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

COBOL (1072)
JCL (1031)
CICS (755)
DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
ADABAS (26)

REXX (60)
Assembler (68)
CLIST (6)
QMF (32)

MVS (25)
OS390 (10)
OS 2 (7)
VSAM (319)

IBM MainFrame Interview Questions

Questions Answers Views Company eMail

I have 2 steps in my exec statement , in first step I am creating a gdg, and the output of this step is going into second step as a input, and this second step is abended , now how could i approach in this case.

Bank Of America,

5 13618

I have a File that has duplicate records. I need only those records that occur more than thrice.

3 13546

Suppose I have a file with three fields with data in the following format 1. empid - S9(4) COMP 2. empname - X(20) 3. empsal - S9(5)V(2) COMP-3 If I view this file, it will not be in a readable format. How to display the empid and empsal fields in a readable format without using COBOL program? What kind of SORT card will have to be coded?

4 9829

Is there a way to check for an empty file in JCL other than using IEBCOMPR and the command PRINT COUNT(1)?

8 27956

Can comments be specified at the very beginning of a jobcard? Will the JCL execute?

3 7935

How to display the index.(displacement from an array)

IBM,

4 17193

How to define the a field which accepts value till 99999.99 in db2

3 8760

1) What is ONCODE (Return code) in PL/1? 2) How to handle the ONCODE in PL/1? Please give me some examples?

IBM,

1 7899

How many steps we can overide in the proc's?

CS,

2 7238

How to retain the Duplicates in the one records?

CS,

3 10207

Hi, I want to create alternate index on VSAM file.my file structure is ex: RoomID pic x(7) R000001 Floor pic a((6) First RoomNo pic x(2) FA1 Occupied(yes/no) pic a(3) Yes Occupied Batch pic x(10). Maths i want to create alternate index on floor,roomno fields.can i create alternate index on both the fields.and tell me how to create.

1 6188

How would I code JCL to copy a gdg data set G001v00 and create a gdg Data set G001v01

2 10480

How to overide the symbol parameter in the jcl ?

UST,

3 10084

I have three files for one step i need to override the third file how to do that in jcl?

UST,

1 9212

How to retrive the 9th records out of ten records using the cobol program ?

UST,

3 10123

Un-Answered Questions { IBM MainFrame }

What is non-conventional programs?

1093

write a jcl to execute a job by 7:00 am on jan 20,1986?

1116

Can we see the copy book length using file-aid?

916

What is buffer pool?

1111

what is the cics command used to access current date and time?

1175

What is explain plan in db2?

1007

What are the key features of adabas database system?

1004

What is the physical storage length of time data type?

1138

what methods are available for persisting records in an idms database?

849

Explain how pa key is different from pf key?

1184

Describe the uses of ams?

1014

input= ,,,, mainframe training ,,, hyderabad .... location.... output1=$ mainframe training in hyderabad location$ output2=**** mainframe training in hyderabad location ****. In this pgn when we give input considering the spaces the output is displayed in this format.Like in the place of ,,,, $ should be displayed likewise.So please helpmeout.

2230

With the use of an alternate index, how is a VSAM file accessed?

1101

I would like to know some real time questions.. please any one help me.. If the changes made by you .. lead to system inconsistency how others will know its cause???

2136

What are the access modes of START statement?

1280

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