Distributed Databases Replication may use either synchronous or asynchronous distributed database technologies, although asynchronous technologies are more typical in a replicated environment. True False True False ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A distributed database has which of the following advantages over a centralized database? Slow Response Modular growth Software complexity Software cost Slow Response Modular growth Software complexity Software cost ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A distributed database can use which of the following strategies? Totally centralized at one location and accessed by many sites All of these Partially or totally replicated across sites Partitioned into segments at different sites Totally centralized at one location and accessed by many sites All of these Partially or totally replicated across sites Partitioned into segments at different sites ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Some of the columns of a relation are at different sites is which of the following? Vertical Partitioning Horizontal Partitioning Horizontal and Vertical Partitioning Data Replication Vertical Partitioning Horizontal Partitioning Horizontal and Vertical Partitioning Data Replication ANSWER DOWNLOAD EXAMIANS APP
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