Multiple choice technology databases

What is the physical nature of a database called?

  1. IO-PCD

  2. DBD

  3. IO-AREA

  4. SSA
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B Correct answer
Explanation

The physical nature of an IMS database is defined by the DBD (Database Description). The DBD describes the physical structure of the database including segment layout, field definitions, and indexing information. IO-PCB and IO-AREA are runtime structures used during program execution, while SSA is a navigation parameter.

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