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A DBMS must have validation,transformation,and mapping functions,as well as other functions,in order to be classified as distributed.

A) True
B) False

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____ distributed database systems integrate different types of centralized DBMSs over a network.


A) Homogeneous
B) Heterogeneous
C) Fully homogeneous
D) Combination

E) A) and C)
F) A) and D)

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The ____ processor is the software component residing on each computer that stores and retrieves data located at the site.


A) transaction
B) network
C) data
D) management

E) None of the above
F) A) and C)

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In order to manage distributed data,copies or parts of the database processing functions must be distributed to all data storage sites.

A) True
B) False

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The ____________________ commit protocol guarantees that if a portion of a transaction operation cannot be committed,all changes made at the other sites participating in the transaction will be undone to maintain a consistent database state.

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____ distributed database systems integrate only one type of centralized DBMS over a network.


A) Homogeneous
B) Heterogeneous
C) Fully heterogeneous
D) Combination

E) A) and D)
F) A) and C)

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A transaction processor is also known as the ____________________ processor.

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____ transparency allows the system to perform as if it were a centralized database management system.


A) Heterogeneity
B) Distribution
C) Performance
D) Failure

E) B) and D)
F) A) and B)

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Under the ____ scenario,multiple processes run on different computers sharing a single data repository.


A) single-site processing,single-site data
B) multiple-site processing,single-site data
C) single-site processing,multiple-site data
D) multiple-site processing,multiple-site data

E) A) and B)
F) A) and C)

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The World Wide Web (the Web)is the repository for distributed data.

A) True
B) False

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