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 amode(31)

1124

Explain how will you differentiate between an internal and an external sort, the pros and cons, internal sort syntax etc

1213

What is the difference between a binary search and a sequential search what are the pertinent cobol?

1105

What is a scope terminator give example?

1072

What is the difference between comp and comp-3?

1144

Difference between cobol and cobol-ii?

1212

What are literals?

1090

What kind of error is trapped by on size error option?

1196

What are the different data types in cobol?

1360

Can we redefine the field of x(200) to less than 200?

1332

What is the local-storage section?

1116

What is the difference between perform … with test after and perform … with test before?

1386

What are the different open modes available in cobol?

1167

What is the difference between subscript and index?

1 1715

What is cobol?

1210

Un-Answered Questions { MainFrame }

What is the default access path of a file?

1062

what is difference between cobol and cobol/400

22783

What is the pic clause for the any bll cell type of data fields?

1031

What is the need of a secondary index in IMS?

1040

State the difference between jes2 and jes3?

975

What are the different parameters that are used in vsam?

1121

Explain this error: "all record formats for externally-described file abcd ignored or dropped due to error; file ignored."?

1309

)If there are 10 steps in GDG, if I want to refer the step2 after step5 . what should I do?

1971

What is the purpose of dd dummy statement?

1425

how a data in physical and symbolic map gets treated? Since the physical map is much concerned about the screen alignment and the field positions, how the values entered in the field which has PICIN or PICOUT clause in Physical map gets treated? Does that mean datas recieved or sent to the physical map should be constant? How does the data in Symbolic map gets converted with 5suffix namely F,L,A,I and O. For example EMPNO is treated as EMPNOI, EMPNOO, EMPNOA, EMPNOL and EMPNOF. how does this happen in symbolic map. Please provide your inputs on the above and kindly correct me if I am wrong.

2653

what does defn do?

1036

Explain the different system tables used in cics?

972

what is s000 u4087 error? please give the all error codes in cobol,jcl.

17826

What are the different commands used in idcams for vsam?

1019

What is the information associated with sysibm.syslinks table?

1083

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