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VSAM Interview Questions are the latest VSAM interview question which is designed for experienced and freshers. The VSAM Interview Questions and Answers session begins with an introduction to VSAM then followed by Top 20 VSAM Interview Questions. Mainframe VSAM interview questions cover all four VSAM data sets i.e. KSDS, ESDS, RRDS, LDS. The session also included VSAM tricky questions.

The term VSAM stands for Virtual Storage Access Method.

VSAM is one of several access methods in z/OS. It applies only to data stored on direct
access storage devices (DASDs). An access method is a re-entrant code that is loaded at IPL
time at PLPA and contained in DFSMSdfp, a component of the z/OS DFSMS product. This
access method makes it easier for an application to run an I/O operation (moving data
between an I/O device and memory). Let's get started with VSAM interview questions.

Index.

00:00 Welcome to VSAM Interview Questions.
00:24 Introduction to VSAM.
01:55 What are the types of VSAM datasets?
02:15 VSAM disk space.
02:31 Feature of KSDS?
02:54 How records are store in the ESDS datasets?.
03:16 What is LDS and what is used for?
04:16 Why is the space kept in the data component of the KSDS data set?.
04:33 Feature of KSDS.
04:59 What is the difference between ESDS and KSDS?
05:25 What is the difference between LDS and ESDS?
05:49 What is Control Interval (CI)?.
06:08 What is Control Interval Split?

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