Distributed Databases A distributed database is which of the following? A loose collection of file 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 single logical database that is limited to one location. A loose collection of file 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 single logical database that is limited to one location. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A semijoin is which of the following? All of the attributes are sent from one site to another and then only the required rows are returned. Only the joining attributes are sent from one site to another and then only the required rows are returned. All of the attributes are sent from one site to another and then only the required rows are returned. Only the joining attributes are sent from one site to another and then all of the rows are returned. All of the attributes are sent from one site to another and then only the required rows are returned. Only the joining attributes are sent from one site to another and then only the required rows are returned. All of the attributes are sent from one site to another and then only the required rows are returned. Only the joining attributes are sent from one site to another and then all of the rows are returned. 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 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 Slow Response Software cost Modular growth Software complexity Slow Response Software cost Modular growth ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases With failure transparency, all of the actions of a transaction are committed or none of them are committed. True False True False 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 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 All of these Partially or totally replicated across sites ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS