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

COBOL (1072)
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DB2 (1122)

IMS (143)
IDMS (107)
Natural (81)
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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 the improvement to COND= in the latest version of MVS?

3 7692

What is the purpose of the PARM keyword in the EXEC statement?

3 9397

What is the purpose and meaning of the REGION keyword and what JCL statement is it associated with?

IBM,

3 28253

What is the purpose and meaning of the TIME keyword and what JCL statement is it associated with?

1 5871

What is the meaning of data definition name (ddname) and dataset name (dsname) in the DD statement?

2 9399

How is the keyword DUMMY used in JCL?

4 12706

What does the keyword DCB mean and what are some of the keywords associated with it?

ITC Infotech,

3 9645

What is the difference between BLKSIZE and LRECL?

3 17292

Can you execute a PROC from another PROC?

Keane India Ltd,

8 28580

What will happen if you attempt to restart a job in the middle of a JCL // IF .... // ENDIF?

4 10608

How many positional parameters are there in job statement?

4 16010

What are three parameters you can specify on Job statement as well as on exec stmt ?

1 7179

How can you trap abends in the JCL?

3 16112

How do you restart a step in JCL?

HSBC,

12 95193

How do you pass parameters to the program as the job is being executed ?

2 7177

Un-Answered Questions { IBM MainFrame }

When reorg is used?

1139

What is the purpose of rollback and commit?

1203

Explain how do you delete item 3 in a five-item tsq?

932

What is the difference between a return with transid and xctl?

1081

Can any one tell me that how we go for the compare,unit testing after changing requirement as per client request. this is very helpful for me when u give suitable (coading) exmple.

2164

What is a SSRANGE and NOSSRANGE?

1479

How many registers we are using in mvs?

1207

Can I cleanly uninstall oorexx?

974

What is rct?

1244

My IMS main progam is calling Db2 subroutine ...Its giving - 923 db2 sql code..so could any one tell how to solve this issue.

3604

Our issue is there seems to be a disconnect, or no link, between our SELECT statement and our SD. We had SELECT SORT-FILE and SELECT SORT-FILE ASSIGN TO SORTWRK. ASSIGN TO SORTWRK1 SORTWRK2 SORTWRK3 SORTWRK4. with SD SORT_FILE RECORD CONTAINS 7833 CHARACTERS. In either case, at run time, the system ignored our SORTWRK# DD statements and allocated 16 sort works with the SORTWK## naming convention. Any ideas why the system does not recognize the connection? We do not even need the SORTWRK DD statements. Thanks

2974

Using alternate indexes in batch program?

1125

What are the various data types available in db2?

1103

What is Framework & How it work?

2134

What is acbgen process?

1201

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