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

Is it mandatory to use DCLGEN? If not, why would you use it at all?

2 9116

What is a composite index and how does it differ from a multiple index?

1 4763

What is an asychronous write?

1 4654

What is correlated subquery?

1 5034

Can DASD types assigned to storage groups be intermixed (i.e., 3350s and 3380s)?

1 4061

What is a precompiler?

2 5981

Where would you find information about the type of database authority held by the user?

2 5642

How do you do the EXPLAIN of a dynamic SQL statement?

2 6220

What will the COMMIT accomplish?

5 7881

What is a view? Why use it?

3 6326

What is sqlcode -811?

Accenture, CTS, TCS,

7 74649

What is an intent lock?

3 10836

what types of copies can be made with the COPY Utility ?

1 4718

What is a synonym? How is it used?

2 5622

what is a collection?

2 5447

Un-Answered Questions { MainFrame }

Explain what are the various isolation levels possible?

1057

What is frset?

1041

What is perform what is varying?

1188

an access path may be in which sequence?

1173

What is the difference between binary search and sequential search?

1102

what is meant by s0c-07 system abend codes?

1097

What is the difference between physical file and logical file?

1153

how you will find an error which is not in the first page of the subfile without using rolldown key?

1023

In COBOL programming, what is PERFORM? What is VARYING?

1160

When an area sweep is used?

851

What is the difference between PIC 9.99 and 9v99 in COBOL?

1352

Explain the function of job statement in jcl?

1221

What is ibm db2 connect?

1013

Can one database have multiple instances?

1064

What is query_cache_limit?

981

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