VSAM Interview Questions
Questions Answers Views Company eMail

What is the difference between CI( Control Interval)and CA (Control Area)?

TCS, Infosys,

3 9178

In vsam why we use export-import utility?

3 12718

What is the maximum no. of records that can be allowed in VSAM ?

2 6348




How do you convert flat files to VSAM files ?

EDS, IBM,

5 19565

What is the maximum record length for the VSAM dataset?

Infosys,

7 15246

What is the procedure for running the batch job in mainframe?

1 4340

What do you mean by dirty read ?

5 10369

What do you mean by RDW in VSAM?

2 7859




While designing vsam files,what is the best way to choose control interval size for the data and the index?

1 4538

How vsam datasets are cataloged?

Ordain Solutions,

1 4486

What are the types of VSAM datasets?

IBM,

3 5917

How are records stored in an ESDS, entry sequenced dataset?

IBM,

1 3889

What is a CI, control interval?

3 3679

What are the distinctive features of a ksds, key sequenced dataset?

2 4088

What is a CA, control area?

1 3133


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Un-Answered Questions { VSAM }

what is buffering and how does it apply to vsam files ?

57


What are the distinctive features of a ksda, key sequenced dataset?

24


What is the biggest disadvantage of using a vsam dataset?

22


is it required that primary key values have to be unique? Do alternate key values have to be unique?

57


is it necessary that all versions of the gdg have to be of the same record length?

59






What are the building blocks used in vsam datasets?

36


What are the different versions of gdg named?

25


Explain the device independent method to indicate where a record is stored?

21


How is the sorting of vsam files carried?

40


What makes vrrds different from vsam?

50


Explain the function of the relative record data set?

32


What is the function of entry sequenced data set?

45


how do you define an altindx ? How do you use altindxs in batch, cics programs?

57


what parameter in the define aix option is used to determine the maximum number of duplicate keys allowable ?

61


Tell me how many alternate indexes you can have on a dataset?

24