Discussion

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.

Answer: B

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