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

How we create a tables in DB2 ?Previously client has using 7 letters for user id,now he wants to increase the letters from 7 to 12 for user id.How we can do it?

Wipro,

6 10670

By seeing a program how we findout it is a VSAM program?

TCS,

6 12002

how to submit a jcl by cobol program. clear me with an example.

HCL,

3 18404

Explain about level numbers?

3 17398

Explain about Redefines cluse?

iGate,

3 7165

Q:what is the difference between the variable length and fixed lenght.how it varies in the cobol.

CTS, Wipro,

12 84138

what is the deadlock?

2 6490

what is the difference between SEARCH and SEARCHALL?

2 9953

what is PERFORM? and its types?

7 16328

define comp?

2 7760

what is the difference between comp & comp-3?

4 12106

how array can be declare in cobol?

6 34479

what is the difference between section,paragraph and sentences

4 40529

define sort? and its syntax?

3 8226

what is INPUT PROCEDURE and OUTPUT PROCEDURE?

2 19286

Un-Answered Questions { MainFrame }

What are the distinctive features of a ksda, key sequenced dataset?

951

What is cascading rollback?

1141

what difference exists between control area and control interval?

988

What is basic difference between directory and pds in ibm mainframe?

1130

What is a ci split? What is a ca split?

1128

Can we use procopt on pcb and segment field (senseg)?

935

give an eg of ACQ-(ACQUIRE),BIT OFF,BIT ON,DEALLOC,DUMP,FEOD,FORCE,MHHZO,MHLZO,MHLLZO,MLHZO,REL,RESET,TESTZ,TESTB,TESTN----GIVE SMALL EXAMPLE TO THE OPCODES...TO UNDERSTAND FUNCTIONING...........

3776

What is an instance database?

1012

Can you define mapset?

993

What are the terms cics generally means?

956

why is there no os/2 (ecs) port of oorexx?

940

How many databases can be created inside an instance in db2 ?

987

What is icm instruction?

1027

How can the firstname and the lastname from the emp table be concatenated to generate complete names?

1239

Explain how many work file we can code in jcl?

928

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