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

How can we find out wether to declare the data items like Integer, Char,Comp? If comp types how can we decide wether it is Comp and Comp3.How it is? Please Explain... Cheers.

Syntel,

1 6491

Write a program to concert an Indexed file into Sequential file?

Covansys,

1 5955

I have a sequential file. How do I access a record in this sequential file randomly in my program ?

CGI, Xansa,

8 21453

Write the syntax of a two dimensional array?

Honeywell, Xansa,

8 29062

I have a sequential file of 100 records. How do I load the records into a two dimensional array ?

IBM, Xansa,

3 22269

What are subroutines ? and how do we pass data to the sub routines?

Xansa,

2 10270

Should I use STOP RUN in the sub program??why?

Xansa,

6 16609

should I use Go back in the main program ? Yes we can use Go back in main program as well.

Xansa,

2 7417

What are decleratives in COBOL ?

Xansa,

1 16070

Have you code any new programs in COBOL ? What is the functionality of the programs?

Patni, Xansa,

2 7638

What is a Proc ? why do we go for a Proc ? What are the types of procs?Can we have nesting in Procs ?

Xansa,

9 15660

what is a cataloged procedure ?

Xansa,

1 8334

What is JOBLIB ?

Xansa,

5 14431

What is JCL LIB ?

Xansa,

3 16754

what are the symbolic parameters? why do we use symbolic parameters ?

IBM, TCS, UST, Xansa,

2 36618

Un-Answered Questions { IBM MainFrame }

What is frset?

1032

What is database manager in db2?

1023

what do you mean by a shareoptions parameter (shr) in define cluster command?

1311

Explain about LMFREE�free data set from its association with data ID

1632

what is the other verb for release and write ?

1006

write a cobol logic. i have file that has 10 records .1 record go to first output file and second record goes to 2 output and etc

1242

what is DSN in JCL and what are the parameters to declare the DSN?

1199

explain how can you initialize a vsam file before any operation?

1101

what is a jcl?

1139

How do you submit a job for execution?

1111

Is their any limit for data sets?

1188

Explain the significance of rdo?

1085

the dfhcommara is used to pass information from one application to another. What are some other ways that this function can be accomplished?

1155

How do I import a csv file into db2?

991

Can I redefine an x(100) field with a field of x(200)?

966

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