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 the difference between external and global variables in COBOL?

Winsol Solutions,

1548

In COBOL programming, what is PERFORM? What is VARYING?

CDC,

1213

What is the maximum length of a field you can define using COMP-3 in COBOL?

UGC Corporation,

1 2090

In COBOL, what is the different between index and subscript?

TryTechnicals Pvt Ltd,

1282

What is inspect in cobol ?

Infosys,

1356

How many sections are there in data division in COBOL?

B-Ways TecnoSoft,

1188

What is the difference between PIC 9.99 and 9v99 in COBOL?

SwanSoft Technologies,

1408

What is the difference between array and a multiple occurrence data structure?

1 2170

What is the purpose of the "N" in the following calculation specification? C KEY CHAIN FILE N 99

1 1814

Which of the following operations does NOT zero the field FLDA defined as 4,0? C MOVE *ZEROS FLDA C Z-ADD *ZEROS FLDA C Z-ADD 0 FLDA C MOVE *ALL'0' FLDA C SUB FLDA FLDA C MOVE '0000' FLDA C CLEAR FLDA C MOVE *BLANKS FLDA

1 1781

What is the purpose of the following? I 'CLOSED' C STAT01 I 'OPEN' C STAT02

1 1722

List the steps/commands necessary to accomplish the following: a. Copy data from the file ORDHDR into file ORDHIST b. The file ORDHIST may or may not exist c. If the file ORDHDR does exist, it may or may not contain data d. The file ORDHIST may or may not contain data, if the file does contain data the old data should be erased

1 1819

What is the purpose of the following? FORDHDR1 IF E K DISK ORDHDRF KRENAMEORDHDRF1

1 1725

What is the purpose of the following C/COPY QRPGSRC, ORDERR

1 1835

What is the purpose of the following FORDHDR1 CF E WORKSTN $2SFN SFILE FMT2

1 1661

Un-Answered Questions { MainFrame }

what is procedure prototype and procedure interface.

1307

Hello, I have 3 years of exp as a mainframes tester in a leading IT company, now am looking to change my company. Could you please let me know, what are the interview questions/topics i should prepare. Your suggestions are truly valuable for me :) Thanks !!

1998

What is consistency token in db2?

1198

what is need of start 0? In steed of

1153

I want to open particular list of members inside pds.Let me know whether below code will work.if not tell me how it works INPUT='DDM.DATASET(AAA*)' X = OUTTRAP(MEMS.)

3278

Is length = 0 sufficient to ascertain that the field has been modified?

1157

What is db2 and what is the use of db2 optimizer?

1118

What is the pcp in the cics?

984

what is the role of the is numeric clause?

1152

what does the opcode free do?

2033

What is a system catalog table in db2?

1248

How to Get Information About the Tables?

1752

What are the benefits of using the db2 database?

1300

What is the Purpose of Pointer in the string?

1127

What is the difference between copybooks and subprocedures in as400?

1417

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