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

What is the Purpose of POINTER Phrase in STRING command

3 17063

What does the INITIALIZE verb do?

1 11582

Can you call an OS VS COBOL pgm from a VS COBOL II pgm ?

Microsoft,

3 7811

When would you use in-line perform?

2 6750

How do you come out of an EVALUATE statement?

3 9198

what is the difference between external and global variables?

1 17592

What is file status 92?

3 28283

What is the difference between SEARCH and SEARCH ALL?

Cognizant,

6 14953

comp-3 field occupy?

5 9853

How is sign stored in a COMP field ?

Accenture,

3 24018

What is LENGTH in COBOL II?

CSC,

2 11344

What is the LINKAGE SECTION used for?

4 9266

What is Redefines clause?

8 22246

What are the different forms of EVALUATE statement?

IBM, Micro Labs,

2 15458

Describe the difference between subscripting and indexing ?

2 6526

Un-Answered Questions { MainFrame }

How to compare two files by using sort?

1015

What happens if both JOBLIB & STEPLIB is specified ?

1138

How to code these statements in JCL: CLEANUP INITIAL(NO) RESTART(NO) DYNALLOC(NO) job definition..?

2250

define a output queue?

1579

What is database descriptor?

1017

what the purpose of ovrdta, ovrata keywords?

1951

how can you check for a records existence without causing and i/o (chain/read)?

2081

Can you use occurs in bms map?

1058

Can you explain control variable in online screens?

977

What is amode(31)

1166

HOW to change the coloumns in XREF?

2001

What is FORMAT keyword and its use?

601

What is the difference between cursor stability and repeatable read isolation levels?

1168

What is declare cursor?

1110

What is parallel sysplex?

810

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