COBOL Interview Questions expected in a Mainframe Interview.
Please use the comment section to answer.
- Explain what is the difference between WRITE and MOVE in COBOL.
- What are the two COBOL verbs that are used in data division?
- What is the meaning of 'TALLING' and 'EJECT' verb in COBOL ?
- Without execution COBOL program how to see output?
- How to rename input filename and outputfile name in COBOL?
- What are the different data types available in COBOL? Explain in brief.
- How do you submit JCL via a COBOL program ?
- Describe the difference between sub-scripting and indexing ?
- Can you use the Redefine clause in File section, if yes at which level number ?
- What is the maximum size of the variable length record?
- What is the Importance of GLOBAL clause according to new standards of COBOL?
- What is the Purpose of POINTER Phrase in STRING COMMAND?
- Can you describe in detail about the differences between COBOL and COBOL II ?
- What do you mean by COMP SYNC in COBOL?
- How to execute a set of JCL statements from a COBOL program?
- Can you describe in detail about the difference between External and Global variables ?
- What will happen when we move a comp-3 field to an edited (say z (9). ZZ-) ?
- What divisions, sections and paragraphs are mandatory for a COBOL program ?
- What is the difference between Structured COBOL Programming and Object Oriented COBOL programming ?
- What is the difference between a subscript and an index in a table definition ?
- Can you describe the differences between sub-scripting and indexing ?
- What is the difference between index and subscript in COBOL ?
- What do you mean by Redefines clause ?
- How many sections are there in data division in COBOL?
- How do you code COBOL to access a parameter that has been defined in JCL ? And do you code the ARM parameter on the EXEC line in JCL ?
- What do you feel makes a good COBOL program ?
- What is the difference between Static call & Dynamic call in COBOL?
- Can you describe in detail about the advantages of REDEFINES clause ?
- What care has to be taken to force program to execute above 16 Meg line ?
- Explain the main difference between SEARCH and SEARCH ALL ? Which one is more efficient ?
- Describe the best guidelines that should be followed to write a structured COBOL program?
- What is Pic 9v99 Indicates in COBOL ?
- In an EVALUATE statement, is the order of the WHEN clauses significant ?
- Explain what is the difference between PIC 9.99 and 9v99 ?
- What is the difference between a DYNAMIC and STATIC call in COBOL ?
- Explain what is the default value(s) for an INITIALIZE and what keyword allows for an override of the default. ?
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