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

List and explain the different type of data structures?

1 1663

What is the difference between access path and Dynamic select?

1 2032

Why would you prefer OPNQRYF than logical file?

1 1782

What the purpose of the keywords FIFO, LIFO, FCFO?

1 1887

What is the difference between regular logical file and join logical file?

1 1942

Distinguish between logical file and physical file?

1 2159

What is field reference file?

1 1850

What is the necessary keyword used in a physical file to refer field definitions from the field reference file?

1 1904

What is the purpose of reorganizing the physical file i.e. , RGZPFM?

1 1971

What is the purpose of CHGPF (Change physical file) command?

1 2184

What is purpose of declarative statement DEFN?

1 1654

What is the purpose of SFLNXTCHG keyword in a subfile?

1 1824

What is the difference between Array and Table?

1 1970

What are the different types of access paths maintained on the file?

1 1701

How can you identify End of file in CLP program?

1 2062

Un-Answered Questions { MainFrame }

Which statement is used to identify the private libraries in job?

1252

how you will know whether you are in sfldrop or sflfold mode?

1111

On what systems PL/1 is available?

1623

the maximum number of subfiles that can defined in a rpg program for one display file is ___ .

3370

is it there an easy way to determine if an html section is available to issue a wrtsection upon?

1025

How to execute stored procedure in db2 command editor?

1113

What are the common vsam error conditions and codes?

1122

Explain the difference between a schema and a subschema in idms?

898

Can I send output of job to my remote device careerride123?

1206

Can you explain primary aspect of cics?

1226

how to write code for singlepage in sqlrpgle with update ?

2891

What is the advantages of using IDMS compared to other database systems?

1463

How to call one program from another program in RPG? please help me with the code

1792

How many maximum base registers we can have in a single program?

1180

Explain the purpose of dd * statement in jcl?

1126

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