Discussion
A DBMS is transparent if :
Answer: A
A DBMS is transparent if it keeps hidden a physical structure from user.
Transparency in a DBMS means the user works with data without knowing how it is stored: file organisation, indexes, storage devices, and in a distributed database where fragments and copies are kept. This is the physical data independence of the three-schema architecture.
The logical structure, the tables, attributes and relationships, is exactly what users and programs work with, so it is not hidden. Hiding sensitive information is a matter of security and authorisation through views and privileges, not of transparency.
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