VSAM INTERVIEW QUESTIONS AND ANSWERS PDF

What are the different types of VSAM files available? What is purpose of VSAM? What is the maximum record length for the VSAM dataset? The file statuskey is divided into two status keys: the first character is known as file status key1; the second character is file status key 2. What is VSAM? VSAM supports fixed as well as variable length records.

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How are the records stored in ESDS? One thing to remember, they are not stored with respect w. What is a cluster? Answer: A cluster combines all of these — index, sequence set and the data part of the dataset within it.

The responsible OS gives the program access of the cluster access is given to every part of the dataset simultaneously. It will become unavailable for the user trying to do so.

Rather, an empty file can be opened for the purpose of some outputs. COBOL will write a dummy record in the file and delete it when a user opens it for some output. What kind of problems are associated with the VSAM out of space conditions? What will you understand with the following command? According to you, what can be the biggest disadvantages of using the VSAM datasets?

How to define KSDS? Answer: This can be done by defining the cluster with the indexed parameter. Also, to specify the DS name for the related components and the DS index components. Explain the KSDS file structure?

Answer: Unique key value is there to find any specific records. There is Index Components and Data Components. The key value is searched in the Index section. Once it is searched the corresponding memory address is retrieved.

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VSAM Multiple Choice Questions and Answers

What is a control interval? A control interval is the unit of information that VSAM transfers between virtual and auxiliary storage. How are records stored in an ESDS? Records are stored in the order in which they are included in the file. What is a control area? A group of control intervals makes up a control area. What is a cluster?

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35 VSAM Interview Questions and Answers - Freshers, Experienced

How are the records stored in ESDS? One thing to remember, they are not stored with respect w. What is a cluster? Answer: A cluster combines all of these — index, sequence set and the data part of the dataset within it. The responsible OS gives the program access of the cluster access is given to every part of the dataset simultaneously. It will become unavailable for the user trying to do so.

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VSAM Interview Questions and Answers

A cond code of 4 indicates a warning. What will be the condition code returned to the operating system? What is Control Interval, Control Area? Must be between bytes to 32 k. Usually either 2K or 4K. A larger control interval increases performance for sequential processing while the reverse is true for random access. Control area is a group of control intervals.

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