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Distributed Databases
Some of the columns of a relation are at different sites is which of the following?
Data Replication
Horizontal Partitioning
Vertical Partitioning
Horizontal and Vertical Partitioning
Correct Answer:
Vertical Partitioning
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Distributed Databases
Location transparency allows for which of the following?
A distributed database has which of the following advantages over a centralized database?
Which of the following is true concerning a global transaction?
A semijoin is which of the following?
A heterogeneous distributed database is which of the following?
Storing a separate copy of the database at multiple locations is which of the following?
Which of the following is not one of the stages in the evolution of distributed DBMS?
A distributed database can use which of the following strategies?
Synchronization for pull replication is less disruptive and occurs only when needed by each site, not when a central master site thinks it is best to update.
Databases that are stored on computers at multiple locations and are not interconnected by a network are known as distributed databases.
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