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

What is SDSF?

IBM,

13 21184

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

T systems,

7 31064

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

EXL,

3 10474

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 9397

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

CTS,

5 15299

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 8083

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

3 8134

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

6 10825

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

2 8433

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 11179

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

1 7635

How do I declare the KSDS vsam so that I can store a reocrd with variable length?.

2 11153

What are the default system and catalog libraries in JCL?

Infosys,

2 11971

Hello All, We have requirment to Replace BMC Db2 Load product thru CA FAST LOADPlus product. Do anyone have JCL to for FAST LOADPLUS and what all are thing need to take in consideration.

IBM,

2681

I am new to rexx db2 ,can anyone help me by expalinin how to code the db2 queries using rexx,and also plz send some link and examples using db2 queries.

3 11631

Un-Answered Questions { IBM MainFrame }

Explain how can you accomplish breakpoint in intertest?

981

Sync points cannot be requested by the application programs? State true or false

1123

Explain the difference between and exec cics xctl and an exec cics link command?

1046

What is bind in db2?

990

What is buffer pool and list some of them?

992

what are the statements that are not valid to be included in an include statement?

1341

How and when does the db2 enforces the unique key?

1045

What is an in line perform? When would you use it? Anything else you wish to say about it.

1033

Explain the function of the cics translator?

1004

Define clustered index?

922

Is their any limit for data sets?

1132

How to pass the parameters from jcl to assembler program?

954

Why db2 is called db2?

981

WHAT IS THE PROCESS OF "CLAIM PROCESSING SYSTEM"

2343

Why do we use "drop"?

939

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