EXAMIANS
Replication may use either synchronous or asynchronous distributed database technologies, although asynchronous technologies are more typical in a replicated environment.
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The purpose of timestamping is to avoid the use of locks.
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A distributed unit of work allows various statements within a unit of work to refer to multiple remote DBMS locations.
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A distributed database has which of the following advantages over a centralized database?
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Data replication is favored where most process requests are read-only and where the data are relatively static.
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Which of the following is a disadvantage of replication?
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A homogenous distributed database is which of the following?
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Synchronization for pull replication is less disruptive and occurs only when needed by each site, not when a central master site thinks it is best to update.
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Each site (or node) in a distributed system is subject to the same types of failure as in a centralized system.
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With asynchronous technology, if any copy of a data item is updated anywhere on the network, the same update is immediately applied to all other copies or it is aborted.
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