If a Distributed Database Network with Data Replication Has One

Multiple Choice

If a distributed database network with data replication has one node that has a copy of every table in the database ____.

A) the problem of data concurrency is eliminated
B) the issue of one site becoming a bottleneck is eliminated
C) the problem of data security is eliminated
D) at least one other copy of each table must also be stored elsewhere on the network
E) the problem of distributed joins is eliminated