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

If TDQs are selfdestructive then why they are used? AND Why TSQs are preferred over TDQs?

IBM,

5 12106

Looking at an CICS module how would one will identify that it is pseudo or full conversational?

IBM,

5 13141

Cursors can be declared in both working-storage & procedure division, Agreed. But is there any difference? If could you please suggest what is the difference. TIA

CGI, Wipro,

8 33098

Can we give the GSAM-PCB in between the DB-PCB'S like below? I/O-PCB DB-PCB1 GSAM-PCB1 GSAM-PCB2 DB-PCB2

IBM,

4 13306

What is reference modification? What is UNION in sql and syntax? What is the difference between GDGS and VSAM? Which is prefer one? What is processing groups in endevor?

Kuwait Oil Company,

1 9086

Would like to know if have an expecific command that returns a code or something about the execution of a CALLNAT. For example ... CALLNAT 'SUBPRG' [parameter] [parameter] ... [here comes a code or command that checks if the CALLNAT was successful]

1 7177

What type of Call you would use if you don;t want the control back to the calling program?

TCS,

8 13010

Scenario: I have 3 Input Files.Read the first i/p file and depending on certain business logic, I want to read wither i/p file-2 or i/p file-3.Now, depending on certain business logic applied to the record read from either file-2 or file-3, I decide to write them to either output file-2 or output file-2. Question: How many job steps are necessary to implement a solution for the above.

TCS,

2 6779

I have a job which is a long-running one. Processes millions of records. Due to some run-time problem (not a problem due to the job/data) the job abends.What needs to be done to make the job complete successfully.

TCS,

4 10695

Under which scenario you would go for a static call as opposed to dynamic call?

TCS,

5 10300

Is it Possible to declare or create a cursor for UPDATE of table? If yes tell me how? If no Tell me why?

IBM, scintel,

1 12511

I have a PSB which contains 3 PCB, how to write it ? please..

EDS,

5 15414

What will happen if two JOB statements are mentioned in an JCL continuously.

IBM,

2 8144

Hai I have a VSAM file and there are two CICS pgms A and B both intends to update the file. How to code the program so that it does not under go a dead lock situation.

4 10905

what are the bind parameters?

IBM,

5 40002

Un-Answered Questions { MainFrame }

Explain about ISPF/TSO Commands

1966

Tell me what type of files we can process thru file-aid?

960

What is the need of a secondary index in IMS?

1080

Explain difference between escape(top or bottom) and escape immediate(top or bottom?

1217

How to dsect parameter is used in bms?

1307

Explain host variables?

1002

Define cobol?

1420

have 3 tables table1, table2 and table3 which contains employee information. table1 is master table, table2 contains emp details like emp no and so on, table 3 contains emp salary. so if any emp leave company between 25th - 30th of every month it has to get updated in tables. but it is not getting updated. What is the reason.

1749

Explain the difference between using the read command with into option and set option?

1034

Explain is it possible to code goto statement in natural? If yes please provide the syntax of the same?

993

What is the Purpose of POINTER Phrase in STRING command in COBOL?

1268

What are the terms cics generally means?

1019

How dummy is used in jcl?

1165

What are the various section in data division and briefly explain them.

1215

What is db2 stogroup?

1179

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