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IBM MainFrame Interview Questions
Questions Answers Views Company eMail

How do you handle empty files in a JCL ?

Wipro, Xansa,

3 16000

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 61576

What is a GDG? Why do we go for a GDG ? utility used to create GDG?

Xansa,

3 10774

What is a MODEL Paramater in GDG ?

Xansa,

2 7898

GDG Create syntax ?

Xansa,

4 15026

Max generations in GDG??

Xansa,

15 20639

I have 5 generations in my GDG. How do I code in the JCL to consider all the 5 versions of the GDG ?

Xansa,

5 20683

What is SORT ? How do we eliminate duplicate records ? How do I select some records using SORT ?

GE, Xansa,

9 34510

what is XSUM in some fields= none, xsum ??

Xansa,

7 66385

what is reuse parameter ?

Polaris, Xansa,

3 27102

What is VERIFY command ? when do you use this command?? What actually it does ??

Xansa,

2 29256

Create syntax for a VSAM file ?

Xansa,

2 23065

How did you refresh a VSAM file and how frequently you do it ?

CSC, IBM, Patni, Xansa,

3 9946

How do you prepare a COBOL + DB2 program from coading till execution ?

Amdocs, Xansa,

1 9755

what are the frequent DB2 abends did you encounter in your programs ?? What are different SQL abends ??

Xansa,

4 12274

Un-Answered Questions { IBM MainFrame }

What is the difference between hidam and hdam databases?

538

What is the maximum number of columns in a db2 table?

723

How is a typical db2 batch pgm executed?

638

In the house keeping section of an MVS assembly language program, like the one below STM R14,R12,12(R13) BASR R12,R0 USING *,R12,R11 LA R11,2048 LA R11,2048(R11,R12) .... .... 1. What if BASR R12,R0 IS NOT PRECEDE USING *,R12,R11? 2. USING (base address), REGISTER does USING directive says assembler to treat particular Register as a base register with the mentioned base address..in the above case * i.e current location counter..well if that is the case why we need BASR R12,R0 ? 3. What if I write like STM R14,R12,12(R13) BASR R12,R0 LA R11,2048 LA R11,2048(R11,R12) USING *,R12,R11 there is no address resolution being calculated in both LA statements so is it a right way to set Base register?..will there be any issues with Domain regarding R11 and R12?

1525

What is view db2?

622




What is a ci split?

550

What is db2? Explain.

601

What is condition checking in jcl? Is this possible?

622

How can you get the ksds file records into your cobol program?

639

Explain the configuration section of a cobol program with examples of syntax.

655

What is a mainframe?

541

Explain how to initialize a register to 0000?

585

What is a segment in ims?

585

Can you define cics task?

628

Mention the guidelines to write a structured cobol program?

614

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