Distributed Databases
Replication should be used when which of the following exist?

When transmission speeds and capacity in a network prohibit frequent refreshing of large tables.
All of these
The application's data can be somewhat out-of-date.
When using many nodes with different operating systems and DBMSs and database designs.

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Distributed Databases
An autonomous homogenous environment is which of the following?

The same DBMS is at each node and each DBMS works independently.
A different DBMS is at each node and each DBMS works independently.
The same DBMS is at each node and a central DBMS coordinates database access.
A different DBMS is at each node and a central DBMS coordinates database access.

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