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 9919

is there any restrictions for unions ?

Patni,

4 9261

can i code union in cobol-db2 pgm ?

Patni,

4 13252

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 8781

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 11000

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 6429

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 28835

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

Syntel,

1 8098

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

Syntel,

2 6380

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 8175

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

Wipro,

2 12526

how can u understand ps and pds from their names ?

TCS,

1 5579

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

TCS,

3 12186

restart logic ?

TCS,

2 7455

what is d/f b/w sysout & sysprint

TCS,

4 16585

Un-Answered Questions { IBM MainFrame }

What is the physical storage length of the data types: date, time, timestamp in the db2 database?

1160

What is the purpose of relative record data set used in vsam?

1097

What is a set in idms?

843

What is RRange and ARange?

2110

what do you mean by a upgrade set in vsam?

1077

Using alternate indexes in cics program?

1016

What is the default value(s) for an initialize and what keyword allows for an override of the default?

1213

How can values be passed from the job stream to an executable program?

1443

Can we use DISP=SHR in output file in JCL

1421

What is bind plan?

1049

What is control area?

1079

OPEN INPUT StudentFile READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ PERFORM UNTIL EndOfStudentFile DISPLAY StudentId SPACE StudentName SPACE CourseCode SPACE YOBirth READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ END-PERFORM CLOSE StudentFile STOP RUN what will be output

2512

What is CICS ?

991

What is cascading rollback?

1214

How can deadlocks be resolved?

938

For More Un-Answered { IBM MainFrame } Questions Click Here