Distributed Databases A distributed database is which of the following? A loose collection of file that is limited to one location. A single logical database that is spread to multiple locations and is interconnected by a network A loose collection of file that is spread to multiple locations and is interconnected by a network A single logical database that is limited to one location. A loose collection of file that is limited to one location. A single logical database that is spread to multiple locations and is interconnected by a network A loose collection of file that is spread to multiple locations and is interconnected by a network A single logical database that is limited to one location. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Databases that are stored on computers at multiple locations and are not interconnected by a network are known as distributed databases. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Which of the following is a disadvantage of replication? Reduced network traffic Each site must have the same storage capacity. If the database fails at one site, a copy can be located at another site. Each transaction may proceed without coordination across the network. Reduced network traffic Each site must have the same storage capacity. If the database fails at one site, a copy can be located at another site. Each transaction may proceed without coordination across the network. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases The cost to perform a snapshot refresh may depend on whether the snapshot is simple or complex. 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? Vertical Partitioning Data Replication Horizontal Partitioning Horizontal and Vertical Partitioning Vertical Partitioning Data Replication Horizontal Partitioning Horizontal and Vertical Partitioning ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Which of the following is not one of the stages in the evolution of distributed DBMS? Remote unit of work Unit of work Distributed request Distributed unit of Work Remote unit of work Unit of work Distributed request Distributed unit of Work ANSWER DOWNLOAD EXAMIANS APP
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