MainFrame Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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MainFrame Interview Questions

Questions Answers Views Company eMail

What is the difference between ooRexx and IBM's Object REXX for Windows?

1146

When will a port of ooRexx to "XYZ" be available?

933

What is ENQ?

1134

What is DEQ?

1113

How can tablespace be moved to another dasd volume that is allocated for that tablespace?

1295

Mention the downsides of page level lock.

1221

What is concurrency?

1307

Explain the function of data manager.

1100

Mention a credible reason why select* is never given preference in an sql program that has been embedded.

1251

In case if at some point of time db2 is down, would that impact the pre-compilation process of a db2-cobol program?

1097

Define check constraint.

1135

define clustering index.

1074

List out the three types of page locks that can be held.

1202

Explain about rct.

1132

Explain correlated sub-queries.

1101

Un-Answered Questions { MainFrame }

what will happen if there is no secondary allocation made for datasets?

1165

What is afoper?

914

How many databases are there?

1112

what is program status data structure?

2521

What is comp-1?

1014

what is the necessary keyword needed to scroll subfile records?

1225

How to pass the parameters from jcl to assembler program?

1062

What are types of indexes?

1193

IIN APITUDE THEY GAVE ONLY 10 QUESTIONS.. THEY ARE SIMPLE ONE FROM NUMBER SERIES,BOATS,TIME & DISTANCE,PROFIT &LOSS,FIND OUT THE NUMBER ? 9 25 4 36 81 64 49 AND surveillance SPELLINGS E.T.C

2232

What is the meaning of the enq command?

1148

What is iseries database?

1122

Please tell me how to read the records from a file with load an array of size with error conditions(The logic answer for this question is ARR is array of 99 elements Z-ADD 0 IDX *LOVAL SETLL FILE READ FILE 99 *IN99 DOWEQ *OFF IDX ANDLT 99 ADD 1 IDX MOVE FIELD ARR,IDX READ FILE 99 ENDDO).So,Please give me the complete of this code.

2572

Explain the difference between dfhcommarea and tsq?

1175

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.)

3277

which of the following operations does not zero the field flda defined as 4,0?

1243

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