A distributed database must:
A) keep track of data locations.
B) present a single logical database that is physically distributed.
C) provide consistency among data copies.
D) all of the above.

Question

Quizplus · Accepted Answer

A distributed database must keep track of data locations to efficiently retrieve data from the appropriate location. It also presents a single logical database that is physically distributed to hide the detail of data fragmentation and replication from the users. Moreover, it must provide consistency among data copies to avoid conflicts between multiple users accessing the same data. Therefore, all the given options are correct, making option D the right choice.

A Distributed Database Must