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Question:
In relation to distributed database answer the following questions:
(i) Give a brief definition of distributed database. Support your answer with an appropriate diagram that shows the major component of the distributed database.
(ii) Differentiate between homogeneous distributed database and heterogeneous database system and explain which one will be appropriate for a company which has been using a database for the past 30 years and who now, wants to implement a distributed database.
(iii) Describe briefly two transparency features that exist in a distributed database environment.
(iv) Differentiate between horizontal partitioning and mixed partitioning with appropriate example.
(v) Briefly describe any three advantages of replication.
Consider a bank that has a collection of sites, each running a database system. Suppose the only way the databases interact is by electronic transfer of money between one another,
.#question. Discuss the problem which may arise during concurrency control and recovery in distributed database which are not encountered in controlized database environment.
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