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 opcode will be used to test the zone of a character field?

IBM,

1 1853

what the purpose of ovrdta, ovrata keywords?

IBM,

1 2046

what would be the effect on the field where reverse image, underline and highlight display attributes are active ?

IBM,

1 1816

what would be the effect on the field where reverse image, underline and highlight display attributes were active?

IBM,

1 1698

when are the referential constraints executed?

IBM,

1171

when are the unique constraints executed?

IBM,

1184

when do you explicitly open files and close files in an rpg program?

IBM,

1 2180

when do you use f-spec. Continuation line ?

IBM,

1 1827

when is a tag statement used in rpg?

IBM,

2 2351

when would you prefer logical file than opnqryf?

IBM,

1 2596

when would you use or not use this approach?

IBM,

1 1630

when you are defining a flat file in your program in f specs which format will you specify?

IBM,

1 1875

where can you specify an indicator in lokup operation?

IBM,

1 1912

where will control be passed after the execution of the *pssr subroutine if the factor2 of the endsr is blank ?

IBM,

1 1925

which are control break logic indicators?

IBM,

1170

Un-Answered Questions { MainFrame }

How can you access esds files from cics?

1167

How can return codes be tested before execution of a job step?

1543

What is innodb buffer pool?

1146

What is inspect?

1060

What is a mainframe?

1031

What is file information data structure(infds) in as400?

1538

What is the connection string to connect to the DB2 Database ?

1183

What is commit in db2?

1116

What is the purpose of disp parameter?

1185

give an eg of ACQ-(ACQUIRE),BIT OFF,BIT ON,DEALLOC,DUMP,FEOD,FORCE,MHHZO,MHLZO,MHLLZO,MLHZO,REL,RESET,TESTZ,TESTB,TESTN----GIVE SMALL EXAMPLE TO THE OPCODES...TO UNDERSTAND FUNCTIONING...........

3902

what operation is performed by job statement?

1183

) How do u handle errors in BMS macro?

2023

How do you run a COBOL batch program from a JCL? How do you run a COBOL/DB2 program?

1338

What are the uses of db2 optimizer?

1366

What makes vrrds different from vsam?

1310

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