MAINFRAME INTERVIEW QUESTIONS AND ANSWERS

MAINFRAME MOST ASKED Job Interview Questions. Read MAINFRAME Interview Questions and Answers for Experienced, Freshers PDF Download.

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What are the different data types available in COBOL?Answer
How do you sort in a COBOL program? Give sort file definition, sort statement syntax and meaning.Answer
What does EXIT do ?Answer
What is the maximum value that can be stored in S9(8) COMP?Answer
What does the INITIALIZE verb do?Answer
How do you define a sort file in JCL that runs the COBOL program?Answer
Can I redefine an X(100) field with a field of X(200)?Answer
What is COMP SYNC?Answer
What is 77 level used for ?Answer
How many Sections are there in Data Division?.Answer
Can I redefine an X(200) field with a field of X(100) ?Answer
What is the maximum size of a 01 level item in COBOL I? in COBOL II?Answer
What is 88 level used for ?Answer
Give the format of USING and GIVING in SORT statement. What are the restrictions with it?Answer
What do you do to resolve SOC-7 error?Answer
How do you reference the following file formats from COBOL programs:Answer
What is level 66 used for ?Answer
What is the difference between performing a SECTION and a PARAGRAPH?Answer
How is sign stored in Packed Decimal fields and Zoned Decimal fields?Answer
What are different file OPEN modes available in COBOL?Answer
What does the IS NUMERIC clause establish ?Answer
What is the use of EVALUATE statement?Answer
How is sign stored in a comp-3 field?Answer
What is the mode in which you will OPEN a file for writing?Answer
How do you define a table/array in COBOL?Answer
What are the different forms of EVALUATE statement?Answer
How is sign stored in a COMP field ?Answer
In the JCL, how do you define the files referred to in a subroutine ?Answer
Can the OCCURS clause be at the 01 level?Answer
How do you come out of an EVALUATE statement?Answer
What is the difference between COMP & COMP-3 ?Answer
Can you REWRITE a record in an ESDS file? Can you DELETE a record from it?Answer
What is the difference between index and subscript?Answer
In an EVALUATE statement, can I give a complex condition on a when clause?Answer
What is COMP-1? COMP-2?Answer
What is file status 92?Answer
What is the difference between SEARCH and SEARCH ALL?Answer
What is a scope terminator? Give examples.Answer
How do you define a variable of COMP-1? COMP-2?Answer
What is file status 39 ?Answer
What should be the sorting order for SEARCH ALL?Answer
How do you do in-line PERFORM?Answer
How many bytes does a S9(7) COMP-3 field occupy ?Answer
What is binary search?Answer
When would you use in-line perform?Answer
How many bytes does a S9(7) SIGN TRAILING SEPARATE field occupy ?Answer
Name the divisions in a COBOL program.Answer
My program has an array defined to have 10 items. Due to a bug, I find that even if the program access the 11th item in this array, the program does not abend. What is wrong with it?Answer
What is the difference between CONTINUE & NEXT SENTENCE ?Answer
How many bytes will a S9(8) COMP field occupy ?Answer