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 2657

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

1 1694

What is difference between fully procedural file and primary file?

1 2245

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

1 1802

How many primary files allowed in a program?

1 1743

How many secondary files allowed in a program?

1 1802

What is the purpose of RTVMBRD command?

1 2311

Define an Interactive Job?

1 1558

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

1 1913

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

1 1508

What is the purpose of SFLFOLD and SFLDROP keywords?

1 1748

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

1 1622

What is a Member?

1 1656

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

1 1706

What is acronym of RPG?

1 1643

Un-Answered Questions { MainFrame }

how would find total records in files using sequential?

980

What are the advantages of vsam over isam?

1131

What do you mean by monitor block?

1855

How to code these statements in JCL: CLEANUP INITIAL(NO) RESTART(NO) DYNALLOC(NO) job definition..?

2250

Explain the difference between null compression and default compression?

942

what is the cics command used to access current date and time?

1157

What are the parameter we cannot use in procedure?

1117

explain the means of supporting pseudo conversation programming. (Eg. Storing and restoring of states, control flow, error handling)?

1063

Name the versions of ibm mainframes have introduced in the market?

960

Explain the difference between link and xctl?

953

How to fetch 1000 error records from VSAM file(Eg: 1000000 records present) while getting SOC7 abend ?

2463

What is the difference between physical file and logical file?

1133

What is schema in db2?

1018

Name the command which is used to release a record on which exclusive control is gained?

1002

Explain dd statement in jcl?

1121

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