VSAM Interview Questions
Questions Answers Views Company eMail

On which dataset you can have alt index?

501

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

582

What is a lds (linear data set) and what is it used for?

519

What is the biggest disadvantage of using a vsam dataset?

603

Using alternate indexes in cics program?

555

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

525

What does the keyranges parameter in define cluster commends do?

500

If fspc(100 100) is specified does it mean that both the control interval and control area will be left empty because 100 % of both ci and ca are specified to be empty?

633

Is it slower if you access a record through alt index as compared to primary index?

596

What is a base cluste?

601

Would you specify freespace ce for an esds?

600

What is a lds (linear data set)?

551

What is speed parameters in define cluster command?

501

What is the use of lds (linear data set)?

571

Explain the catalog?

564


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Un-Answered Questions { VSAM }

OPEN INPUT StudentFile READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ PERFORM UNTIL EndOfStudentFile DISPLAY StudentId SPACE StudentName SPACE CourseCode SPACE YOBirth READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ END-PERFORM CLOSE StudentFile STOP RUN what will be output

2069


differentiate between sequential files and esds files in vsam?

583


what how do you initialize a vsam file before any operation? A vsam with alternate index?

553


explain how many ways you can load data in a vsam cluster?

580


How to get the last record in vsam file in cluster?

572






What is a base cluste?

601


name the utility program closely associated with vsam?

575


Explain the difference between lds and esds?

575


Using alternate indexes in batch program?

590


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.

1878


What is recovery parameters in define cluster command?

564


What is the use of access method services in vsam?

589


What is the main function of linear dataset?

561


what is meant by dirty read in vsam?

840


how many buffers are allocated to vsam ksds and esds?

705