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 difference between COMP & COMP-3 ?

2 30796

What was removed from COBOL in the COBOL II implementation?

2089

What will happen if you code GO BACK instead of STOP RUN in a stand-alone COBOL program i.e. a program which is not calling any other program ?

3 15527

How many sections are there in data division?.

Amdocs, TCS,

10 28041

What is the difference between NEXT SENTENCE and CONTINUE?

Mphasis,

2 14133

Can you REWRITE a record in an ESDS file? Can you DELETE a record from it?

ABC, IBM, Mphasis, Wipro,

6 26732

What is the maximum length of a field you can define using COMP-3?

Complex System, Infosys,

4 37286

How do you define a variable of COMP-1? COMP-2?

3 18003

What is the difference between comp and comp-3 usage? Explain other COBOL usage?s.

IBM, Xansa,

3 37143

Explain the difference between an internal and an external sort, the pros and cons, internal sort syntax etc.

3 13372

What do you feel makes a good program?

2 6216

What are the different data types available in COBOL?

4 11232

Can JUSTIFIED be used for all the data types?

3 10693

What is the linkage section?

4 9773

What is Static and Dynamic linking ?

3 11205

Un-Answered Questions { MainFrame }

Explain the difference between using the read command with into option and set option?

984

which type of object is used in db2/400?

1008

What is monosysplex?

733

What is a set in idms? What pointers are required, what are possible? How may sets be ordered?

803

how can you check if a file is empty using jcl?

1361

what is the difference between COBOL2 AND COBOL390?

2999

How scary is it to write code for a bank?

957

what is amode(24), amode(31), rmode(24) and rmode(any)?

1102

What is qsam?

794

What is the diff bw PF/LF Name and their Record format name? what is restriction in record format then file name?

2951

What is the purpose of having vsam data space?

917

What will happen if we drop the base register in the program which contains only one basereg?

940

Name the cics command used to access current date and time?

1070

What are the prerogatives?

1028

When do you specify the isolation level?

979

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