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

COBOL (1072)
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IMS (143)
IDMS (107)
Natural (81)
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REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
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IBM MainFrame Interview Questions

Questions Answers Views Company eMail

hi. This is Ram.i have one doubt.why can't we display comp-3 variables directly? let me answer quickly plez........

1 5862

In COBOL CALL-CALLING,if a program A is calling 3 sub- programs, dynamically, then it is said sub-programs will always will always in Initial Mode. My question is : Do we need to code CANCEL or (IS INITIAL) for dynamically called sub-programs or it is the property of Dynamically called pgms so every time sub-pgms are called they will be in initial mode. ***This question is only Dynamic call****, Please reply. Thank you in advance.

Wipro,

4 9734

can alternate index use in ESDS since it does not contain primary index? if yes can you explain?

iGate, Temenos,

2 7291

what is the steps followed in EXPLAIN Process or EXPLAIN command. (Explain is for identifying the optimized access path but how or what is the steps for doing the EXPLAIN)

IBM,

4 8956

can alternate index use in ESDS since it does not contain primary index? if yes can you explain?

Temenos,

3 9048

What is data trace system 2.0 used for?

5639

how many members can be created inside a single pds?

8 47837

When we create a physical dataset we specify dcb parameter block size.What is the use of Blocking?

4 7943

In a proc i will concatinate 4 dd statements.i want to overide 3 dd statement through jcl how?

3 7732

We are using 2 files , file one has data, file two is empty.Using jcl how can we find the other file is empty?

CSC, IBM,

9 23638

How to execute step2,step1, step3 if step1,2,3 are in order

CSC,

8 14177

i have a string of 80 chars i want to replace 4th char with "a"?

CSC,

3 9651

how can you copy records present in a flat physical file to a database file(physical file).please explain in rpg400 with a simple example

CTS,

1 5589

How to initialize 20,000 bytes in the Assembler..

Amdocs, IBM,

5 17990

How is Telon(CA-Telon) used to build map?

4610

Un-Answered Questions { IBM MainFrame }

When is inspect verb is used in cobol?

1252

hi.... anybody send real time project related questions & answers whatever will ask in interview plz.....help me? advanced thanks....

2482

when does a dataset go uncataloged?

1302

What are the distinctive features of a ksda, key sequenced dataset?

989

Explain how to move cursor to a particular field when position is not known?

995

kindly specify the pic clause for the following:any bll cell, data type of length option field, hhmmss type of data fields?

1109

What is notcat 2 - gs?

1464

What is phantom read in db2?

1153

Explain how to ftp the natural program to desktop? (From mainframe to pc), is it possible?

1059

Explain the purpose of dd dummy statement?

1209

if we display var1 then what will b displayed in below condition. 77 var1 pic s9(2) value -10. 77 var1 pic s9(2) value -11. " " " -12. " " " -13. -14 ... ... -19.

6579

Can you explain function of iebgener?

1025

how do you code a null statement?

1336

Can you define mapset?

1036

What is Framework & How it work?

2120

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