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

HOW TO COMMENT THE QMF QUERIES?

ITC Infotech,

2 10343

What is difference between *omit and *nopass?

IBM, TCS,

1 7732

How to find last record before record through SQLRPGLE?

IBM,

1 9452

how to execute qcmdexc in rpgle?plz write code also?

IBM,

1 5378

How to copy one PS file to multiple PS files with same data?

1 15391

can anybody post me about file-aid and changemen tools pls and give me reference if any mainframe guys are there

2478

can anybody post me about file-aid and changemen tools pls and give me reference if any mainframe guys are there

2383

can anybody post me about file-aid and changemen tools pls and give me reference if any mainframe guys are there

1 5242

Why is GETMAIN command needed?? Will program not work if we do not give GETMAIN?

Accenture,

2 14517

What RCT Entries will you make for a CICS DB2 program??

Accenture,

1 8330

How do we pass parameters into a CICS –DB2 program

Accenture, JPMorgan Chase,

4167

How can we code a program such that we will never get a MAPFAIL error?

Accenture,

1 5700

How many ways to share information between different CICS programs?

Accenture,

3 8252

Generally we check EIBALEN = 0 to decide whether first call or not. If I do not pass any value in the COMMAREA then EIBCALEN will be 0 even on second call. Now how can we say the program is called for the first time or second time?

Accenture,

3 11731

What will happen if some program tries to process a queue on which an ENQ command has been issued by some other program?

Accenture,

2717

Un-Answered Questions { IBM MainFrame }

What are the ways fot initiating a transaction?

968

What is database reorganization?

1135

what is the difference between COBOL2 AND COBOL390?

3070

State the maximum number of tables that can be joined?

997

Explain the difference between a return with transid and xctl? For example program. A is issuing return with transid to program b. Program a. Is isssuing xctl to program b?

1056

What are the advantages and disadvantages of a hierarchical database?

1151

What is the need of running runstats in the test environment?

1082

How can return codes be tested before execution of a job step?

1490

Explain the disadvantage of dynamic generation of acb?

954

Explain about base register?

1069

I need to compare 3 variables(dates) and do some processing based on the earliest date. There could be more then 1 date record in any of the 3 fields. What is the best way to code this?

2285

What is the place for VSAM KSDS?

1109

What is the function of the dd mgmtclas keyword in sms datasets?

1242

What are the rules for db2 programming?

1101

What are the different dataset organizations used in vsam?

1005

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