Distributed Databases A distributed database is which of the following? A single logical database that is spread to multiple locations and is interconnected by a network A loose collection of file that is limited to one location. A single logical database that is limited to one location. A loose collection of file that is spread to multiple locations and is interconnected by a network A single logical database that is spread to multiple locations and is interconnected by a network A loose collection of file that is limited to one location. A single logical database that is limited to one location. A loose collection of file that is spread to multiple locations and is interconnected by a network ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases In a semijoin, only the joining attribute is sent from one site to another, and then only the required rows are returned. True False True False ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A distributed database can use which of the following strategies? All of these Partially or totally replicated across sites Totally centralized at one location and accessed by many sites Partitioned into segments at different sites All of these Partially or totally replicated across sites Totally centralized at one location and accessed by many sites Partitioned into segments at different sites ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases An increasingly popular option for data distribution as well as for fault tolerance of any database is to store a separate copy of the database at each of two or more sites. 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 Location transparency allows for which of the following? Managers to treat the data as if it is at one location Users to treat the data as if it is at one location Programmers to treat the data as if it is at one location All of these Managers to treat the data as if it is at one location Users to treat the data as if it is at one location Programmers to treat the data as if it is at one location All of these ANSWER DOWNLOAD EXAMIANS APP
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