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

Can anyone provide me the source code for LOC(lines of code) counter written in REXX language which can run on IBM mainframe z/OS V1R4. The LOC counter should be able to count the comments,lines of code,blank lines in a COBOL program and JCL's

Wipro,

2743

What is the meaning of the following declaration : DCB=BLKSIZE=, What is the difference between above declaration & not specifying DCB at all for a output file?

1 5644

Please any one can tell me,What are the tools for pl/1 project in real time scenario?(what are the version control,debugging and files related tools)?

1 3320

What is difference between com and com3? Eg. s9(4) so what is the memory it will occupy com and com3.

2 8566

what is index and how to use two tables using index?

1 6432

What is db2 isolation?

2 7489

Update command

1 4605

What is cursor?

2 5744

Suppose there are 10 steps in a PROC, I want to execute only step5. How do you give the condition in the JCL that calls this PROC?

IBM,

3 10772

What is the default value of DISP parameter?

IBM,

3 31010

What is the default value of DISP for temp datasets

IBM,

5 14345

How to Write the RESTART Logic Using COBOL?

GalaxE, L&T, Syntel, TCS,

4 21569

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

Cap Gemini,

3649

what is the maximum error code in mainframe

2 9980

Hi Devolopers.. i need ur help.. i have 3 years of exp in Manual testing and SQL, next month onwards i shifted in to MAINFRAME TESTING... i have ZERO Knowledge abt mainframes.... PLS SUGGEST ME WHAT I LEARN in AMEERPET? mainframe testing or mainframe total devolopment subject... AS a devoloper u know every thing tester what to do PLSSSSSSSSS help me ITS VERY URGENT...

1 4592

Un-Answered Questions { IBM MainFrame }

how to access data in control blocks such as jobname?

1013

What is the difference between drop table and delete table?

1298

how to pass parms to ispf edit macro?

1176

What is the function of the steplib dd statement?

1261

Explain the difference between temporary storage queue (tsq) and transient data quene (tdq)?

1048

What are the rules employed while naming the steps in a job?

1218

What is amode(31)

1230

What is the meaning of a (new, catalog, keep) disposition mean?

1206

What is an OOK-Rec?

1779

the dfhcommara is used to pass information from one application to another. What are some other ways that this function can be accomplished?

1211

how would find total records in files using sequential?

1049

What is the physical storage length of time data type?

1191

What is monosysplex?

833

What is the copy idms subschema-binds?

902

What is the purpose of having vsam data space?

1018

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