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

Can we move SPACES to numeric field and ZEROES to alphabetic field? If yes what are the way doing this?

T systems,

6 44938

What will happen if we generate GDG (+2) version without generating (+1) version?

IBM, T systems,

2 20404

How many maximum number of procedures can we write in one COBOL program?

5 10631

Can we MOVE X(9) to 9(9) OR 9(9) to X(9)? If yes what are the ways for doing this?

T systems, Tech Mahindra,

12 64177

What is SDSF?

IBM,

13 21659

What will happen if we move SPACES to numeric field and ZEROES to alphabetic field?

T systems,

7 31368

What are ISOLATION LEVELS? Where do we need to specify them?

EXL,

3 10598

What are ISOLATION LEVELS? Where do we need to specify them in compiling JCL (Exactly which statement and what is syntax for it)?

T systems,

2 9504

TIME parameter in JOB statement or EXEC statement specifies What type of time (CPU time or execution time)?

CTS,

5 15516

15. Secondary indexes can be used with following databases a. HSAM,HISAM,HIDAM b. HIDAM, HISAM c. HDAM, HISAM, HIDAM d. All the above

2 8213

What are the special considerations of the PROCOPT field based on the type of operation your program performs

3 8274

Which command code can be used for backing up IMS database?

6 11090

Can a variable length segment be declared in IMS? If yes, what is the structure; If no, why?

2 8540

What are the ways to mapping external control block? a. ENTRY b. PROCEDURE DIVISION USING c. CALL ‘DLITCBL’ d. ALL ABOVE e. A & B

EDS,

4 11322

Write the format of program starting from identification division for checkpoint restart logic.

1 7726

Un-Answered Questions { MainFrame }

What is file information data structure(infds) in as400?

1477

What Does 'sr' In Columns 7-8 Of C Specs Mean?

1742

In job processing, what happens in conversion stage?

1197

What is dynamic transaction backout?

1136

what do you mean by define model parameter?

1151

How can unused space allocation be returned to the system when a dataset is closed?

1496

is oorexx compatible with rexx?

948

What are fillers? What is the actual use of fillers? With mall/simple example?

1007

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.

2227

the maximum number of subfiles that can defined in a rpg program for one display file is ___ .

3291

Explain the significance of rdo?

1085

what happens when sflsiz = sflpag? What are the advantages and disadvantages?

1193

Can you define foreign keys?

1036

What are the recoverable cics resources?

1014

1. There is a file called Month. Month has 12 members called Jan, Feb, ..., Dec. How to design a rpg code which can access any member and show its content. (User can ask for any member when required)?

1051

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