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 21701

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

T systems,

7 31395

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

EXL,

3 10620

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 9515

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

CTS,

5 15537

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 8224

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

3 8292

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

6 11123

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

2 8555

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 11341

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

1 7738

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

2 11271

What are the default system and catalog libraries in JCL?

Infosys,

2 12086

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,

2730

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 11772

Un-Answered Questions { IBM MainFrame }

Does jcl support automatic restart?

1244

What is the place for VSAM KSDS?

1109

What is db2 plan table?

1054

What is the function of dd name parameter with a 2 part structure; audit.report?

1252

what are the various stages of job processing?

1290

What is meant by comp-3 and what is it used for?

1041

What is an instance in db2?

1043

what is the use of outrecord?

2226

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

9901

List out all the tables that are a part of cics ?

967

How to retrieve rows from a db2 table in embedded sql?

1401

What is length is cobol?

1111

HOW to change the coloumns in XREF?

2009

What are the contents of a dclmgen?

1136

When you are obtaining next within a set and get a end of set return code, on what record are you now current?

1422

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