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 21198

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

T systems,

7 31078

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

EXL,

3 10483

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 9402

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

CTS,

5 15301

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 8088

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

3 8136

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

6 10838

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

2 8441

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 11185

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

1 7641

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

2 11158

What are the default system and catalog libraries in JCL?

Infosys,

2 11977

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,

2682

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 11637

Un-Answered Questions { IBM MainFrame }

Can you define mdt?

1051

explain in brief how you can create a vsam file?

1091

Explain the three location modes?

850

What is currency in idms?

921

Can you define temporary storage?

1078

Explain the difference between physical map and symbolic map?

947

What are 77 levels used for?

1069

How do you round the addition or subtraction of two numbers in assembler?

984

What is the use of db2?

1014

What is the difference between external and global variables in COBOL?

1377

how do we prepare test data using file-aid tool?

2502

Name some of the examples of COBOl 11?

3096

Explain how can an in-stream dataset be terminated?

1267

Explain how can the attributes of one sms dataset be copied to another dataset?

1170

When The Define Jcl Is Not Available, How Can You Get Information About A Vsam File's Organisation ?

1191

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