This document discusses different data storage technologies and their properties. It asks which was designed to support information exchange, which would be more space efficient representing a dept-course-instructor model, and which have data typing abilities and require the most understanding of underlying data storage. Relational DBMS was designed for information exchange. Hierarchical DBMS would be more space efficient than network DBMS for the given data model due to supporting one-to-many relationships. Permanent data storage and relational DBMS have data typing abilities and require the most underlying data storage understanding, respectively.
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Database Of the following data storage technologies- Permanent Data St.docx
1. Database
Of the following data storage technologies:
Permanent Data Storage
COBOL
Hierarchical DBMS
Network DBMS
Relational DBMS
Object-Oriented DBMS
Xml
a) Which was designed to support exchange of information between organizations, companies,
and / or application?
b) Which would be more space-efficient at representing a data model containing dept-course-
instructor: Hierarchical DBMS or Network DBMS? Why?
c) Which have the ability to ensure that data fields conform to definitions (i.e., data typing)?
d) Which requires the most understand about how the data is actually stored?
Solution
a) Relational DBMS.
b)Hierarchical dbms . because it supports One to many and one to one .
while network model only for many to many .
c)Parmanent data storage.
d) Relational DBMS.
