Distributed Databases The cost to perform a snapshot refresh may depend on whether the snapshot is simple or complex. False True False True ANSWER DOWNLOAD EXAMIANS APP
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 Data replication is favored where most process requests are read-only and where the data are relatively static. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Which of the following is a disadvantage of replication? Each site must have the same storage capacity. Reduced network traffic Each transaction may proceed without coordination across the network. If the database fails at one site, a copy can be located at another site. Each site must have the same storage capacity. Reduced network traffic Each transaction may proceed without coordination across the network. If the database fails at one site, a copy can be located at another site. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases The purpose of timestamping is to avoid the use of locks. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases The problem of concurrency control is more complex in a distributed database. True False True False ANSWER DOWNLOAD EXAMIANS APP
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