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

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

CGI, Xansa,

8 21741

Write the syntax of a two dimensional array?

Honeywell, Xansa,

8 29269

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

IBM, Xansa,

3 22423

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

Xansa,

2 10394

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

Xansa,

6 16906

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

Xansa,

2 7508

What are decleratives in COBOL ?

Xansa,

1 16164

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

Patni, Xansa,

2 7765

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 16025

what is a cataloged procedure ?

Xansa,

1 8481

What is JOBLIB ?

Xansa,

5 14635

What is JCL LIB ?

Xansa,

3 16891

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

IBM, TCS, UST, Xansa,

2 36777

How do you handle empty files in a JCL ?

Wipro, Xansa,

3 17915

I have a JCL which 20 steps. How do I execute 17 th step alone (It should execute only 17ths tep.and it should not execute 18,19,20 steps??

IBM, Infosys, TCS, Xansa, Xchanging,

9 65587

Un-Answered Questions { MainFrame }

) what is the difference between AID and HANDLE AID?

2207

If a ceo wants to see all employees of the company from an online screen. How will be the design of the map from the developer point of view?

1093

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

2793

If I have a view which is a join of two or more tables, can this view be updateable?

1190

how can you detect overflow for a print program that prints multiple lines per cycle?

1820

how to access data held on the jes spool?

1118

Explain the difference between search and searchall?

928

What is link edit in cobol?

1273

What are the main control blocks available in ims db?

1155

What db2 400?

1266

what is match field indicator?

1844

Differentiate between the joblib and the steplib statements?

1541

How many sections are there in data division in COBOL?

1192

What parameter directs the output of the job log dataset?

1333

What is the main purpose of having user catalog in vsam?

1142

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