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

What is the difference between production library and test library ?

1 2758

When will you use OPEN and CLOSE opcodes in RPG program?

1 1779

What is difference between fully procedural file and primary file?

1 2345

What is the difference between externally described file and program described file?

1 1902

How many primary files allowed in a program?

1 1856

How many secondary files allowed in a program?

1 1899

What is the purpose of RTVMBRD command?

1 2430

Define an Interactive Job?

1 1661

How can you check the existence of object in a system?

1 2003

What is the purpose of FRCDTA (Force Data) keyword?

1 1600

What is the purpose of SFLFOLD and SFLDROP keywords?

1 1841

What is the function of DSPATR (display attributes) keyword?

1 1708

What is a Member?

1 1749

What is the maximum number of key fields allowed defining in a physical file?

1 1788

What is acronym of RPG?

1 1730

Un-Answered Questions { MainFrame }

What is parallel sysplex?

882

How to convert a spool file to PDF file in AS400?

1288

Which component is used to execute the sql statements?

1149

How do you code cobol to access a parameter that has been defined in jcl? And do you code the parm parameter on the exec line in jcl?

1252

How to get the last record in vsam file in cluster? And how can u get the ksds file records into cobol program?

1091

I have a pf, it contains 5 members, how to access particular member data from logical file?

1024

What is the role of union all and union

1196

Define declaration generator (dclgen).

1173

Program A (Normal COBBAT) calling a B Program (DB2COBOL, COBBATDB which is using a VSAM file. its a dynamic call. How we will handle VSAM file decleration in our from JCL from where we are running A PGM. And should we have PLAN for A pGM also. if possible can some one post a sample JCL. Thanks for help in advance.

5797

Explain about find and obtain commands?

983

What is the function of dbctl?

1179

How to Build a Row Condition?

1777

What is host variable?

1116

What is a buffer in memory?

1115

How can a jobs execution priority be modified?

1347

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