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

IBM MainFrame (5234)
IBM AS400 (1355)
IBM PL/1 (31)

MainFrame Interview Questions

Questions Answers Views Company eMail

What is the COMMAREA(communications area)?

2 11419

Mention the 5 fields available in the symbolic map for every ?NAMED? field in the DFHMDI macro? Give a brief description of these fields (Not exceeding a line).

IBM,

2 13656

What is the function of the LOAD command?

IBM,

1 5257

What are the differences between an EXEC CICS XCTL and an EXEC CICS LINK command.

1 9509

What is the difference between START and XCTL ?

IBM,

3 8041

What is the meaning of BMS length of field = 0?

IBM,

1 9005

How and where is the TWA size set? .

IBM,

1 12098

What is the difference between LINK and XCTL ?

IBM,

1 7663

What is the EIB parameter and the CICS command used to implement Pseudo-Conversational technique using single PCT ? Single PPT entry?

IBM,

1 7443

Name some common CICS service programs and explain their usage?

IBM,

1 6113

What is the difference between EXEC CICS HANDLE CONDTION and an EXEC CICS IGNORE command?

IBM, TCS,

2 8997

Explain floating maps with illustration.

IBM,

1 4673

What is the difference between a RETURN with TRANSID and XCTL ?For example prog. A is issuing REUTRN with TRANSID to prog B. Prog A. is issuing XCTL to prog B?

3 29168

What is an AEY9 abend ?

IBM, Xansa,

4 25170

How do you fire a batch job from a CICS transaction ?

TCS,

2 10642

Un-Answered Questions { MainFrame }

What is difference between static and dynamic call in cobol?

1393

Which dd parameters are required?

1194

I have mainpgm(abc) this is the only cobol pgm(non-db2).And this pgm calling subpgm name "acd" this also only cobol(non- Db)and this pgm calling some other subpgm this pgm has cobol-db2 pgm. 1) IF you calling static mode how to run and how to compile? 2) IF you calling dynamic mode how to run and how to compile? plz suggestion me.

2619

How to update data area in cobol 400 program?

1050

In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?

1470

how are start and xctl different?

967

What is RRange and ARange?

2112

what is the clp command to access a query/400?

2144

what is arrival sequence?

1888

What is bind and rebind in db2?

1139

How to change the batch job to interactive job?

989

What is condition checking in jcl? Is this possible?

1118

What does "using" do?

1061

Explain how to access vsam file?

1093

What is plan in cobol db2?

1141

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