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

What are the kinds of job control statements?

3 8155

What is the meaning of keyword in JCL? What is its opposite?

1 7533

Describe the JOB statement, its meaning, syntax and significant keywords?

1 5120

Describe the EXEC statement, its meaning, syntax and keywords?

2 5941

Describe the DD statement, its meaning, syntax and keywords?

2 9399

What is a PROC? What is the difference between an instream and a catalogued PROC?

2 12710

What is the difference between a symbolic and an override in executing a PROC?

2 13776

What is RESTART? How is it invoked?

HSBC,

8 23817

What is a GDG? How is it referenced? How is it defined? What is a MODELDSCB?

3 9871

Explain concatenating datasets?

CTS,

2 10110

What is the difference between specifying DISP=OLD and DISP=SHR for a dataset?

2 9411

What is MOD and when would you use it?

3 7603

What are the keywords associated with DCB? How can you specify DCB information? What is the OS precedence for obtaining that DCB information, ie. where does the system look for it first?

2 9003

How do you designate a comment in JCL?

1 9452

What is the meaning of the EXEC statement keyword, COND? What is its syntax?

2 6124

Un-Answered Questions { IBM MainFrame }

What are the different types of base tables?

1172

What is node in db2?

1106

I want to open particular list of members inside pds.Let me know whether below code will work.if not tell me how it works INPUT='DDM.DATASET(AAA*)' X = OUTTRAP(MEMS.)

3278

If anyone has latest IBM Certification Dumps can you pls forwards it to me

3003

Following a db2 update statement, what is the quickest way to compute the total number of updated rows?

1142

Explain about find and obtain commands?

984

Is condition checking possible in jcl?

1260

How to get the ddl of a table in db2?

1175

what is difference between cobol and cobol/400

23093

How vsam files are read in cics pgms?

1363

What is cobol?

1295

Can you explain referential integrity?

1066

what are transient data sets defined to cics?

1256

What is icm instruction?

1123

My sql statement select avg(salary) from emp yields inaccurate results. Why?

1139

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