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Mainframe Interview Questions


Mainframe Interview Questions

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In which file (sequential, indexed, relative) can all access mode be used (input,output.i-o,extend)? 
Latest Answer: All file KSDS, ESDS,RRDS ...

When executing a CICS program that updates DB2 tables, if the program performs a LINK to another CICS modules and the Database changes have not been commited, will the process Rollback the database changes 
Latest Answer: CICS have special future for data Base updates i.e. TWO FACE COMMIT. On completion of CICS program, syncpoint will execute which will commit the changes from CICS end and request for DB2 Commit. For this question, here there is no explicit DB2 Commit ...

77 COUNT PIC S9(4)V99 VALUE -1234.55What will be output of the statement DISPLAY COUNT?a) 12345Nb) 12345Ec) -123455d) 123455N 
Latest Answer: As the pic clause is display, the answere is a i.e., 12345N ...

If you have 3 different flat files of different logical length then how will you merge them in single flat file? What is the simplest workaround of this problem using sort utility? 
Latest Answer: First of all you cant merge files with different record length. Second if you really want to merge those files you will have increase their length using file aid, copy by 3.3 option, select  the 'T' in the screen then select the length (keep a flat length ...

What does IEB and IEM refer to when it comes to IBM utilities? 

Latest Answer: as X'F1F2F3F4' ...

Latest Answer: The using phrase will be coded along with the call statement in case any literal or address of the value is to be passed to the called program.  ...

If i'm trying to populate an Array with some data, it is giving ABENDU4038.The Array - element (record) size is 70 and the Array Size is 99,999. It is Abending after populating some 10,074 elements 
View Question | Asked by : smitha_bdr

Latest Answer: -805, DBRM not found. Compile the source module again (this internally precompiles and generated the DBRM component). ...
Read Answers (1) | Asked by : SOMASEKHAR

(which is used for insurance business developed by SOLCOP) what are the companies using this 

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