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VSAM Interview Questions
Questions Answers Views Company eMail

Is it slower if you access a record through ALT INDEX as compared to Primary INDEX? Why?

 1 5290

Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.

 1976

What is RECOVERY and SPEED parameters in DEFINE CLUSTER command?

 1 13529

Describe SHAREOPTIONS parameter (SHR) in Define Cluster command.?

 1 17051

What does the KEYRANGES parameter in Define Cluster commend do?

 1 6842

What are the optional parameters to the input dataset While loading the empty cluster with the data records?

IBM,

1 5325

What is IDCAMS? and what is the purpose of it?

 4 17753

How to delete a member using JCL.?

 5 13951

What is the Difference between LDS & ESDS ?

 3 14137

Is a delete operation possible in an ESDS?B. Is rewrite operation possible in ESDS ?

 3 8961

What is an alternate index and path ?

Infosys, TCS,

2 25653

How many buffers are allotted to VSAM KSDS and ESDS?

 1 7554

what's the biggest disadvantage of using a VSAM dataset?

Anjana, CTS, DSRC, IBM,

8 18147

what's the device independent method to indicate where a Record is Stored?

 1 5098

How many times secondary space allocated?

 5 9567

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Un-Answered Questions { VSAM }

What makes vrrds different from vsam?

806

What is the main function of key sequenced data set in vsam?

604

explain the differences between vsam and non-vsam files

729

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

709

what do you mean by a vsam split?

674




name a few common vsam status codes?

701

what is meant by dirty read in vsam?

954

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

646

how do you create an alternate index ?

662

What is a ci split? What is a ca split?

724

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

679

what is the purpose of the verify function of idcams?

681

differentiate between sequential files and esds files in vsam?

672

what do you mean by idcams? Explain its purpose?

607

Differentiate between ci split and ca split?

621

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