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 Some of the columns of a relation are at different sites is which of the following? Horizontal and Vertical Partitioning Horizontal Partitioning Vertical Partitioning Data Replication Horizontal and Vertical Partitioning Horizontal Partitioning Vertical Partitioning Data Replication ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A distributed database can use which of the following strategies? Partitioned into segments at different sites Partially or totally replicated across sites Totally centralized at one location and accessed by many sites All of these Partitioned into segments at different sites Partially or totally replicated across sites Totally centralized at one location and accessed by many sites All of these ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Storing a separate copy of the database at multiple locations is which of the following? Vertical Partitioning Horizontal and Vertical Partitioning Data Replication Horizontal Partitioning Vertical Partitioning Horizontal and Vertical Partitioning Data Replication Horizontal Partitioning ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A distributed database has which of the following advantages over a centralized database? Software complexity Modular growth Slow Response Software cost Software complexity Modular growth Slow Response Software cost ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Replication should be used when which of the following exist? When using many nodes with different operating systems and DBMSs and database designs. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables. The application's data can be somewhat out-of-date. All of these When using many nodes with different operating systems and DBMSs and database designs. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables. The application's data can be somewhat out-of-date. All of these ANSWER DOWNLOAD EXAMIANS APP
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