Answer Posted / rameez akhtar

In vsam data sets data is stored in CIs & CAs, CI is small
unit and CA is big unit, a ca contain more then one CIs, CI
have four components
Data
CISF
RDF
Free space
CA also have free space in between records, that space is
used when new records added to the data set can not fit in
the free space of CIs.

What is a base cluste?

1176

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On which dataset you can have alt index?

964

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what is the meaning of each of the values in shareopts(2 3)?

1070

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what does a file status of 02 on a vsam signifies?

1231

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

1065

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what do you mean by idcams? Explain its purpose?

1017

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in a cobol select statement for a ksds can you tell me what are the 3 possibilities for access?

1247

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

1051

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how many buffers are allocated to vsam ksds and esds?

1208

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What are the access method services used in vsam?

1078

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State the differences between vsam and non-vsam files?

1107

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Would you specify freespace ce for an esds?

1139

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there are seven idcams commands in vsam. Can you name and explain each of them?

1160

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What is the main function of key-sequenced data set?

1082

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in a cobol select statement, can you tell what is the organization for a ksds?

1159

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