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Distributed Databases

Q1:

Which of the following is true concerning a global transaction?

A The required data are at one local site and the distributed DBMS routes requests as necessary.

B The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary.

C The required data are at one local site and the distributed DBMS passes the request to only the local DBMS.

D The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS.

ANS:B - The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary.

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