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 is the improvement to COND= in the latest version of MVS?

3 7865

What is the purpose of the PARM keyword in the EXEC statement?

3 9503

What is the purpose and meaning of the REGION keyword and what JCL statement is it associated with?

IBM,

3 28366

What is the purpose and meaning of the TIME keyword and what JCL statement is it associated with?

1 5940

What is the meaning of data definition name (ddname) and dataset name (dsname) in the DD statement?

2 9524

How is the keyword DUMMY used in JCL?

4 12887

What does the keyword DCB mean and what are some of the keywords associated with it?

ITC Infotech,

3 9769

What is the difference between BLKSIZE and LRECL?

3 17423

Can you execute a PROC from another PROC?

Keane India Ltd,

8 28856

What will happen if you attempt to restart a job in the middle of a JCL // IF .... // ENDIF?

4 10758

How many positional parameters are there in job statement?

4 16173

What are three parameters you can specify on Job statement as well as on exec stmt ?

1 7270

How can you trap abends in the JCL?

3 16241

How do you restart a step in JCL?

HSBC,

12 95586

How do you pass parameters to the program as the job is being executed ?

2 7279

Un-Answered Questions { IBM MainFrame }

What is fset?

1071

What is the use of predicate?

1095

Explain delete-connected tables?

1100

What is the difference between bind and rebind in db2?

1515

What is batch dl/i mode?

3412

List the type of locks and explain each of them.

978

What is db2 bind?

1133

What is hierarchical database?

3786

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

2739

Explain the maximum number of segment types allowed for a single database?

2334

What are the difference between jcl and jes?

1666

what is the meaning of each of the values in shareopts(2 3)?

1076

What is a trigger in the db2 database?

1149

What is qsam?

885

Explore the syntax of the evaluate statement?

1021

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