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

How can we increase the size of an existing PDS to include more no. of modules. I tried the answer posted by Jagan(TSO PDS 'pds name') but did not find it working. The answer posted by kamal i know very well. Please suggest me a answer so that we don't need to delete the existing PDS and still we can change the size as well.

10 35541

I have two input SORTIN files and We need to create one SORTOUT file which contains data of both input files. What is the SortCard for this?. Suppose the length of the both files are different, then How we do it? Please reply ASAP

CSC,

4 33238

How can you delete records form a file in rpg without using "Delete" OPCODE?

7 23479

How many PARM statement can we use in a CL program?

6 12885

can u tell me and give me an example : how to code a program checkpoint , restart, and tell me when and where i have to run 2 programs...Thanks

1 13311

How to write the PCB code ? if in thic PCB i have 3 PSB ?

4 10761

I am a fresher. I got project on AS 400. Can any body suggest the best book for learning of it.

1 6233

could you give me an example how, where i code CHECKPOINT and restart...I need and example....thanks..

5 20646

How do u know if a start command intiated a transaction or a terminal intiated a transaction

ProKarma,

2 16589

How do you receive data passed through JCL parm parameter in a Natural program ? How Data definition is defined in the program?

JPMorgan Chase,

5 16480

If we are using empty VSAM file, we can see this empty file by using FILE AID tool. How can we open empty VSAM file if you are using in Program..?

3 11804

What is an Associator in ADABAS?

4 16033

how to identify the file used in the JCL is an VSAM file. Just seeing the JCL code how can we track the file as VSAM file?

CSC,

6 17558

If I have 5 Queries in a DB2 Cobol program , while precompiling how many DBRMs will get created and How many Plans and Packages will get created while Bind Process?

Accenture,

8 18258

Could anyone please suggest me what is the maximum length of data that can be pass as input in //sysin dd * This was asked in interview. TIA

VC, Wipro,

3 13721

Un-Answered Questions { MainFrame }

What is ook-rec?

917

How to restart a DB2 program?

1918

What is auto status?

1662

What is difference between static and dynamic call in cobol?

1406

What is the difference between "db2ilist" and "db2 get instance" commands in DB2 Database Server?

1285

) what is the difference between AID and HANDLE AID?

2170

What is the maximum number of pcbs allowed in a psb?

994

How the interaction between DB2, SQL, and QMF takes place?

1670

//S10 EXEC PGM=ICETOOL //TOOLMSG DD SYSOUT=* //DFSMSG DD SYSOUT=* //CON DD DSN=VAR.INPUT1,DISP=SHR // DD DSN=VAR.INPUT2,DISP=SHR //OUT DD DSN=VAR.OUTPUT,DISP=(NEW,CATLG,DELETE), // SPACE=(CYL,(5,5)),UNIT=SYSDA //TOOLIN DD * * Splice the needed data from the two VB files together SPLICE FROM(CON) TO(OUT) ON(5,5,CH) WITHALL - WITH(12,5) WITH(22,20) VLENMAX /*

1473

Explain the output procedure?

1053

Explain the advantage of creating the acbs well ahead of time?

3586

What are the two types of logging in the db2 database? Explain them.

1091

Is their any limit for data sets?

1202

what is unit testing ? on which basis you will write test case ?

2037

Which is faster delete or truncate?

1147

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