

i created one base gdg with lrecl = 100 , now i need to create versions with different lrecl =150,200 can it be possible to create like tht ?

Patni, Syntel,

1 9925

is there any restrictions for unions ?

Patni,

4 9279

can i code union in cobol-db2 pgm ?

Patni,

4 13266

Suppose a generation of GDG gets created in a particular step of a proc. How would you refer the current generation in a subsequent step? What would be the disposition of this generation now ?

Patni,

4 8797

Size of a column has been changed in DB2 table (Suppose it was of 5 characters and later changed to 4 characters) and forgot to change the DCLGEN in COBOL program, what will happen during the execution of code? If the program Abends then what will be the error? If it doesn't abend then hpw the error can be catched?

IBM,

5 11021

I have a table with 3 dimensions like this : 01 ws-table 04 ws-page occurs 3 08 ws-column occurs 2. 12 ws-record occurs 20 pic x(40). How to code with PERFORM varying with 3 dimension...I forgot..

EDS,

2 6435

I have a JCL with 100 steps. I want run the Alternate steps in the JCL ( Like 2 ,4,6,8 etc.. ). How can I acheive this scenario? If It is by Cond Parameter can you provide the Condition code for that?

Polaris, Tech Mahindra, UST, Wipro,

5 28851

wht do u mean by internal reader in jcl ? wht is the use of internal reader ?

Syntel,

1 8103

wht happens if cond=true ? pls give me with an example ?

Syntel,

2 6394

i have records from 1 t0 100 . i need to open records from 10 to 18 and change the values in tht ? how can i do tht ?

Syntel,

2 8179

I have Job A and Job B. I want to trigger Job B from Job A. Please advise.

Wipro,

2 12538

how can u understand ps and pds from their names ?

TCS,

1 5588

i want to avoid the positional parameter how to code it ?

TCS,

3 12209

restart logic ?

TCS,

2 7473

what is d/f b/w sysout & sysprint

TCS,

4 16601

Un-Answered Questions { IBM MainFrame }

Define the term function request shipping?

1035

what is difference bt COND, REGION & TIME parameters at JOB & EXEC. give an exp.

9112

If we say that bms length of field = 0, then what does that mean?

1268

Can we see the copy book length using file-aid?

915

Explain sorting techniques in cobol program? Provide the sort file definition, the sort statement, its syntax and meaning

1102

Define base cluster?

1017

What is meant by mpp mode?

1115

What is the difference between a binary search and a sequential search? What are the pertinent cobol commands?

1119

Name the command used for terminating a browse operation?

1035

how you will the direct the data to spool using sysout option?

2439

How to fetch 1000 error records from VSAM file(Eg: 1000000 records present) while getting SOC7 abend ?

2484

What is db2?

1186

I have a cobol db2 program(PGM A) where other program (PGM B) will call this program and passes some 50 fields data to PGM A. PGM A has some layout in which it receives the data from PGM B. And this layout has been copied in the linkage section pf PGM A. After getting the data, PGM A writes the data in a flat file in the same layout which it receives from PGM B. PGM B is a simple COBOL pgm. Please provide a JCL to run these programs.

2369

What is the difference between binary search and sequential search?

1099

How to get the last record in vsam file in cluster? And how can u get the ksds file records into cobol program?

1044

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